Individual provider Active NPI

Douglas Martin Weissman, MD

  • Gastroenterology Physician
  • Pittsburgh, PA
National Provider Identifier
1801800289
Registry record updated Dec 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
036144304 Issued in IL
Practice address
1307 Federal St Ste B100
Pittsburgh, PA 15212-4761
Phone
(412) 359-8900
Fax
(412) 359-8977
NPI assigned
Jul 28, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 3, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 7

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X 3872 WI
Gastroenterology Physician 207RG0100X MD479317 PA
Gastroenterology Physician 207RG0100X 25MA04832600 NJ
Gastroenterology Physician 207RG0100X 35.129369 OH
Internal Medicine Physician 207R00000X 01077964A IN
Gastroenterology Physician 207RG0100X 036144304 IL Primary
Gastroenterology Physician 207RG0100X 01077964A IN

Addresses

Primary practice location

1307 Federal St Ste B100
Pittsburgh, PA 15212-4761

Mailing address

2 Deepwood CT
Old Westbury, NY 11568-1006

Other practice location 1

11104 Parkview Circle Dr Ste 310
Fort Wayne, IN 46845-1733
Phone (260) 266-5230

Other practice location 2

1505 W Sherman Ave
Vineland, NJ 08360-7059
Phone (856) 691-1129

Other practice location 3

1701 N Senate Blvd
Indianapolis, IN 46202-1239
Phone (317) 962-2000

Other practice location 4

111 S Grant Ave
Columbus, OH 43215-4701
Phone (614) 566-9550

Other identifiers 3

IdentifierTypeStateIssuer
0448319MedicaidOH
100265946MedicaidWI
1101997375OtherINANTHEM PTAN

Electronic endpoints 5

TypeEndpointUseAffiliation
Direct Messaging Address DWEISSMAN@DIRECT.IUHEALTH.ORG Direct
Direct Messaging Address dweissman1316249@direct.ohiohealth.com OhioHealth Corporation
FHIR URL https://epicprod-mobile.parkview.com/FHIR/api/FHIR/R4/
Direct Messaging Address dweissman192147@Direct.Parkviewexchange.com
FHIR URL https://epicprod-mobile.parkview.com/FHIR/api/FHIR/DSTU2/

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in FL, IL, IN, TN, OH, NY, PA, WI, KS9 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 9

Enrollment IDStateProvider typePAC IDDetails
I20070316000255 FL Practitioner - GastroenterologyPractitioner - Internal Medicine 6709989437 Reassigns benefits to 1 organization
I20180517002388 IL Practitioner - GastroenterologyPractitioner - Internal Medicine 6709989437 Reassigns benefits to 1 organization
I20180705000780 IN Practitioner - GastroenterologyPractitioner - Internal MedicinePractitioner - Hospitalist 6709989437 Reassigns benefits to 2 organizations
I20200327002462 TN Practitioner - GastroenterologyPractitioner - Hospitalist 6709989437 Reassigns benefits to 1 organization
I20210701001459 OH Practitioner - Gastroenterology 6709989437 Reassigns benefits to 4 organizations
I20211203002103 NY Practitioner - GastroenterologyPractitioner - Internal Medicine 6709989437 Reassigns benefits to 1 organization
I20221014002356 PA Practitioner - GastroenterologyPractitioner - Internal Medicine 6709989437 Reassigns benefits to 1 organization
I20240318002011 WI Practitioner - Gastroenterology 6709989437
I20260331003225 KS Practitioner - GastroenterologyPractitioner - Internal Medicine 6709989437 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Other, 1985
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Partners Physician GroupGroup PAC ID 4183529340, 409 clinicians
Kettering Independent Medical Group IncGroup PAC ID 3173710936, 699 clinicians

Practice addresses (Care Compare)

1 Akron General Ave
Akron, OH 44307-2432
Phone (330) 384-5050

5100 W 110TH St
Suite 120
Overland Park, KS 66211-1215
Phone (816) 361-0055

7700 Washington Village Dr
Suite 130
Centerville, OH 45459-4094
Phone (937) 531-0195

Hospital & facility affiliations

  • Menorah Medical Center Hospital, Overland Park, KS, CCN 170182
  • Overland Park Reg Med Ctr Hospital, Overland Park, KS, CCN 170176
  • Grant Medical Center Hospital, Columbus, OH, CCN 360017
  • Kettering Health Main Campus Hospital, Kettering, OH, CCN 360079
  • Akron General Medical Center Hospital, Akron, OH, CCN 360027

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy53
Upper gastrointestinal (GI) endoscopy for acid reflux92

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
01077964AINMDInternal Medicine Physician
036144304ILMDGastroenterology Physician
25MA04832600NJMDGastroenterology Physician
35.129369OHMDGastroenterology Physician
3872WIMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Iu Health Medical Group, LLC CurrentSince Jul 25, 2025 Accepting new patients
Saint Thomas Medical Partners Internal Medicine CurrentSince Mar 1, 2020 Accepting new patients
St Josephs Medical PC Internal Medicine CurrentSince Nov 22, 2021 Accepting new patients
Rush University Medical Center CurrentSince May 1, 2022 Accepting new patients
Allegheny Clinic CurrentSince Sep 1, 2022 Accepting new patients
Aurora Medical Group, Inc. Internal Medicine Current Accepting new patients
Partners Physician Group CurrentSince Jul 16, 2022 Accepting new patients
Rush University Medical Group Internal Medicine CurrentSince May 1, 2022 Accepting new patients
Kettering Independent Medical Group Inc Internal Medicine CurrentSince Feb 20, 2026 Accepting new patients
Nchmd Inc CurrentSince Oct 10, 2023 Accepting new patients
Allegheny Clinic Current Accepting new patients
North Medical PC Internal Medicine Current Accepting new patients
Inspira Health Network Medical Group, P.C. CurrentSince Apr 28, 2025 Accepting new patients
Kansas City Gastroenterology & Hepatology Physicians Group, LLC Internal Medicine CurrentSince Feb 24, 2026 Accepting new patients
Parkview Health System Inc Internal Medicine Current Accepting new patients
Allegheny Clinic CurrentSince Sep 1, 2022 Accepting new patients
Partners Physician Group Internal Medicine CurrentSince Jul 16, 2022 Accepting new patients
Trihealth G LLC Internal Medicine CurrentSince Jun 29, 2021 Accepting new patients
Parkview Health System,Inc. Internal Medicine CurrentSince Mar 6, 2024 Accepting new patients
Nchmd, Inc CurrentSince Oct 10, 2023 Accepting new patients
Trihealth G, LLC CurrentSince Jun 29, 2021 Accepting new patients

Locations (25 of 33)

11190 Health Park Blvd
Naples, FL 34110
Phone (239) 300-9721

350 7th St N
Naples, FL 34102
Phone (239) 436-5000

680 2nd Ave N
Ste 304
Naples, FL 34102
Phone (239) 261-7711

1725 W Harrison St
Ste 207
Chicago, IL 60612

1700 W Van Buren St
#500
Chicago, IL 60612
Phone (312) 563-2875

2525 S Michigan Ave
Chicago, IL 60616
Phone (312) 355-1153

75 Remittance Dr
Dept 1611
Chicago, IL 60675

11104 Parkview Circle Dr
Ste 310
Fort Wayne, IN 46845
Phone (260) 266-5230

240 S Jefferson St
Ste B
Huntington, IN 46750
Phone (219) 259-0000

250 N Shadeland Ave
Indianapolis, IN 46219
Phone (317) 948-9174

1701 Senate Blvd
Indianapolis, IN 46202
Phone (317) 612-2754

1701 S Creasy Ln
Lafayette, IN 47905
Phone (765) 502-4400

5100 W 110th St
Ste 120
Overland Park, KS 66211
Phone (913) 234-7600

134 Bridgeton Pike
Ste C
Mullica Hill, NJ 08062
Phone (856) 478-2111

798 Centerton Rd
Pittsgrove, NJ 08318
Phone (856) 358-6161

1505 W Sherman Ave
Vineland, NJ 08360
Phone (856) 451-6600

2950 College Dr
Ste 2A
Vineland, NJ 08360
Phone (856) 641-8680

2950 College Dr
Ste 2G
Vineland, NJ 08360
Phone (856) 691-1129

5100 W Taft Rd
Ste 2T
Liverpool, NY 13088
Phone (315) 744-1592

301 Prospect Ave
Syracuse, NY 13203
Phone (315) 448-5111

1 Akron General Ave
Akron, OH 44307
Phone (330) 344-5760

224 W Exchange St
Ste 160
Akron, OH 44302
Phone (330) 344-6505

224 W Exchange St
Ste 225
Akron, OH 44302
Phone (330) 344-7400

2001 Anderson Ferry Rd
Cincinnati, OH 45238
Phone (513) 922-1200

4685 Forest Ave
Cincinnati, OH 45212
Phone (513) 853-4721

Interoperability endpoints

  • Direct secure messaging: dweissman192147@direct.parkviewexchange.com
  • Direct secure messaging: dweissman@direct.iuhealth.org

Organizations & group practices 22

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

View all 22

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1154044800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764720000000",
    "number": "1801800289",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2 DEEPWOOD CT",
            "city": "OLD WESTBURY",
            "state": "NY",
            "postal_code": "115681006"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1307 FEDERAL ST STE B100",
            "city": "PITTSBURGH",
            "state": "PA",
            "postal_code": "152124761",
            "telephone_number": "412-359-8900",
            "fax_number": "412-359-8977"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "11104 Parkview Circle Dr Ste 310",
            "address_purpose": "LOCATION",
            "city": "Fort Wayne",
            "state": "IN",
            "postal_code": "468451733",
            "country_code": "US",
            "telephone_number": "260-266-5230",
            "fax_number": "260-266-5238",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1505 W Sherman Ave",
            "address_purpose": "LOCATION",
            "city": "Vineland",
            "state": "NJ",
            "postal_code": "083607059",
            "country_code": "US",
            "telephone_number": "856-691-1129",
            "fax_number": "856-691-1229",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1701 N Senate Blvd",
            "address_purpose": "LOCATION",
            "city": "Indianapolis",
            "state": "IN",
            "postal_code": "462021239",
            "country_code": "US",
            "telephone_number": "317-962-2000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "111 S Grant Ave",
            "address_purpose": "LOCATION",
            "city": "Columbus",
            "state": "OH",
            "postal_code": "432154701",
            "country_code": "US",
            "telephone_number": "614-566-9550",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WEISSMAN",
        "first_name": "DOUGLAS",
        "middle_name": "MARTIN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-28",
        "last_updated": "2025-12-03",
        "certification_date": "2025-12-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "WI",
            "license": "3872",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "PA",
            "license": "MD479317",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NJ",
            "license": "25MA04832600",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "OH",
            "license": "35.129369",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IN",
            "license": "01077964A",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "IL",
            "license": "036144304",
            "primary": true
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "IN",
            "license": "01077964A",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0448319",
            "state": "OH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100265946",
            "state": "WI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ANTHEM PTAN",
            "identifier": "1101997375",
            "state": "IN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "DWEISSMAN@DIRECT.IUHEALTH.ORG",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1701 N Senate Blvd",
            "city": "Indianapolis",
            "state": "IN",
            "country_code": "US",
            "postal_code": "462021239",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "dweissman1316249@direct.ohiohealth.com",
            "affiliation": "Y",
            "affiliationName": "OhioHealth Corporation",
            "address_1": "111 S Grant Ave",
            "city": "Columbus",
            "state": "OH",
            "country_code": "US",
            "postal_code": "432154701",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicprod-mobile.parkview.com/FHIR/api/FHIR/R4/",
            "affiliation": "N",
            "address_1": "11104 Parkview Circle Dr Ste 310",
            "city": "Fort Wayne",
            "state": "IN",
            "country_code": "US",
            "postal_code": "468451733",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "dweissman192147@Direct.Parkviewexchange.com",
            "affiliation": "N",
            "address_1": "11104 Parkview Circle Dr Ste 310",
            "city": "Fort Wayne",
            "state": "IN",
            "country_code": "US",
            "postal_code": "468451733",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicprod-mobile.parkview.com/FHIR/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "11104 Parkview Circle Dr Ste 310",
            "city": "Fort Wayne",
            "state": "IN",
            "country_code": "US",
            "postal_code": "468451733",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Pittsburgh, PA

Sources for this page

Verify at the official NPI Registry.