NPIMap

Individual provider Active NPI

Jonathan Ohm, M.D.

  • Gastroenterology Physician
  • Allentown, PA
National Provider Identifier
1124447438
Registry record updated Sep 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
MD473308 Issued in PA
Practice address
501 Cetronia Rd
Allentown, PA 18104-9569
Phone
(484) 526-6545
NPI assigned
Apr 15, 2014
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 12, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 270012 MA
Student in an Organized Health Care Education/Training Program 390200000X MA
Student in an Organized Health Care Education/Training Program 390200000X CT
Gastroenterology PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207RG0100X MD473308 PA Primary

Addresses

Primary practice location

501 Cetronia Rd
Allentown, PA 18104-9569

Mailing address

501 Cetronia Rd
Allentown, PA 18104-9569
Phone (484) 526-6545

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA, NJ2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20210709002071 PA Practitioner - Internal MedicinePractitioner - Gastroenterology 7416176706 Reassigns benefits to 2 organizations
I20230210000292 NJ Practitioner - Gastroenterology 7416176706 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Gastroenterology
Education
Rutgers New Jersey Medical School, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Gslpg, IncGroup PAC ID 7810226875, 269 clinicians
St Lukes Physician Group IncGroup PAC ID 6709798333, 2,161 clinicians

Practice addresses (Care Compare)

100 Paramount Blvd
Orwigsburg, PA 17961-2202
Phone (484) 526-2440

501 Cetronia Rd
Suite 140
Allentown, PA 18104-9569
Phone (484) 526-6545

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy82
Upper gastrointestinal (GI) endoscopy for acid reflux95

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
St Luke's Physician Group Inc Single Specialty CurrentSince Aug 1, 2022 Accepting new patients
St. Luke's Warren Physician Group, PC CurrentSince Dec 1, 2022 Accepting new patients
Gslpg, Inc Single Specialty CurrentSince Feb 12, 2026 Accepting new patients
St. Luke's Warren Physician Group, PC Single Specialty Current Accepting new patients
St. Luke's Warren Physician Group, PC Single Specialty CurrentSince Dec 1, 2022 Accepting new patients
St. Luke's Physician Group, Inc. CurrentSince Aug 1, 2022 Accepting new patients
St. Luke's Physician Group, Inc. Single Specialty Current Accepting new patients
St. Luke's Physician Group, Inc Past Accepting new patients

Locations

185 Roseberry St
Bldg 2ND
Phillipsburg, NJ 08865
Phone (908) 847-2619

279 State Route 31 S
Washington, NJ 07882
Phone (908) 689-2201

501 Cetronia Rd
Allentown, PA 18104
Phone (484) 426-2501

501 Cetronia Rd
Ste 140
Allentown, PA 18104
Phone (484) 426-2511

801 Ostrum St
Fountain Hill, PA 18015
Phone (610) 954-2200

Interoperability endpoints

  • Direct secure messaging: jonathan.ohm@slpg.direct-sluhn.org

Organizations & group practices 8

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.

Hospital & facility affiliations 9

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": "1397520000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757635200000",
    "number": "1124447438",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "501 CETRONIA RD",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181049569",
            "telephone_number": "484-526-6545"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "501 CETRONIA RD",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181049569",
            "telephone_number": "484-526-6545"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OHM",
        "first_name": "JONATHAN",
        "name_prefix": "Mr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2014-04-15",
        "last_updated": "2025-09-12",
        "certification_date": "2025-09-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "270012",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "MA",
            "license": null,
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "CT",
            "license": null,
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "PA",
            "license": "MD473308",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Allentown, PA

Sources for this page

Verify at the official NPI Registry.