NPIMap

Individual provider Active NPI

Joseph Chapman, DO

  • Gastroenterology Physician
  • Lancaster, PA
National Provider Identifier
1619369576
Registry record updated Feb 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
OS021482 Issued in PA
Practice address
555 North Duke Street
Lancaster, PA 17602-2250
Phone
(717) 544-5935
Fax
(717) 544-8015
NPI assigned
Mar 2, 2015
Last updated
Feb 10, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 10, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Gastroenterology Physician 207RG0100X OS021482 PA Primary

Addresses

Primary practice location

555 North Duke Street
Lancaster, PA 17602-2250

Mailing address

2112 Harrisburg Pike Ste 202
Lancaster, PA 17601-2644
Phone (717) 869-4600

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210820002042 PA Practitioner - Gastroenterology 2466766126 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Edward Via Col of Osteo Medicine-Virginia Campus, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Regional Gastroenterology Associates of Lancaster, LTD.Group PAC ID 4688575434, 248 clinicians
Lancaster General HospitalGroup PAC ID 1254240039, 520 clinicians

Practice addresses (Care Compare)

2112 Harrisburg Pike
Suite 202
Lancaster, PA 17601-2644
Phone (717) 869-4600

555 N Duke St
Lancaster, PA 17602-2250
Phone (717) 544-5681

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy94
Upper gastrointestinal (GI) endoscopy for acid reflux96

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
OS021482PAMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Regional Gastroenterology Associates of Lancaster, LTD. Gastroenterology CurrentSince Sep 1, 2021 Accepting new patients
Lancaster General Hospital Gastroenterology CurrentSince May 1, 2024 Accepting new patients
Midatlantic Endoscopy LLC Current Accepting new patients
Regional Gastroenterology Associates of Lancaster, LTD. CurrentSince Sep 1, 2021 Accepting new patients
Lancaster General Hospital Current Accepting new patients
Lancaster General Medical Group Past Accepting new patients

Locations

4140 Oregon Pike
Ephrata, PA 17522
Phone (717) 544-3400

2112 Harrisburg Pike
#100
Lancaster, PA 17601
Phone (717) 290-5000

2112 Harrisburg Pike
Ste 202
Lancaster, PA 17601
Phone (717) 544-3500

555 N Duke St
Lancaster, PA 17602
Phone (717) 544-5945

Interoperability endpoints

  • Direct secure messaging: jchapman217340@direct-lghealth.org

Organizations & group practices 6

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

Hospital & facility affiliations 10

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": "1425254400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770681600000",
    "number": "1619369576",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2112 HARRISBURG PIKE STE 202",
            "city": "LANCASTER",
            "state": "PA",
            "postal_code": "176012644",
            "telephone_number": "717-869-4600"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "555 NORTH DUKE STREET",
            "city": "LANCASTER",
            "state": "PA",
            "postal_code": "176022250",
            "telephone_number": "717-544-5935",
            "fax_number": "717-544-8015"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHAPMAN",
        "first_name": "JOSEPH",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-03-02",
        "last_updated": "2026-02-10",
        "certification_date": "2026-02-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "PA",
            "license": "OS021482",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lancaster, PA

Sources for this page

Verify at the official NPI Registry.