Individual provider Active NPI

Thomas M Oconnor, DO

  • Vascular Surgery Physician
  • Lancaster, PA
National Provider Identifier
1144213992
Registry record updated Jun 6, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Vascular Surgery PhysicianTaxonomy code 2086S0129X
License
OS009572L Issued in PA
Practice address
2102 Harrisburg Pike
Lancaster, PA 17601-2644
Phone
(717) 544-9400
Fax
(717) 544-9401
NPI assigned
Aug 26, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 6, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X OS009572L PA
Vascular Surgery Physician 2086S0129X OS009572L PA Primary

Addresses

Primary practice location

2102 Harrisburg Pike
Lancaster, PA 17601-2644

Mailing address

2102 Harrisburg Pike
Lancaster, PA 17601-2644
Phone (717) 733-4644

Other identifiers 5

IdentifierTypeStateIssuer
50009563OtherPACAPITAL BLUE CROSS
20020201OtherPAMERCY HEALTH PLAN
963231OtherBLUE SHIELD OF PA
001602890MedicaidPA
P00000115OtherRAILROAD MEDICARE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA
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 1

Enrollment IDStateProvider typePAC IDDetails
I20050502000378 PA Practitioner - Vascular SurgeryPractitioner - Thoracic SurgeryPractitioner - General Surgery 4789623596 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Vascular SurgeryAlso: General Surgery, Thoracic Surgery
Education
New York College of Osteo Medicine of New York Institute of Technology, 1987
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Lancaster General Medical GroupGroup PAC ID 0941103683, 590 clinicians

Practice addresses (Care Compare)

1261 Division Hwy
Ephrata, PA 17522-8822

1261 Division Hwy 2
Ephrata, PA 17522-8822
Phone (717) 738-5544

2100 Harrisburg Pike
Suite 2112
Lancaster, PA 17601-2644
Phone (717) 544-3216

2102 Harrisburg Pike
Lancaster, PA 17601-2644
Phone (717) 544-9400

2104 Harrisburg Pike
Suite 200
Lancaster, PA 17601-2644
Phone (717) 544-3626

2106 Harrisburg Pike
Lancaster, PA 17601-2644

2108 Harrisburg Pike
Lancaster, PA 17601-2644

2110 Harrisburg Pike
Lancaster, PA 17601-2644

2112 Harrisburg Pike
Lancaster, PA 17601-2644

2150 Harrisburg Pike
Suite 200a
Lancaster, PA 17601-2644
Phone (717) 544-3059

3045 Marietta Ave
Lancaster, PA 17601-1321
Phone (717) 299-4644

554 N Duke St
LGHP Penn Med Plastic and Cosmetic Surgery
Lancaster, PA 17602-2250
Phone (717) 291-5863

555 N Duke St
Lancaster, PA 17602-2250

555 N Duke St 1St Floor
LGHP Penn Medicine Behavioral Health
Lancaster, PA 17602-2250
Phone (717) 560-3782

Hospital & facility affiliations

  • Lancaster General Hospital Hospital, Lancaster, PA, CCN 390100

Procedures performed for Medicare patients

ProcedureNumber of procedures
Cataract surgery1-10
Varicose vein removal1-10
Leg revascularization (restoring blood flow)11

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Ephrata Community Hospital Current Accepting new patients
Lancaster General Medical Group CurrentSince Jul 29, 2019 Accepting new patients
Lancaster General Medical Group CurrentSince Jul 29, 2019 Accepting new patients
Lancaster General Medical Group Current Accepting new patients
Lancaster General Medical Group Past Accepting new patients

Locations

1261 Division Hwy
#2
Ephrata, PA 17522
Phone (717) 299-1301

169 Martin Ave
Ephrata, PA 17522
Phone (717) 733-0311

3045 Marietta Ave
Lancaster, PA 17601
Phone (717) 299-4644

2104 Harrisburg Pike
Ste 200
Lancaster, PA 17601
Phone (717) 290-3626

2102 Harrisburg Pike
Lancaster, PA 17601
Phone (717) 544-3600

554 N Duke St
Lancaster, PA 17602
Phone (717) 291-5863

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 and National Provider Directory roles.

Hospital & facility affiliations 3

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": "1125014400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749168000000",
    "number": "1144213992",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2102 HARRISBURG PIKE",
            "city": "LANCASTER",
            "state": "PA",
            "postal_code": "176012644",
            "telephone_number": "717-733-4644"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2102 HARRISBURG PIKE",
            "city": "LANCASTER",
            "state": "PA",
            "postal_code": "176012644",
            "telephone_number": "717-544-9400",
            "fax_number": "717-544-9401"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OCONNOR",
        "first_name": "THOMAS",
        "middle_name": "M",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-26",
        "last_updated": "2025-06-06",
        "certification_date": "2025-06-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "PA",
            "license": "OS009572L",
            "primary": false
        },
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "PA",
            "license": "OS009572L",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CAPITAL BLUE CROSS",
            "identifier": "50009563",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MERCY HEALTH PLAN",
            "identifier": "20020201",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE SHIELD OF PA",
            "identifier": "963231",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "001602890",
            "state": "PA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "P00000115",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Lancaster, PA

Sources for this page

Verify at the official NPI Registry.