Gregory Martinek

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

OS009528L Issued in PA

Practice address

620 Howard Ave
Lexington Hospitalists Inc.
Altoona, PA 16601-4804

Phone

(814) 889-2223

NPI assigned

Feb 24, 2006

Last updated

Dec 2, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Electronic endpoints 1

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

Specialty

Internal Medicine

Education

Philadelphia College of Osteopathic Medicine, 1996

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Upmc AltoonaGroup PAC ID 8426962465, 126 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Upmc Altoona Hospital, Altoona, PA, CCN 390073

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gmartinek516784@upmc.direct-ci.com

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.

• Upmc Altoona

  dba Altoona Emergency Physicians

  • General Acute Care Hospital
  • Altoona, PA
  • NPI 1497831655
  Medicare reassignment Care Compare group NPD
• Upmc Altoona

  • Ambulatory Surgical Clinic/Center
  • Altoona, PA
  • NPI 1114926953
  NPD
• Upmc Altoona

  • General Acute Care Hospital
  • Altoona, PA
  • NPI 1649278730
  NPD (past)

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

• Upmc Altoona

  • Ambulatory Surgical Clinic/Center
  • Altoona, PA
  • NPI 1114926953

  Hospital

  Care Compare affiliation
• Upmc Altoona

  dba Women's Health and Wellness

  • Non-Surgical Family Planning Clinic/Center
  • Altoona, PA
  • NPI 1457303885

  Hospital

  Care Compare affiliation
• Upmc Altoona

  • General Acute Care Hospital
  • Altoona, PA
  • NPI 1649278730
  Care Compare affiliation
• Upmc Altoona

  • Psychiatric Hospital Unit
  • Altoona, PA
  • NPI 1699773465
  Care Compare affiliation

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

{
    "created_epoch": "1140739200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764633600000",
    "number": "1205802857",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "620 HOWARD AVE",
            "address_2": "LEXINGTON HOSPITALISTS INC.",
            "city": "ALTOONA",
            "state": "PA",
            "postal_code": "166014804"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "620 HOWARD AVE",
            "address_2": "LEXINGTON HOSPITALISTS INC.",
            "city": "ALTOONA",
            "state": "PA",
            "postal_code": "166014804",
            "telephone_number": "814-889-2223"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARTINEK",
        "first_name": "GREGORY",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-24",
        "last_updated": "2025-12-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "OS009528L",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "gmartinek516784@upmc.direct-ci.com",
            "affiliation": "N",
            "address_1": "600 Grant St",
            "address_2": "Floor 58",
            "city": "Pittsburgh",
            "state": "PA",
            "country_code": "US",
            "postal_code": "152192702",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Margaret Sharp Martin, LCSW
• Nathan Martin
• Noah Martin
• Patricia Marie Martin, LPC
• Susan B Martin, RN
• Joseph A Martinelli, M.D.
• Alyssa Marie Martyak
• Megan Lyn Maserati, CRNP
• Jessica Lee Mash, PTA
• Amanda Massaro, RN

• Internal Medicine Physician in Altoona, PA
• Providers in Altoona, PA by specialty
• Internal Medicine Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 2, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.