Allison Callahan, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

MA051702 Issued in PA

Practice address

200 Lothrop St
Pittsburgh, PA 15213-2536

Phone

(412) 647-2345

NPI assigned

May 26, 2006

Sex

Female

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Pittsburgh PhysiciansGroup PAC ID 8729990239, 4,166 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Upmc Presbyterian Shadyside Hospital, Pittsburgh, PA, CCN 390164
• Magee Womens Hospital of Upmc Health System Hospital, Pittsburgh, PA, CCN 390114

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: acallahan52102@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 and National Provider Directory roles.

• University of Pittsburgh Physicians

  • Gastroenterology Physician
  • Pittsburgh, PA
  • NPI 1619935004
  Medicare reassignment Care Compare group
• Valley Medical Facilities Inc

  • General Acute Care Hospital
  • Beaver, PA
  • NPI 1063422053
  Medicare reassignment NPD
• University of Pittsburgh Physicians

  • Diagnostic Radiology Physician
  • Pittsburgh, PA
  • NPI 1285692699
  NPD
• Valley Medical Facilities, Inc.

  • General Acute Care Hospital
  • Beaver Falls, PA
  • NPI 1023830981
  NPD

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

• Upmc Magee-Womens Hospital

  • Ambulatory Surgical Clinic/Center
  • Pittsburgh, PA
  • NPI 1659435501

  Hospital

  Care Compare affiliation
• Upmc Magee-Womens Hospital

  • General Acute Care Hospital
  • Pittsburgh, PA
  • NPI 1952311508
  Care Compare affiliation
• Upmc Presbyterian Shadyside

  • Ambulatory Surgical Clinic/Center
  • Pittsburgh, PA
  • NPI 1144384082

  Hospital

  Care Compare affiliation
• Upmc Presbyterian Shadyside

  • Methadone Clinic
  • Pittsburgh, PA
  • NPI 1518089200

  Hospital

  Care Compare affiliation
• Upmc Presbyterian Shadyside

  • Psychiatric Hospital Unit
  • Pittsburgh, PA
  • NPI 1750390134
  Care Compare affiliation
• Upmc Presbyterian Shadyside

  • General Acute Care Hospital
  • Pittsburgh, PA
  • NPI 1821007881
  Care Compare affiliation

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

{
    "created_epoch": "1148601600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787011200000",
    "number": "1750337937",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 LOTHROP ST",
            "city": "PITTSBURGH",
            "state": "PA",
            "postal_code": "152132536",
            "telephone_number": "412-647-2345"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 LOTHROP ST",
            "city": "PITTSBURGH",
            "state": "PA",
            "postal_code": "152132536",
            "telephone_number": "412-647-2345"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CALLAHAN",
        "first_name": "ALLISON",
        "name_prefix": "Dr.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-26",
        "last_updated": "2026-08-18",
        "certification_date": "2023-08-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "PA",
            "license": "MA051702",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "acallahan52102@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": []
}

• Sarah Caligiuri, MS
• Jennifer Marie Caliskan, LPC, CRC
• Catherine Calkins, NP-C
• Christine C Call, PHD
• Calla Lily Counseling LLC
• Carolyn Theresa Callahan, LSW, CEAP, ACSW
• Erica Callahan
• Jataya Callahan
• Mark Lawrence Callahan, SLP
• Maureen Dorothy Callan, MSW

• Physician Assistant in Pittsburgh, PA
• Providers in Pittsburgh, PA by specialty
• Physician Assistant in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 18, 2026; 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.