Hannah Sizer Yaggi, PA-C

Primary specialty

Surgical Physician AssistantTaxonomy code 363AS0400X

License

OA007220 Issued in PA

Practice address

2566 Haymaker Rd Ste 304
Monroeville, PA 15146-3555

Phone

(412) 457-0040

NPI assigned

Dec 8, 2016

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

Other identifiers 2

Other names 1

• Hannah Christine Sizer Former name

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, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Allegheny ClinicGroup PAC ID 5395649586, 2,313 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Canonsburg General Hospital Hospital, Canonsburg, PA, CCN 390160
• Jefferson Hospital Hospital, Jefferson Hills, PA, CCN 390265

Merit-based Incentive Payment System (MIPS)

Final score

93.9 of 100Reported as apm

Quality

85.02

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: hsizer223919@direct.ahn.org

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.

• Allegheny Clinic

  • Family Medicine Physician
  • Bethel Park, PA
  • NPI 1073081493
  Medicare reassignment Care Compare group
• University of Pittsburgh Physicians

  • Gastroenterology Physician
  • Pittsburgh, PA
  • NPI 1619935004
  Medicare reassignment
• Allegheny Clinic

  • Primary Care Clinic/Center
  • Pittsburgh, PA
  • NPI 1215752548
  NPD
• Allegheny Clinic

  • Colon & Rectal Surgery Physician
  • Pittsburgh, PA
  • NPI 1326048901
  NPD
• University of Pittsburgh Physicians

  • Diagnostic Radiology Physician
  • Pittsburgh, PA
  • NPI 1285692699
  NPD
• University of Pittsburgh Physicians

  • Internal Medicine Physician
  • Pittsburgh, PA
  • NPI 1538127741
  NPD
• Allegheny Clinic

  • Cardiovascular Disease Physician
  • Pittsburgh, PA
  • NPI 1629078332
  NPD (past)
• Windber Hospital, Inc.

  • General Acute Care Hospital
  • Windber, PA
  • NPI 1275620536
  NPD (past)

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

• Canonsburg General Hospital

  • General Acute Care Hospital
  • Canonsburg, PA
  • NPI 1962401497
  Care Compare affiliation
• Jefferson Regional Medical Center

  • Clinic/Center
  • Clairton, PA
  • NPI 1366488108

  Hospital

  Care Compare affiliation
• Jefferson Regional Medical Center

  • General Acute Care Hospital
  • Clairton, PA
  • NPI 1578560504
  Care Compare affiliation

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

{
    "created_epoch": "1481155200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772064000000",
    "number": "1790229870",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2566 HAYMAKER RD STE 304",
            "city": "MONROEVILLE",
            "state": "PA",
            "postal_code": "151463555",
            "telephone_number": "412-457-0040"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2566 HAYMAKER RD STE 304",
            "city": "MONROEVILLE",
            "state": "PA",
            "postal_code": "151463555",
            "telephone_number": "412-457-0040"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YAGGI",
        "first_name": "HANNAH",
        "middle_name": "SIZER",
        "name_prefix": "Mrs.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-12-08",
        "last_updated": "2026-02-26",
        "certification_date": "2026-02-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "PA",
            "license": "OA007220",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CAQH",
            "identifier": "13990194",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "103510744",
            "state": "PA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hsizer223919@direct.ahn.org",
            "affiliation": "N",
            "address_1": "2566 Haymaker Rd Ste 304",
            "city": "Monroeville",
            "state": "PA",
            "country_code": "US",
            "postal_code": "151463555",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "HANNAH",
            "last_name": "SIZER",
            "middle_name": "CHRISTINE",
            "credential": "PA-C",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• John F Wyble
• Danielle Wymard-Tomlinson, DNP
• Lori B Wynn, MPT
• Yaqin Xia
• Rashmi M Yadav, MD
• Ana Yandrich, PSYD
• Rebecca Lynn Yarussi, MS, CCC-SLP
• Deanne Yates, P.T.A.
• Karen Soohoo Yee, PHARM.D.
• Holly Ann Yencha, MA

• Surgical Physician Assistant in Monroeville, PA
• Providers in Monroeville, PA by specialty
• Surgical Physician Assistant in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 26, 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.