Alexander V. Mezentsev, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

MA054663 Issued in PA

Practice address

255 Route 220 Hwy
Muncy, PA 17756-7568

Phone

(800) 230-4565

NPI assigned

Jan 5, 2011

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 2

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, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Geisinger-HM Joint Venture LLCGroup PAC ID 1355676370, 426 clinicians

Phoenix Rehabilitation and Health Services IncGroup PAC ID 3476464298, shared by 2 NPIs, 2,775 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Residential Home Health of NC PA, LLC Home health agency, Lewisburg, PA, CCN 398144
• Upmc Williamsport Hospital, Williamsport, PA, CCN 390045

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: amezentsev91896@direct.geisinger.edu

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.

• Geisinger-HM Joint Venture, LLC

  • Family Medicine Physician
  • Lock Haven, PA
  • NPI 1144876137
  Medicare reassignment Care Compare group
• Geisinger Clinic

  • Family Medicine Physician
  • Danville, PA
  • NPI 1366493868
  Medicare reassignment
• Geisinger Clinic

  • Internal Medicine Physician
  • Wilkes Barre, PA
  • NPI 1114295565
  NPD
• Geisinger-HM Joint Venture, LLC

  • Family Medicine Physician
  • Williamsport, PA
  • NPI 1073075909

  Physician Assistant

  NPD
• Geisinger-HM Joint Venture, LLC

  • Gastroenterology Physician
  • Montoursville, PA
  • NPI 1396207015
  NPD
• Geisinger Clinic

  • Hospitalist Physician
  • Wilkes Barre, PA
  • NPI 1588614358
  NPD (past)

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

• Residential Home Health of NC PA, LLC

  • Home Health Agency
  • Williamsport, PA
  • NPI 1902235195
  Care Compare affiliation
• Upmc Williamsport

  • Land Ambulance
  • Williamsport, PA
  • NPI 1093890360

  Hospital

  Care Compare affiliation
• Upmc Williamsport

  • Ambulatory Surgical Clinic/Center
  • Williamsport, PA
  • NPI 1225500770

  Hospital

  Care Compare affiliation
• Upmc Williamsport

  • Ambulatory Surgical Clinic/Center
  • Williamsport, PA
  • NPI 1285719559

  Hospital

  Care Compare affiliation
• Upmc Williamsport

  • General Acute Care Hospital
  • Williamsport, PA
  • NPI 1609801976
  Care Compare affiliation
• Upmc Williamsport

  • Psychiatric Hospital Unit
  • Williamsport, PA
  • NPI 1649746488
  Care Compare affiliation
• Upmc Williamsport

  • General Acute Care Hospital
  • Williamsport, PA
  • NPI 1740365097
  Care Compare affiliation
• Upmc Williamsport

  • Primary Care Clinic/Center
  • Williamsport, PA
  • NPI 1982788048

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1294185600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1743120000000",
    "number": "1780988766",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 N ACADEMY AVE",
            "address_2": "CREDENTIALS DEPT",
            "city": "DANVILLE",
            "state": "PA",
            "postal_code": "178224903",
            "telephone_number": "570-271-6144"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "255 ROUTE 220 HWY",
            "city": "MUNCY",
            "state": "PA",
            "postal_code": "177567568",
            "telephone_number": "800-230-4565"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "780 Broad St",
            "address_2": "Ste 4",
            "address_purpose": "LOCATION",
            "city": "Montoursville",
            "state": "PA",
            "postal_code": "177542419",
            "country_code": "US",
            "telephone_number": "570-368-2870",
            "fax_number": "570-368-4463",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MEZENTSEV",
        "first_name": "ALEXANDER",
        "middle_name": "V.",
        "name_prefix": "Mr.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-01-05",
        "last_updated": "2025-03-28",
        "certification_date": "2025-03-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "PA",
            "license": "MA054663",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "amezentsev91896@direct.geisinger.edu",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "780 Broad St",
            "address_2": "Ste 4",
            "city": "Montoursville",
            "state": "PA",
            "country_code": "US",
            "postal_code": "177542419",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "amezentsev91896@direct.geisinger.edu",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "255 Route 220 Hwy",
            "city": "Muncy",
            "state": "PA",
            "country_code": "US",
            "postal_code": "177567568",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Daniel Matthew McConnell, PHARMD
• Harrison Gooderham McCormick, MSW BCD
• Melinda A McKee, DC
• Matthew McLaughlin, PT
• Katherine Mae McNitt, RD, LDN
• Paula Miller, PAC
• Jeff Minor
• Manuel V Moreno, MD
• Debra A Morin, PHYSICAL THERAPIST
• Muncee Emergency Physicians, LLC

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 28, 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.