Joshua Owczarczak

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

333560 Issued in NY

Practice address

1001 Main St FL 4
Buffalo, NY 14203-1009

Phone

(716) 550-8361

Fax

(716) 323-0585

NPI assigned

Apr 1, 2021

Last updated

Nov 10, 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 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

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

Pediatric MedicineAlso: Internal Medicine

Education

State University of New York at Buffalo School of Medicine, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Ub Family Medicine IncGroup PAC ID 1658361381, 37 clinicians

Kaleida HealthGroup PAC ID 7810805280, 214 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: joshuaowczarczak@ubmd.allscriptsdirect.net

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.

• Kaleida Health

  dba Buffalo General Hospital

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1639209596
  Medicare reassignment Care Compare group NPD
• Ub Family Medicine, Inc

  dba UBMD Primary Care

  • Family Medicine Physician
  • Williamsville, NY
  • NPI 1942294467
  Medicare reassignment Care Compare group NPD
• Kaleida Health

  dba Kaleida Health Outpatient Pharmacy

  • Community/Retail Pharmacy
  • Buffalo, NY
  • NPI 1992540546
  NPD
• University Emergency Medical Services Inc.

  • Emergency Medicine Physician
  • Buffalo, NY
  • NPI 1972540482
  NPD

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

{
    "created_epoch": "1617235200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762732800000",
    "number": "1245818939",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "77 GOODELL ST STE 310",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142031243"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 MAIN ST FL 4",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142031009",
            "telephone_number": "716-550-8361",
            "fax_number": "716-323-0585"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1050 Niagara St",
            "address_purpose": "LOCATION",
            "city": "Buffalo",
            "state": "NY",
            "postal_code": "142132001",
            "country_code": "US",
            "telephone_number": "716-768-7600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OWCZARCZAK",
        "first_name": "JOSHUA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-04-01",
        "last_updated": "2025-11-10",
        "certification_date": "2025-11-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "333560",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "NY",
            "license": "333560",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sara Over, RD
• Matthew C Overfield, LMT
• Michael Overholt
• Dariyauna Overton-Tabb
• Eseosa Joy Oviasogie
• Robert J Owczarczak, MSW
• Katherine Owczarzak, RN
• Madelyn Owczarzak
• Katherine Patton Owen, FNP
• Kiara Owen, MSW

• Internal Medicine Physician in Buffalo, NY
• Providers in Buffalo, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 10, 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.