Alexander Boris Gelfer, MD.

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

166540-2 Issued in NY

Practice address

100 College Parkway
Suite 110
Williamsville, NY 14221

Phone

(716) 631-8863

Fax

(716) 631-1265

NPI assigned

Apr 17, 2006

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

Other identifiers 1

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

Pulmonary Disease

Education

Other, 1972

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Rpci Oncology, PCGroup PAC ID 3870731029, 62 clinicians

Sisters of Charity Hospital of Buffalo New YorkGroup PAC ID 6204749153, 160 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Sisters of Charity Hospital Hospital, Buffalo, NY, CCN 330078

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Rpci Oncology PC

  • Hematology & Oncology Physician
  • Williamsville, NY
  • NPI 1952703985

  Pulmonary Disease

  Medicare reassignment Care Compare group NPD
• Sisters of Charity Hospital of Buffalo New York

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1790727543
  Medicare reassignment Care Compare group NPD
• Kenmore Mercy Hospital

  • General Acute Care Hospital
  • Kenmore, NY
  • NPI 1770598104
  Medicare reassignment NPD
• Pulmonary Group of Western New York, LLP

  • Pulmonary Disease Physician
  • Williamsville, NY
  • NPI 1629131180
  Medicare reassignment NPD
• Roswell Park Cancer Institute

  • Multi-Specialty Clinic/Center
  • Buffalo, NY
  • NPI 1720036593
  Medicare reassignment NPD
• Kenmore Mercy Hospital

  • Pulmonary Disease Physician
  • Kenmore, NY
  • NPI 1659909752
  NPD
• Roswell Park Cancer Institute

  • Pharmacy
  • Williamsville, NY
  • NPI 1871379586
  NPD
• Saif Soniwala,M.D.,PC

  • Hematology & Oncology Physician
  • Williamsville, NY
  • NPI 1114061942
  NPD
• Sisters of Charity Hospital of Buffalo New York

  • General Acute Care Hospital
  • Cheektowaga, NY
  • NPI 1043455199
  NPD

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

• Sisters of Charity Hospital of Buffalo New York

  • General Acute Care Hospital
  • Cheektowaga, NY
  • NPI 1043455199
  Care Compare affiliation
• Sisters of Charity Hospital of Buffalo New York

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1790727543
  Care Compare affiliation

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

{
    "created_epoch": "1145232000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1739404800000",
    "number": "1689638462",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 COLLEGE PARKWAY",
            "address_2": "SUITE 110",
            "city": "WILLIAMSVILLE",
            "state": "NY",
            "postal_code": "14221",
            "telephone_number": "716-631-8863",
            "fax_number": "716-631-1265"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 COLLEGE PARKWAY",
            "address_2": "SUITE 110",
            "city": "WILLIAMSVILLE",
            "state": "NY",
            "postal_code": "14221",
            "telephone_number": "716-631-8863",
            "fax_number": "716-631-1265"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "Elm and Carlton St",
            "address_purpose": "LOCATION",
            "city": "Buffalo",
            "state": "NY",
            "postal_code": "142630001",
            "country_code": "US",
            "telephone_number": "716-631-8863",
            "fax_number": "716-631-1265",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GELFER",
        "first_name": "ALEXANDER",
        "middle_name": "BORIS",
        "name_prefix": "Dr.",
        "credential": "MD.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-17",
        "last_updated": "2025-02-13",
        "certification_date": "2025-02-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "NY",
            "license": "166540-2",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01083825",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Laurie Ann Gay, CCC-SLP
• Monisola Gbolahan, LPN
• Patricia A Geiger, MSN ANP
• Darcy Geis, LPN.CLC
• Nicholas William Geisler, PA-C, MPAS
• Brian Travis Geller, DC
• Matthew Gellert, DDS
• Elizabeth Genco, LCSWR
• Genesis Medical Anesthesia, PC
• Gregory Francis George, D.D.S.

• Pulmonary Disease Physician in Williamsville, NY
• Providers in Williamsville, NY by specialty
• Pulmonary Disease Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 13, 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.