Individual provider Active NPI

Ahsan Gulzar, MD

  • Pulmonary Disease Physician
  • Buffalo, NY
National Provider Identifier
1376021063
Registry record updated Jan 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pulmonary Disease PhysicianTaxonomy code 207RP1001X
License
339883 Issued in NY
Practice address
100 High St # B614
Buffalo, NY 14203-1126
Phone
(716) 859-4711
Fax
(716) 859-2931
NPI assigned
Aug 3, 2018
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 19, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Critical Care Medicine (Internal Medicine) PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RC0200X 339883 NY
Pulmonary Disease PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207RP1001X 339883 NY Primary

Addresses

Primary practice location

100 High St # B614
Buffalo, NY 14203-1126

Mailing address

100 High St # B614
Buffalo, NY 14203-1126
Phone (716) 859-4711

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20251117000163 NY Practitioner - Internal MedicinePractitioner - Pulmonary Disease 2860881166 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Pulmonary Disease
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Kaleida HealthGroup PAC ID 7810805280, 214 clinicians
Academic Medicine Services, Inc.Group PAC ID 0941105241, 115 clinicians

Practice addresses (Care Compare)

100 High St
Buffalo, NY 14203-1126
Phone (716) 859-5600

1020 Youngs Rd
Suite 110
Williamsville, NY 14221-2698
Phone (716) 961-9900

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
339883NYMDPulmonary Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Kaleida Health CurrentSince Dec 30, 2025 Accepting new patients
Kaleida Health Multi-Specialty CurrentSince Dec 30, 2025 Accepting new patients
Academic Medicine Services, Inc. Multi-Specialty CurrentSince Oct 1, 2025 Accepting new patients
Kaleida Health Multi-Specialty Past Accepting new patients

Locations

100 High St
#D1
Buffalo, NY 14203
Phone (716) 422-0010

100 High St
Buffalo, NY 14203
Phone (716) 632-3700

100 High St
#B614
Buffalo, NY 14203
Phone (716) 859-4711

462 Grider St
Fl 11
Buffalo, NY 14215
Phone (716) 898-4803

445 Tremont St
North Tonawanda, NY 14120
Phone (716) 690-2291

1020 Youngs Rd
Ste 110
Williamsville, NY 14221
Phone (716) 636-8284

1540 Maple Rd
Williamsville, NY 14221
Phone (716) 568-3514

Organizations & group practices 5

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.

Hospital & facility affiliations 6

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

NPI Registry JSON

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

{
    "created_epoch": "1533254400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768780800000",
    "number": "1376021063",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 HIGH ST # B614",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142031126",
            "telephone_number": "716-859-4711",
            "fax_number": "716-859-2931"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 HIGH ST # B614",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142031126",
            "telephone_number": "716-859-4711",
            "fax_number": "716-859-2931"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GULZAR",
        "first_name": "AHSAN",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2018-08-03",
        "last_updated": "2026-01-19",
        "certification_date": "2026-01-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "NY",
            "license": "339883",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "NY",
            "license": "339883",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Buffalo, NY

Sources for this page

Verify at the official NPI Registry.