Mian Mohammad Hammas, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

338198 Issued in NY

Practice address

100 High St
Buffalo, NY 14203-1126

Phone

(716) 859-5600

NPI assigned

Apr 5, 2022

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

Electronic endpoints 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

HospitalistAlso: Internal Medicine

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

General Physician PCGroup PAC ID 9537213079, 488 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Kaleida Health Hospital, Buffalo, NY, CCN 330005

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• General Physician, PC

  • General Practice Physician
  • Dunkirk, NY
  • NPI 1093959322
  Medicare reassignment Care Compare group NPD
• General Physician, PC

  • Internal Medicine Physician
  • Orchard Park, NY
  • NPI 1063236529
  NPD
• Kaleida Health

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1427007046
  NPD (past)
• Kaleida Health

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1639209596
  NPD (past)

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

• Kaleida Health

  • General Acute Care Hospital
  • Williamsville, NY
  • NPI 1053441907
  Care Compare affiliation
• Kaleida Health

  • General Acute Care Hospital
  • North Tonawanda, NY
  • NPI 1104956358
  Care Compare affiliation
• Kaleida Health

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1245365196
  Care Compare affiliation
• Kaleida Health

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1366473183
  Care Compare affiliation
• Kaleida Health

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1639209596
  Care Compare affiliation
• Kaleida Health

  • General Acute Care Hospital
  • Buffalo, NY
  • NPI 1831229780
  Care Compare affiliation

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

{
    "created_epoch": "1649116800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757289600000",
    "number": "1003557281",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "726 EXCHANGE ST STE 710",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142101464",
            "telephone_number": "716-852-4772"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 HIGH ST",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142031126",
            "telephone_number": "716-859-5600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1540 Maple Rd",
            "address_purpose": "LOCATION",
            "city": "Williamsville",
            "state": "NY",
            "postal_code": "142213698",
            "country_code": "US",
            "telephone_number": "716-568-3600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAMMAS",
        "first_name": "MIAN",
        "middle_name": "MOHAMMAD",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-05",
        "last_updated": "2025-09-08",
        "certification_date": "2025-09-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "338198",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NY",
            "license": "338198",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mmhammas@kaleidahealth.org",
            "affiliation": "Y",
            "affiliationName": "Kaleida Health",
            "address_1": "100 High St",
            "city": "Buffalo",
            "state": "NY",
            "country_code": "US",
            "postal_code": "142031126",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Pamela Marie Hamilton, FNP
• Paula J Hamilton, NP
• Shanta Hamilton
• Christina M Hamlin, PHYSICIAN ASSISTANT
• Ashley Hamm
• Yvonne Hammell, RN
• Joann Malcos Hammer, AUD CCC
• Judith Anne Hammer, RN
• Julie Hammersmith, MS CCC-A MA CCC-SLP
• Jenelle Hammill, LMHC

• Hospitalist Physician in Buffalo, NY
• Providers in Buffalo, NY by specialty
• Hospitalist Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 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.