Ammar Humayun, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

MT213557 Issued in PA

Practice address

21 Eastern Ave Ste 3
Worcester, MA 01605-3094

Phone

(508) 556-0223

NPI assigned

May 29, 2017

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 MA

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

Vascular Surgery

Education

Other, 2016

Medicare assignment

May accept Medicare assignment

Group practices

Vascular Care Group LLCGroup PAC ID 2769871078, 25 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Vincent Hospital Hospital, Worcester, MA, CCN 220176
• Umass Memorial Health - Harrington Hospital Hospital, Southbridge, MA, CCN 220019

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ammar.humayun.1@2915.direct.athenahealth.com

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.

• Vascular Care Group LLC

  • Vascular Surgery Physician
  • Hyannis, MA
  • NPI 1538775481
  Medicare reassignment Care Compare group NPD
• Stephen J. Hoenig, MD, PC

  • Vascular Surgery Physician
  • Leominster, MA
  • NPI 1578561569
  NPD (past)

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

• Umass Memorial Health-Harrington Hospital Inc

  • General Acute Care Hospital
  • Southbridge, MA
  • NPI 1790780047
  Care Compare affiliation
• VHS Acquisition Subsidiary Number 7 Inc

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1538131214
  Care Compare affiliation

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

{
    "created_epoch": "1496016000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764720000000",
    "number": "1750819272",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "21 EASTERN AVE STE 3",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016053094",
            "telephone_number": "508-556-0223"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "21 EASTERN AVE STE 3",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016053094",
            "telephone_number": "508-556-0223"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HUMAYUN",
        "first_name": "AMMAR",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-05-29",
        "last_updated": "2025-12-03",
        "certification_date": "2025-12-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "MA",
            "license": "1023524",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "PA",
            "license": "MT213557",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• William M. Hughes, LADAC
• Anne Hugo-Webb
• Suvan Hukkoo
• Karina P Hull
• Hum Tum Care
• Richard Austin Hummel, PH.D.
• Catherine Humphrey
• Rebecka Lyn Humphrey, LICSW
• Basai Hundessa Wade
• Jessica Lynn Hunnewell, MS CFY-SLP

• Surgery Physician in Worcester, MA
• Providers in Worcester, MA by specialty
• Surgery Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 3, 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.