Ammar Humayun, MD
Surgery · Worcester, MA
At a glance
21 Eastern Ave Ste 3, Worcester, MA 01605-3094
Published activity: Leg revascularization (restoring blood flow) · Spinal fusion · Varicose vein removal. View counts and coverage
NPPES record updated Dec 3, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
21 Eastern Ave Ste 3Worcester, MA 01605-3094
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2016
- CMS specialties
- Vascular Surgery
Practice groups
Reported hospital affiliations
- St Vincent Hospital Worcester, MA
- Umass Memorial Health - Harrington Hospital Southbridge, MA
- Umass Memorial Medical Center/University Campus Worcester, MA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Leg revascularization (restoring blood flow) | 1-10 |
| Spinal fusion | 1-10 |
| Varicose vein removal | 11 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $1,788.04 |
| Education | $241.83 |
Reporting companies
| Company | Amount |
|---|---|
| MEDTRONIC, INC. | $873.00 |
| W. L. GORE & ASSOCIATES, INC. | $324.26 |
| COOK MEDICAL LLC | $225.79 |
| INARI MEDICAL, INC. | $178.61 |
| KERECIS LIMITED | $153.82 |
| LEMAITRE VASCULAR, INC. | $119.89 |
| REFLOW MEDICAL INC | $79.36 |
| STRYKER CORPORATION | $55.80 |
| Other reporting companies | $19.34 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Surgery
- Taxonomy code
- 208600000X
- Enumeration date
- May 29, 2017
- Record updated
- Dec 3, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
2086S0129X
License reported: 1023524 MA
208600000X · Primary
License reported: MT213557 PA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
21 Eastern Ave Ste 3Worcester, MA 01605-3094
- Phone
- (508) 556-0223
Mailing address
21 EASTERN AVE STE 3WORCESTER, MA 016053094
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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