Doctor profile · Federal record

Dr. Tammy Nguyen, M.D.

Vascular Surgery Physician (CMS: Vascular Surgery) · Worcester, MA

  • NPI 1356736839
  • Accepts Medicare
  • MIPS 89.0 / 100 · 2023
  • 11 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
55 Lake Ave N
Worcester, MA 016550002
(508) 856-5599
fax (508) 856-8329
Mailing address
Po Box 415348
Boston, MA 022415348

Credentials & registration

NPPES · NUCC
NPI registered
April 2015 — 11 yrs on file
Profile last updated
November 5, 2020
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
2086S0129X — NUCC code
State license (1)
Massachusetts #283226

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356736839. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
413
Distinct HCPCS
10
Medicare allowed
$42,581
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 123 81 $97
15271 Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less 60 11 $85
11043 Removal of muscle and/or tissue, 20.0 sq cm or less 49 25 $156
99204 New patient office or other outpatient visit, 45-59 minutes 42 42 $134
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 35 33 $177
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 26 25 $13
11042 Removal of skin and tissue, 20.0 sq cm or less 21 13 $61
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 20 13 $84
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 19 15 $133
76937 Ultrasonic guidance for blood vessel access 18 17 $14

In context: peer comparison

Among 5 peers in Worcester Vascular Surgery Physician, average services per provider: 79. This provider delivers 5.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$487
Transactions
19
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Organogenesis INC. 18 $364.60
W. L. Gore & Associates, INC. 1 $122.23

By nature of payment

Food and Beverage
$487

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Tammy Nguyen's medical specialty?
Dr. Tammy Nguyen practices Vascular Surgery Physician in Worcester, MA.
Where does Dr. Tammy Nguyen practice?
Dr. Tammy Nguyen practices at 55 Lake Ave N, Worcester, MA 016550002. Office phone: 5088565599.
What is Dr. Tammy Nguyen's NPI?
Dr. Tammy Nguyen's National Provider Identifier (NPI) is 1356736839, issued by NPPES.
Does Dr. Tammy Nguyen accept Medicare assignment?
Yes. Dr. Tammy Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tammy Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less (HCPCS 15271); Removal of muscle and/or tissue, 20.0 sq cm or less (HCPCS 11043). Source: CMS Medicare Physician & Other Practitioners file.