Doctor profile · Federal record
Dr. Gordon Williams, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Boston, MA
- NPI 1477503993
- Accepts Medicare
- 63 yrs in practice
- Male
- No sanctions
Practice & contact
- Primary practice
-
221 Longwood Avenue Rfb2, Brigham and Women's Hospital Endocrinology Diabetes and
Boston, MA 02115
(617) 732-5661
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1963 — 63 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- Massachusetts #29417
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477503993. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
32
Distinct HCPCS
1
Medicare allowed
$3,327
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 32 | 21 | $104 |
In context: peer comparison
Among 97 peers in Boston Endocrinology, Diabetes & Metabolism Physician, average services per provider: 116. This provider delivers 0.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
61
Patients
0
Total drug cost
$4,665
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Synthroid (Levothyroxine Sodium) | Brand | 25 | 0 | $3,027 |
| Levothyroxine Sodium | Generic | 22 | 0 | $729 |
| Hydrocortisone | Generic | 14 | 0 | $909 |
Hospital affiliations
Frequently asked questions
What is Dr. Gordon Williams's medical specialty?
Dr. Gordon Williams practices Endocrinology, Diabetes & Metabolism Physician in Boston, MA.
Where does Dr. Gordon Williams practice?
Dr. Gordon Williams practices at 221 Longwood Avenue Rfb2, Boston, MA 02115. Office phone: 6177325661.
What is Dr. Gordon Williams's NPI?
Dr. Gordon Williams's National Provider Identifier (NPI) is 1477503993, issued by NPPES.
Does Dr. Gordon Williams accept Medicare assignment?
Yes. Dr. Gordon Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gordon Williams commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.