Doctor profile · Federal record
Dr. Nancy Wei, M.D.
Internal Medicine Physician (CMS: Endocrinology) · Boston, MA
- NPI 1083740732
- Accepts Medicare
- 20 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Massachusetts General Hospital, 55 Fruit Street
Boston, MA 02114
(617) 726-4900
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 2006 — 20 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #L-228187
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083740732. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
307
Distinct HCPCS
6
Medicare allowed
$27,304
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 148 | 96 | $125 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 62 | 31 | $53 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 56 | 34 | $37 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 17 | 14 | $194 | |
36415 |
Insertion of needle into vein for collection of blood sample | 13 | 13 | $8 | |
83036 |
Hemoglobin a1c level | 11 | 11 | $10 |
In context: peer comparison
Among 547 peers in this city , average services per provider: 81. This provider delivers 3.8× the peer median.Open Payments
Industry payments received
All-time total
$30
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, Inc. | 1 | $30.44 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
682
Patients
188
Total drug cost
$702,047
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trulicity (Dulaglutide) | Brand | 143 | 40 | $271,820 |
| Metformin Hcl | Generic | 76 | 26 | $1,099 |
| Jardiance (Empagliflozin) | Brand | 70 | 23 | $106,154 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 66 | 25 | $54,360 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 56 | 15 | $1,205 |
| Tresiba Flextouch U-200 (Insulin Degludec) | Brand | 34 | 14 | $89,802 |
| Novolog Flexpen (Insulin Aspart) | Brand | 33 | 17 | $45,812 |
| Tresiba Flextouch U-100 (Insulin Degludec) | Brand | 33 | 15 | $25,373 |
| Basaglar Kwikpen U-100 (Insulin Glargine,hum.Rec.Anlog) | Brand | 32 | 0 | $21,304 |
| Ozempic (Semaglutide) | Brand | 30 | 0 | $38,954 |
Hospital affiliations
Frequently asked questions
What is Dr. Nancy Wei's medical specialty?
Dr. Nancy Wei practices Internal Medicine Physician in Boston, MA.
Where does Dr. Nancy Wei practice?
Dr. Nancy Wei practices at Massachusetts General Hospital, Boston, MA 02114. Office phone: 6177264900.
What is Dr. Nancy Wei's NPI?
Dr. Nancy Wei's National Provider Identifier (NPI) is 1083740732, issued by NPPES.
Does Dr. Nancy Wei accept Medicare assignment?
Yes. Dr. Nancy Wei accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nancy Wei commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251). Source: CMS Medicare Physician & Other Practitioners file.