Doctor profile · Federal record
Dr. Anne Neilan, M.D., M.P.H
Internal Medicine Physician (CMS: Infectious Disease) · Pediatrics Physician · Boston, MA
- NPI 1104021641
- Accepts Medicare
- 19 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Massachusetts General Hospital, 55 Fruit Street
Boston, MA 02114
(617) 726-7782
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- February 16, 2012
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Massachusetts #L-232260 · Massachusetts #239799
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1104021641. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
63
Distinct HCPCS
2
Medicare allowed
$8,718
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 50 | 16 | $126 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 13 | 13 | $184 |
In context: peer comparison
Among 547 peers in this city , average services per provider: 81. This provider delivers 0.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
42
Patients
0
Total drug cost
$121,728
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Odefsey (Emtricitab/Rilpiviri/Tenof Ala) | Brand | 17 | 0 | $63,421 |
| Amoxicillin | Generic | 14 | 0 | $160 |
| Biktarvy (Bictegrav/Emtricit/Tenofov Ala) | Brand | 11 | 0 | $58,148 |
Frequently asked questions
What is Dr. Anne Neilan's medical specialty?
Dr. Anne Neilan practices Internal Medicine Physician in Boston, MA.
Where does Dr. Anne Neilan practice?
Dr. Anne Neilan practices at Massachusetts General Hospital, Boston, MA 02114. Office phone: 6177267782.
What is Dr. Anne Neilan's NPI?
Dr. Anne Neilan's National Provider Identifier (NPI) is 1104021641, issued by NPPES.
Does Dr. Anne Neilan accept Medicare assignment?
Yes. Dr. Anne Neilan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Anne Neilan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.