Doctor profile · Federal record
Dr. Nina Chalfin, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Hospitalist Physician · Boston, MA
- NPI 1902836661
- Accepts Medicare
- 38 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
75 Francis St
Boston, MA 021156110
(617) 732-5500
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- November 10, 2020
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #155856
- Medicaid
- MA #0128937
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902836661. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
461
Distinct HCPCS
4
Medicare allowed
$47,468
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 194 | 90 | $84 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 165 | 59 | $126 | |
99238 |
Hospital discharge day management, 30 minutes or less | 74 | 74 | $87 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 28 | 28 | $138 |
In context: peer comparison
Among 547 peers in this city , average services per provider: 81. This provider delivers 5.7× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Nina Chalfin's medical specialty?
Dr. Nina Chalfin practices Internal Medicine Physician in Boston, MA.
Where does Dr. Nina Chalfin practice?
Dr. Nina Chalfin practices at 75 Francis St, Boston, MA 021156110. Office phone: 6177325500.
What is Dr. Nina Chalfin's NPI?
Dr. Nina Chalfin's National Provider Identifier (NPI) is 1902836661, issued by NPPES.
Does Dr. Nina Chalfin accept Medicare assignment?
Yes. Dr. Nina Chalfin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nina Chalfin commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.