Melvin Chalfen, M.D.
NPI 1215052022 · Internal Medicine Physician · Cambridge, MA
Melvin Chalfen, M.D. is a Internal Medicine Physician provider in Cambridge, MA (NPI 1215052022).
Provider details
- NPI number
- 1215052022
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 24555 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Melvin Chalfen's NPI number?
- Melvin Chalfen's National Provider Identifier (NPI) is 1215052022, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melvin Chalfen's specialty?
- Melvin Chalfen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Melvin Chalfen located?
- Melvin Chalfen's practice location on file with NPPES is Cambridge Hospital, Cambridge, MA 02139.
- What is Melvin Chalfen's phone number?
- The practice phone number listed in the NPPES registry for Melvin Chalfen is (617) 665-3820.
- Is Melvin Chalfen's NPI active?
- Yes — Melvin Chalfen's NPI (1215052022) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.