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Mark Fishman, M.D.
NPI 1487704425 · Internal Medicine Physician · Cambridge, MA
Mark Fishman, M.D. is a Internal Medicine Physician provider in Cambridge, MA (NPI 1487704425).
Provider details
- NPI number
- 1487704425
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 42783 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
Novartis Inst. for Biomed. Research
250 Massachusetts Ave
Cambridge, MA 02139
Phone: (617) 871-3400
Approximate (ZIP-level) locationGet directions
Mailing address
43 Kenwood Ave
Newton Center, MA 02459-1421
Registry dates
- Enumerated
- 2007-01-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Fishman's NPI number?
- Mark Fishman's National Provider Identifier (NPI) is 1487704425, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Fishman's specialty?
- Mark Fishman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Fishman located?
- Mark Fishman's practice location on file with NPPES is Novartis Inst. for Biomed. Research, Cambridge, MA 02139.
- What is Mark Fishman's phone number?
- The practice phone number listed in the NPPES registry for Mark Fishman is (617) 871-3400.
- Is Mark Fishman's NPI active?
- Yes — Mark Fishman's NPI (1487704425) 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.