IndividualActive
Jan Hillson, M.D.
NPI 1912930157 · Rheumatology Physician · Cambridge, MA
Jan Hillson, M.D. is a Rheumatology Physician provider in Cambridge, MA (NPI 1912930157).
Provider details
- NPI number
- 1912930157
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD00019230 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 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
1493 Cambridge St
Cambridge Health Alliance
Cambridge, MA 02139-1047
Phone: (617) 665-2300
Street-level locationGet directions
Mailing address
24 Whittier St
Cambridge, MA 02140-2606
Registry dates
- Enumerated
- 2006-07-09
- Last updated
- 2007-07-09
Frequently asked questions
- What is Jan Hillson's NPI number?
- Jan Hillson's National Provider Identifier (NPI) is 1912930157, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jan Hillson's specialty?
- Jan Hillson is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Jan Hillson located?
- Jan Hillson's practice location on file with NPPES is 1493 Cambridge St, Cambridge, MA 02139-1047.
- What is Jan Hillson's phone number?
- The practice phone number listed in the NPPES registry for Jan Hillson is (617) 665-2300.
- Is Jan Hillson's NPI active?
- Yes — Jan Hillson's NPI (1912930157) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.