Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
DR. CHRISTOPHER F CALAHAN, MD
ActiveDR. CHRISTOPHER F CALAHAN, MD is a Internal Medicine healthcare provider located in BOSTON, Massachusetts. NPI 1558821983 is currently active in the NPPES registry. Verify at CMS.
Internal Medicine · BOSTON, MA
Registration Details
- NPI Number
- 1558821983
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Mar 21, 2019 (7.4283412894231 yrs)
- Last Updated
- Dec 29, 2025
- Licenses
-
1018450 (MA)1018450 (MA)
Practice Information
- Address
-
55 FRUIT STBOSTON, MA, 021142696Browse MA providers · Browse ZIP 02114
- Phone
- 6176438245
- Primary Specialty
-
Internal Medicine
207R00000X
- Additional Specialty
- Internal Medicine
Other Internal Medicine Providers in BOSTON, MA
| Name | Credential | NPI |
|---|---|---|
| DR. JAN LORRAINE COOK | M.D. | 1437152139 |
| DR. LORI M BALESTRERO | MD | 1750384046 |
| DR. JAMES STEWART EVANS | MD | 1215939533 |
| RENU SONI | M.D. | 1649276585 |
| VIRGINIA S BARROW | M.D. | 1639175466 |
| DR. TIMOTHY S NAIMI | MD, MPH | 1679572291 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.