Nathaniel Fessehaie, MD
NPI 1114506888 · Internal Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathaniel Fessehaie, MD is a Internal Medicine Physician provider in Boston, MA (NPI 1114506888).
Provider details
- NPI number
- 1114506888
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 1022884 (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
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 55 Fruit StBoston, MA 02114-2621Phone: (617) 726-2000
Registry dates
- Enumerated
- 2021-04-07
- Last updated
- 2025-04-28
- Certified
- 2025-04-28
Frequently asked questions
- What is Nathaniel Fessehaie's NPI number?
- Nathaniel Fessehaie's National Provider Identifier (NPI) is 1114506888, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Fessehaie's specialty?
- Nathaniel Fessehaie is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathaniel Fessehaie located?
- Nathaniel Fessehaie's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6106.
- What is Nathaniel Fessehaie's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Fessehaie is (617) 732-5775.
- Does Nathaniel Fessehaie accept Medicare?
- Nathaniel Fessehaie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathaniel Fessehaie's NPI active?
- Yes — Nathaniel Fessehaie's NPI (1114506888) is active in the NPPES registry as of the last update on 2025-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.