John Monahan, MD
NPI 1679986665 · Anatomic Pathology & Clinical Pathology Physician · Boston, MA
John Monahan, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Boston, MA (NPI 1679986665).
Provider details
- NPI number
- 1679986665
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- L-260543 (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
12 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
- 2014-06-06
- Last updated
- 2014-06-06
Frequently asked questions
- What is John Monahan's NPI number?
- John Monahan's National Provider Identifier (NPI) is 1679986665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Monahan's specialty?
- John Monahan is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is John Monahan located?
- John Monahan's practice location on file with NPPES is Massachusetts General Hospital, Boston, MA 02114.
- What is John Monahan's phone number?
- The practice phone number listed in the NPPES registry for John Monahan is (617) 726-2967.
- Is John Monahan's NPI active?
- Yes — John Monahan's NPI (1679986665) is active in the NPPES registry as of the last update on 2014-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.