IndividualActive
John Herendeen, MD
NPI 1104406834 · Neurological Surgery Physician · Boston, MA
John Herendeen, MD is a Neurological Surgery Physician provider in Boston, MA (NPI 1104406834).
Provider details
- NPI number
- 1104406834
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 289703 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Established profile(62/100 index)
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
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
800 Washington St
Boston, MA 02111-1552
Phone: (617) 636-5000
Street-level locationGet directions
Mailing address
800 Washington St
Boston, MA 02111-1552
Registry dates
- Enumerated
- 2021-04-08
- Last updated
- 2021-06-21
- Certified
- 2021-06-21
Frequently asked questions
- What is John Herendeen's NPI number?
- John Herendeen's National Provider Identifier (NPI) is 1104406834, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Herendeen's specialty?
- John Herendeen is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Herendeen located?
- John Herendeen's practice location on file with NPPES is 800 Washington St, Boston, MA 02111-1552.
- What is John Herendeen's phone number?
- The practice phone number listed in the NPPES registry for John Herendeen is (617) 636-5000.
- Is John Herendeen's NPI active?
- Yes — John Herendeen's NPI (1104406834) is active in the NPPES registry as of the last update on 2021-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.