John Dekker, MD, PHD
NPI 1578722104 · Anatomic Pathology & Clinical Pathology Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Dekker, MD, PHD is a Anatomic Pathology & Clinical Pathology Physician provider in Boston, MA (NPI 1578722104).
Provider details
- NPI number
- 1578722104
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- L-235948 (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
18 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
- 2008-06-09
- Last updated
- 2008-06-09
Frequently asked questions
- What is John Dekker's NPI number?
- John Dekker's National Provider Identifier (NPI) is 1578722104, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Dekker's specialty?
- John Dekker is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is John Dekker located?
- John Dekker's practice location on file with NPPES is Massachusetts General Hospital, Boston, MA 02114.
- What is John Dekker's phone number?
- The practice phone number listed in the NPPES registry for John Dekker is (617) 726-2967.
- Does John Dekker accept Medicare?
- John Dekker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Dekker's NPI active?
- Yes — John Dekker's NPI (1578722104) is active in the NPPES registry as of the last update on 2008-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.