John Parker, M.D.
NPI 1992759765 · Nuclear Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Parker, M.D. is a Nuclear Medicine Physician provider in Boston, MA (NPI 1992759765).
Provider details
- NPI number
- 1992759765
- Entity type
- Individual
- Primary specialty
- Nuclear Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 35911 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,010 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Nuclear Medicine Study From Skull Base to Mid-Thigh With Ct Scan78815 | 415 | $116 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 254 | $78 |
| Nuclear Medicine Study Whole Body With Ct Scan78816 | 96 | $118 |
| Nuclear Medicine Study, Spect Imaging With Concurrent Ct Scan, 1 Area Or Single Acquisition, Single Day Imaging78830 | 60 | $69 |
| Nuclear Medicine Study of Lung Ventilation and Circulation78582 | 35 | $51 |
| Nuclear Medicine Study of Stomach to Assess Emptying78264 | 32 | $38 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Parker's NPI number?
- John Parker's National Provider Identifier (NPI) is 1992759765, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Parker's specialty?
- John Parker is listed in the NPPES registry with a primary specialty of Nuclear Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Parker located?
- John Parker's practice location on file with NPPES is 330 Brookline Ave, Boston, MA 02215-5400.
- What is John Parker's phone number?
- The practice phone number listed in the NPPES registry for John Parker is (617) 667-5250.
- Does John Parker accept Medicare?
- John Parker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Parker's NPI active?
- Yes — John Parker's NPI (1992759765) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.