Karl Coyner, M.D.
NPI 1609861418 · Diagnostic Radiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Coyner, M.D. is a Diagnostic Radiology Physician provider in Boston, MA (NPI 1609861418).
Provider details
- NPI number
- 1609861418
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 211721 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
5,665 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 750 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 527 | $38 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 261 | $84 |
| Ct Scan of Upper Spine Without Contrast72125 | 234 | $46 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 220 | $82 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 191 | $21 |
Practice location
Mailing address
Additional practice locations (1)
- 55 Lake Ave NorthWorcester, MA 01655-0002Phone: (508) 334-3850
Registry dates
- Enumerated
- 2005-09-19
- Last updated
- 2024-03-22
- Certified
- 2024-03-22
Frequently asked questions
- What is Karl Coyner's NPI number?
- Karl Coyner's National Provider Identifier (NPI) is 1609861418, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Coyner's specialty?
- Karl Coyner is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Coyner located?
- Karl Coyner's practice location on file with NPPES is 75 Francis St, Boston, MA 02115-6110.
- What is Karl Coyner's phone number?
- The practice phone number listed in the NPPES registry for Karl Coyner is (617) 732-6291.
- Does Karl Coyner accept Medicare?
- Karl Coyner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Coyner's NPI active?
- Yes — Karl Coyner's NPI (1609861418) is active in the NPPES registry as of the last update on 2024-03-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.