Gregory Blackman, M.D.
NPI 1811941032 · Diagnostic Radiology Physician · Springfield, MA
Enrolled with Medicare as Practitioner - Interventional Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Blackman, M.D. is a Diagnostic Radiology Physician provider in Springfield, MA (NPI 1811941032).
Provider details
- NPI number
- 1811941032
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 76232 (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 tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,836 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 368 | $10 |
| Screening 3d Breast Mammography77063 | 127 | $29 |
| Screening Mammography77067 | 127 | $37 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 118 | $12 |
| X-Ray of Chest, 1 View71045 | 109 | $9 |
| Review By Radiologist of Ct Guidance for Needle Placement77012 | 50 | $71 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$126 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-20
- Last updated
- 2025-09-11
Frequently asked questions
- What is Gregory Blackman's NPI number?
- Gregory Blackman's National Provider Identifier (NPI) is 1811941032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Blackman's specialty?
- Gregory Blackman is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Blackman located?
- Gregory Blackman's practice location on file with NPPES is 271 Carew St, Springfield, MA 01104-2377.
- What is Gregory Blackman's phone number?
- The practice phone number listed in the NPPES registry for Gregory Blackman is (413) 748-9200.
- Does Gregory Blackman accept Medicare?
- Gregory Blackman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Blackman's NPI active?
- Yes — Gregory Blackman's NPI (1811941032) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.