Gregory Blackman, PAC, ATC
NPI 1356897581 · Surgical Physician Assistant · Gardner, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Blackman, PAC, ATC is a Surgical Physician Assistant provider in Gardner, MA (NPI 1356897581).
Provider details
- NPI number
- 1356897581
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PAC, ATC
- Sex
- Male
- Sole proprietor
- No
- License
- PA100402 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 147 | 142 |
| Cephalexin | 98 | 93 |
| Celecoxib | 73 | 64 |
| Ondansetron Hcl | 39 | 39 |
| Tramadol Hcl | 33 | 31 |
| Apixabanbrand: Eliquis | 28 | 27 |
| Meloxicam | 26 | 25 |
| Doxycycline Hyclate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$84 across 2 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
- 2016-08-28
- Last updated
- 2025-12-14
- Certified
- 2025-12-14
Frequently asked questions
- What is Gregory Blackman's NPI number?
- Gregory Blackman's National Provider Identifier (NPI) is 1356897581, 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 Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gregory Blackman located?
- Gregory Blackman's practice location on file with NPPES is 250 Green St, Gardner, MA 01440-1396.
- What is Gregory Blackman's phone number?
- The practice phone number listed in the NPPES registry for Gregory Blackman is (978) 632-0800.
- 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 (1356897581) is active in the NPPES registry as of the last update on 2025-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.