Antonio Giannelli, P.A.C.
NPI 1841369642 · Physician Assistant · Lansing, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Antonio Giannelli, P.A.C. is a Physician Assistant provider in Lansing, MI (NPI 1841369642).
Provider details
- NPI number
- 1841369642
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.C.
- Sex
- Male
- Sole proprietor
- No
- License
- 1821562 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing 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
19 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 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 633 | 194 |
| Methotrexate Sodiumbrand: Methotrexate | 498 | 153 |
| Prednisone | 306 | 147 |
| Meloxicam | 183 | 58 |
| Tramadol Hcl | 177 | 38 |
| Leflunomide | 176 | 51 |
| Gabapentin | 122 | 33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,945 across 218 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
- 2006-11-07
- Last updated
- 2021-05-04
- Certified
- 2021-05-04
Frequently asked questions
- What is Antonio Giannelli's NPI number?
- Antonio Giannelli's National Provider Identifier (NPI) is 1841369642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Antonio Giannelli's specialty?
- Antonio Giannelli is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Antonio Giannelli located?
- Antonio Giannelli's practice location on file with NPPES is 4052 Legacy Pkwy, Lansing, MI 48911-4285.
- What is Antonio Giannelli's phone number?
- The practice phone number listed in the NPPES registry for Antonio Giannelli is (517) 272-9700.
- Does Antonio Giannelli accept Medicare?
- Antonio Giannelli is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Antonio Giannelli's NPI active?
- Yes — Antonio Giannelli's NPI (1841369642) is active in the NPPES registry as of the last update on 2021-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.