Paul James Grenier, O.D.
Optometrist · Ann Arbor, MI
Paul James Grenier, O.D. is an optometrist with a practice address in Ann Arbor, Michigan, and NPI 1386608081, issued on Apr 12, 2006. Check the license (Michigan 4901004452, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Paul James Grenier
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 4901004452 MI
046-009510 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Wall St, Ann Arbor, MI 48105
- Phone
- (734) 764-4190
- Enumerated
- Apr 12, 2006
- Record last updated
- Mar 7, 2023
- Medicare enrollment
- Enrolled (PECOS I20090402000270); accepts Medicare assignment
- Medical or professional school
- Illinois College Of Optometry At Chicago, 2002
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,963 in Michigan → Look up another NPI →
Also registered at 1000 Wall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sofia Ahsanuddin, MDStudent in an Organized Health Care Education/Training Program1194573592
- Mariam Akinwale, MDNeurology Physician1306501291
- Mehriban AlizadaOphthalmology Physician1720970023
- Sejal Amin, M.D.Ophthalmology Physician1952628158
- Samuel Andorsky, MDOphthalmology Physician1881856672
- Erica Archer, M.D.Ophthalmology Physician1518227743
Verify Paul James Grenier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4901004452Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average optometrist in 2024
129 Medicare Part D claims for 49 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.
Most prescribed
- Restasis32 claims
- Erythromycin26 claims
- Latanoprost12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Regents OF The University OF MichiganAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Paul James Grenier among 1,963 optometrist records in Michigan
Paul James Grenier, O.D. is one of 1,963 optometrist records with a practice address in Michigan. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 58% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2002 · median 2009 among the 1,121 with a school on file
- Record last updated2023 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Michigan
There are 1,963 optometrist records in Michigan.
All 1,963 in Michigan → Every provider in Ann Arbor → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Abigail Cash, ODAnn Arbor, MI 481051093342560
- Sherry Day, ODAnn Arbor, MI 481051013061977
- Karen Deloss, O.D.Ann Arbor, MI 481051750533352
- Monika Dembinska, ODAnn Arbor, MI 481051023422722
- Cherie Farkash, ODAnn Arbor, MI 481051033121884
- Carlton Foster, O.D.Ann Arbor, MI 481051346233681
- Amy Lagina, O.D.Ann Arbor, MI 481051235241829
- Helios Leung, ODAnn Arbor, MI 481051366596223
Common questions
What is Paul James Grenier, O.D.'s NPI number?
Paul James Grenier, O.D.'s National Provider Identifier (NPI) is 1386608081, issued on Apr 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Paul James Grenier, O.D. located?
The NPPES record lists a practice address at 1000 Wall St, Ann Arbor, MI, 48105. Phone: (734) 764-4190. Providers update this record themselves, so call before visiting.
How can I verify Paul James Grenier, O.D.'s license?
NPPES lists Michigan license number 4901004452, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Paul James Grenier, O.D. prescribe under Medicare Part D?
In 2024, Paul James Grenier, O.D. had 129 Medicare Part D claims for 49 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.