William James Grenier, APRN, NP-C
Family Nurse Practitioner · Louisville, KY
William James Grenier, APRN, NP-C is a family nurse practitioner with a practice address in Louisville, Kentucky, and NPI 1154626521, issued on Jan 17, 2011. Check the license (Kentucky 3006776, as entered in NPPES) with the Kentucky board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William James Grenier
- Credential
- APRN, NP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 3006776 KY
9421762 FL
71006200A IN
5008544 NC
APRN.CNP.019811 OH
Self-reported in NPPES; status is on the state search - Practice location
- 10401 Linn Station RD Ste 100, Louisville, KY 40223
- Phone
- (502) 589-8600
- Enumerated
- Jan 17, 2011
- Record last updated
- Jul 13, 2023
- Fax
- (855) 632-8329
- Medicare enrollment
- Enrolled (PECOS I20260112001627); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,545 in Kentucky → Look up another NPI →
Also registered at 10401 Linn Station RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kimberly Hawkins, LMFTMarriage & Family Therapist1750772877
- Lorie HornerClinical Social Worker1225226673
- Valerie Hughes, LCSWClinical Social Worker1790026094
- Carolyn JollyClinical Social Worker1962206193
Verify William James Grenier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Kentucky board licenses this profession
Search for license 3006776Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average family nurse practitioner in 2024
888 Medicare Part D claims for 46 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium63 claims
- Losartan Potassium49 claims
- Lisinopril38 claims
- Amlodipine Besylate35 claims
- Albuterol Sulfate Hfa30 claims
- Hydrochlorothiazide28 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.
Industry payments in 2024: $158.95
3 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Impact Physician Group Massachusetts PLLCHolyoke, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William James Grenier among 5,545 family nurse practitioner records in Kentucky
William James Grenier, APRN, NP-C is one of 5,545 family nurse practitioner records with a practice address in Kentucky. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 17% of them.
- NPI issued2011 · 17% of these records are older, 80% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2008 · median 2018 among the 3,839 with a school on file
- Record last updated2023 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,321 family nurse practitioner records list a practice address in Louisville
They are 1,321 of the 21,891 NPPES records with a practice address in Louisville, and 5,545 family nurse practitioner records in Kentucky.
All 5,545 in Kentucky → Every provider in Louisville → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Mary Allen, ARNPLouisville, KY 402231912178781
- Autumn Allgeier, ARNPLouisville, KY 402231568601805
- Shawna BirdLouisville, KY 402231013290816
- Shelley Foord-Kelcey, ARNPLouisville, KY 402231780695221
- Megan Habich, APRNLouisville, KY 402231487940763
- Jennifer Hamilton, ARNPLouisville, KY 402231710289764
- Jill Johnson, DNP, APRN, FNP-BCLouisville, KY 402231871758904
- Theresa Oparah, FNPLouisville, KY 402231083732978
Common questions
What is William James Grenier, APRN, NP-C's NPI number?
William James Grenier, APRN, NP-C's National Provider Identifier (NPI) is 1154626521, issued on Jan 17, 2011. An NPI identifies a provider in billing; it is not a license.
Where is William James Grenier, APRN, NP-C located?
The NPPES record lists a practice address at 10401 Linn Station RD Ste 100, Louisville, KY, 40223. Phone: (502) 589-8600. Providers update this record themselves, so call before visiting.
How can I verify William James Grenier, APRN, NP-C's license?
NPPES lists Kentucky license number 3006776, as entered by the provider. Search the Kentucky board that licenses this profession; the NPPES record confirms identity only.
How much does William James Grenier, APRN, NP-C prescribe under Medicare Part D?
In 2024, William James Grenier, APRN, NP-C had 888 Medicare Part D claims for 46 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.