Ellison J. Timmer, N.P.
Family Nurse Practitioner · Holland, MI
Ellison J. Timmer, N.P. is a family nurse practitioner with a practice address in Holland, Michigan, and NPI 1982976304, issued on Feb 1, 2012. Check the license (Michigan 4704260596, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellison J. Timmer
- Credential
- N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 4704260596 MI
Self-reported in NPPES; status is on the state search - Practice location
- 12460 Riley St, Holland, MI 49424
- Phone
- (616) 399-6500
- Enumerated
- Feb 1, 2012
- Record last updated
- Mar 13, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (616) 399-1908
- Medicare enrollment
- Enrolled (PECOS I20120417000061); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,356 in Michigan → Look up another NPI →
Also registered at 12460 Riley St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christina Houck-Smith, MSN RN FNP-CFamily Nurse Practitioner1639733868
Verify Ellison J. Timmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 4704260596Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average family nurse practitioner in 2024
485 Medicare Part D claims for 170 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 74 claims were for opioids.
Most prescribed
- Anastrozole57 claims
- Hydrocodone-Acetaminophen31 claims
- Prednisone29 claims
- Acyclovir26 claims
- Tamsulosin Hcl25 claims
- Tramadol Hcl22 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 89.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $688.17
31 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. 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
- Cancer And Hematology Centers OF Western MI, P.C.Holland, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ellison J. Timmer among 5,356 family nurse practitioner records in Michigan
Ellison J. Timmer, N.P. is one of 5,356 family nurse practitioner records with a practice address in Michigan. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 17% of them.
- NPI issued2012 · 17% of these records are older, 81% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2011 · median 2019 among the 3,254 with a school on file
- Record last updated2020 · 40% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 family nurse practitioner records list a practice address in Holland
They are 49 of the 2,124 NPPES records with a practice address in Holland, and 5,356 family nurse practitioner records in Michigan.
All 5,356 in Michigan → Every provider in Holland → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Jenny Berry, NPHolland, MI 494241629222401
- Hannah Clark, NPHolland, MI 494241245614726
- Joni Dehaan, NPHolland, MI 494241932433828
- Roberta Dischinger-Smedes, MSN, APRN, BC, FNPHolland, MI 494241750578407
- Laura Gerencer, FNP-BCHolland, MI 494241013429323
- Amberly Pinkleton, NPHolland, MI 494241962906123
- Sara PostHolland, MI 494241205361854
- Lauren Stouffer, APRNHolland, MI 494241407119878
Common questions
What is Ellison J. Timmer, N.P.'s NPI number?
Ellison J. Timmer, N.P.'s National Provider Identifier (NPI) is 1982976304, issued on Feb 1, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Ellison J. Timmer, N.P. located?
The NPPES record lists a practice address at 12460 Riley St, Holland, MI, 49424. Phone: (616) 399-6500. Providers update this record themselves, so call before visiting.
How can I verify Ellison J. Timmer, N.P.'s license?
NPPES lists Michigan license number 4704260596, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Ellison J. Timmer, N.P. prescribe under Medicare Part D?
In 2024, Ellison J. Timmer, N.P. had 485 Medicare Part D claims for 170 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Ellison J. Timmer, N.P.'s MIPS final score?
The 2023 MIPS final score is 89.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.