Jerold S. Napier, MD
Nephrology Physician · Marquette, MI
Jerold S. Napier, MD is a nephrology physician with a practice address in Marquette, Michigan, and NPI 1376526707, issued on Nov 21, 2005. Check the license (Michigan 045805, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Jerold S. Napier
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 045805 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1414 W Fair Ave, Marquette, MI 49855
- Phone
- (906) 225-3910
- Enumerated
- Nov 21, 2005
- Record last updated
- Apr 21, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (906) 225-4529
- Medicaid ID
- 3138384 MI
- Medicare enrollment
- Enrolled (PECOS I20100317000952); accepts Medicare assignment
- Medical or professional school
- Mayo Medical School, 1979
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 376 in Michigan → Look up another NPI →
Also registered at 1414 W Fair Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie-Diane Armour, M.S.Genetic Counselor (M.S.)1639553381
- Daniel Arnold, MDHematology (Internal Medicine) Physician1124012661
- Stephen Bailey, PA-CPhysician Assistant1275643827
- Susan Balmer, MDInternal Medicine Physician1164640058
- John Bartlett, M.D.Internal Medicine Physician1821090994
- Eliza Bischof, PA-CPhysician Assistant1366101545
Verify Jerold S. Napier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 045805Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% more Medicare Part D claims than the average nephrology physician in 2024
2,295 Medicare Part D claims for 312 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 12 claims were for opioids.
Most prescribed
- Calcitriol206 claims
- Losartan Potassium125 claims
- Atorvastatin Calcium94 claims
- Allopurinol89 claims
- Amlodipine Besylate84 claims
- Bumetanide64 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: $324.64
14 payments; by number, the most common kind was food and beverage; the largest payer was Fresenius USA Marketing, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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
- Dlp Marquette Physician Practices IncMarquette, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jerold S. Napier among 376 nephrology physician records in Michigan
Jerold S. Napier, MD is one of 376 nephrology physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1979 · median 2001 among the 279 with a school on file
- Record last updated2009 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Michigan
There are 376 nephrology physician records in Michigan.
All 376 in Michigan → Every provider in Marquette → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Jon Himes, MDMarquette, MI 498551326022013
- Pierce Park, MDMarquette, MI 498551477607638
- Neil Umles, MDMarquette, MI 498551811450844
- Marjorie Funtanilla, MDIron Mountain, MI 498011730161555
- Adil Jadoon, MDIron Mountain, MI 498011588995807
- John Selden, MDIron Mountain, MI 498011891012621
- Mohammed Haider, M.D.Sault Sainte Marie, MI 497831760572002
- Gary Shaw, M.D.Petoskey, MI 497701013921154
Common questions
What is Jerold S. Napier, MD's NPI number?
Jerold S. Napier, MD's National Provider Identifier (NPI) is 1376526707, issued on Nov 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jerold S. Napier, MD located?
The NPPES record lists a practice address at 1414 W Fair Ave, Marquette, MI, 49855. Phone: (906) 225-3910. Providers update this record themselves, so call before visiting.
How can I verify Jerold S. Napier, MD's license?
NPPES lists Michigan license number 045805, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jerold S. Napier, MD prescribe under Medicare Part D?
In 2024, Jerold S. Napier, MD had 2,295 Medicare Part D claims for 312 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.