GlomerulonephritisKidney DiseasesKidney Glomerulus
Dr. Jerold S. Napier, MD
NPI1376526707PAC ID6800921735
- Medicare services, 2024
- 649
- Medicare patients, 2024
- 205
- Part D claims, 2024
- 2,295
- Publications
- 1
- Hospital affiliations
- 6
- Practice address
- 850 W Baraga Ave, Marquette, MI 49855
- Practice phone
- Call (906) 228-9440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Napier's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jerold S. Napier is a nephrologist in Marquette, Michigan
Dr. Napier practices at UP Health System - Marquette in Marquette, Michigan, part of Lifepoint Health.
Dr. Napier's NPI, 1376526707, was assigned on November 21, 2005. Dr. Napier graduated from Mayo Medical School in 1979. Dr. Napier holds Michigan license 045805.
NPI and contact details
- NPI
- 1376526707NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800921735
- NPI enumeration date
- November 21, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (906) 228-9440
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jerold S. Napier practices at UP Health System - Marquette in Marquette, Michigan
Dr. Napier's primary practice is UP Health System - Marquette, at 850 W Baraga Ave, Marquette, MI 49855 in Marquette County. The practice phone is (906) 228-9440.
- UP Health System - Marquette850 W Baraga Ave, Marquette, MI 49855 · Marquette CountyPhone(906) 228-9440
Source: Dmand AI Affiliation Data
Dr. Jerold S. Napier is affiliated with 8 sites of care and 1 medical group
Dr. Napier's primary practice is UP Health System - Marquette in Marquette, Michigan, part of Lifepoint Health. Dr. Napier is also affiliated with OSF St. Francis Hospital & Medical Group. The medical group on file is UP Medical Group, Marquette | Family Medicine. Dmand AI also links Dr. Napier to 4 more hospitals and 2 dialysis centers, each named with a free account.
OSF St. Francis Hospital & Medical GroupUP Medical Group, Marquette | Family Medicine4 hospitalsNames with a free account2 dialysis centersNames with a free account
See all 9 affiliations for Dr. NapierSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jerold S. Napier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Napier practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UP Health System - Marquette | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Napier practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Lifepoint Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jerold S. Napier is one of 310 nephrologists in Michigan
Nephrology is Dr. Napier's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Napier is licensed in Michigan.
Specialties and state licenses
- Nephrology, MichiganPrimary
Nephrologists near Dr. Napier
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
310nephrologists in Michigan
3nephrologists in Marquette
3nephrologists at UP Health System - MarquetteSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jerold S. Napier billed Medicare for 649 services in 2024
CMS data shows 649 Medicare services from Dr. Napier across 8 procedure codes in 2024, for 205 Medicare patients. Medicare paid $118,478 for them. Every service was in an office.
Medicare services, 2024649
Medicare patients205
Paid by Medicare$118,478
Procedure codes8
Dr. Napier's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2882024: 37229%
- Office and hospital visits
- 2023: 2612024: 2652%
- Other services
- 2023: 02024: 12
Dr. Napier compared with the Michigan median for nephrologists, 2024
- Dr. Napier
- Michigan median
- Medicare services
- 649vs 84924% below
- Medicare patients
- 205vs 26924% below
- Part D claims
- 1,844vs 5743.2 times
Medians across 310 nephrologists in Michigan with Dmand AI profiles that report each measure.
Dr. Napier's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Napier?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Napier and other nephrologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jerold S. Napier treated 205 Medicare patients in 2024, average age 72
CMS counts 205 Medicare patients who saw Dr. Napier in 2024. The largest group is 65 to 74, with 83 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 14% are also on Medicaid. Their average risk score is 3.39, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Napier's median patient age at 73, with 45% women.
Medicare patients, 2024205
Average age72
Average risk score3.39
Also on Medicaid14%
Dr. Napier's Medicare patients by age, 2024
Dr. Napier's Medicare patients by sex, 2024
- Women9948%
- Men10652%
Chronic conditions among Dr. Napier's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes48%
- Ischemic heart disease42%
- Arthritis39%
- Heart failure37%
- Atrial fibrillation32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Napier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jerold S. Napier wrote 2,295 Medicare Part D claims in 2024
In 2024, Dr. Napier wrote 2,295 Medicare Part D claims for 312 patients. 86% of them were for generic drugs. CMS names the drug for 1,844 of them, across 52 drugs with 11 or more claims each, at $249,546 in total drug cost. In 2023, CMS named 2,789 claims across 60 drugs.
Part D claims, 20242,295
Drugs named by CMS52
Total drug cost$249,546
Part D patients312
Dr. Napier's Part D claims by kind of drug, 2024
- Generic1,984 claims86%
- Brand-name263 claims11%
- Other48 claims2%
Dr. Napier's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Napier's Part D claims, 2024
- Opioids1%12 of 2,295 claims
- Antibiotics1%20 of 2,295 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,7892024: 1,84434%
Drugs named by CMS: 52 in 2024, 60 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Jerold S. Napier offers telehealth to Medicare patients
Dr. Napier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Napier as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find nephrologists like Dr. Napier by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Jerold S. Napier has 1 publication on record
Dmand AI links 1 paper to Dr. Napier in 2022.
Papers1
Recent publications by Dr. Napier
See who Dr. Napier researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Napier works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jerold S. Napier received $5,945 in industry payments from 2016 to 2025
CMS Open Payments shows 378 general payments to Dr. Napier from 39 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 94% of the total. Genentech, Inc. paid the most, $547.
General payments to Dr. Napier by program year, 2016 to 2025
General payments to Dr. Napier by kind, 2016 to 2025
$5.9Kin total
- Food and beverage$5,57494%
- Education$3716%
Companies that paid Dr. Napier the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jerold S. Napier graduated from Mayo Medical School
Dr. Napier graduated from Mayo Medical School in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jerold S. Napier's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jerold S. Napier
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jerold S. Napier's NPI number?
Dr. Jerold S. Napier's NPI number is 1376526707. It was assigned on November 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Jerold S. Napier?
Dr. Jerold S. Napier is a nephrologist in Marquette, Michigan. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Jerold S. Napier practice?
Dr. Napier practices at 850 W Baraga Ave, Marquette, MI 49855. Dr. Napier's primary practice is UP Health System - Marquette in Marquette, Michigan, part of Lifepoint Health. Dmand AI also links Dr. Napier to 4 hospitals and 2 dialysis centers.
What is Dr. Jerold S. Napier's office phone number?
The practice phone on file for Dr. Napier is (906) 228-9440.
What is Dr. Jerold S. Napier's medical license number?
Dr. Napier holds Michigan license 045805.
Which hospitals is Dr. Jerold S. Napier affiliated with?
Dr. Napier practices at UP Health System - Marquette in Marquette, Michigan. Dr. Napier is also affiliated with OSF St. Francis Hospital & Medical Group. Dmand AI links Dr. Napier to 4 more hospitals.
What medical group is Dr. Jerold S. Napier part of?
Dr. Napier is linked to UP Medical Group, Marquette | Family Medicine.
Does Dr. Jerold S. Napier accept Medicare?
Yes. CMS data shows Dr. Napier billed Medicare for 649 services in 2024, and Dr. Napier accepts Medicare assignment.
Does Dr. Jerold S. Napier offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Napier as offering telehealth services.
How many Medicare patients does Dr. Jerold S. Napier see?
CMS counts 205 Medicare patients who saw Dr. Napier in 2024, with an average age of 72.
Show 6 more questionsShow fewer questions
What services does Dr. Jerold S. Napier bill to Medicare?
In 2024, Dr. Napier's most billed Medicare services were dialysis (90960), office visit, established patient (99214) and dialysis (90966).
Where did Dr. Jerold S. Napier go to medical school?
Dr. Napier graduated from Mayo Medical School in 1979.
What drugs does Dr. Jerold S. Napier prescribe most?
In 2024 Medicare Part D data, Dr. Napier's most prescribed drugs by claims were Calcitriol, Losartan Potassium and Atorvastatin Calcium.
Has Dr. Jerold S. Napier received payments from drug or device companies?
CMS Open Payments shows $5,945 in general payments to Dr. Napier from 39 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Jerold S. Napier been practicing?
Dr. Napier graduated from medical school in 1979, 47 years ago.
Does Dr. Jerold S. Napier do research?
Dmand AI links 1 publication to Dr. Napier.
Selling to nephrology practices?
See nephrologists in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card