Nicholas Maximillian Kielhorn, M.D.
Family Medicine Physician · Jackson, MI
Nicholas Maximillian Kielhorn, M.D. is a family medicine physician with a practice address in Jackson, Michigan, and NPI 1821240128, issued on Oct 17, 2008. Check the license (Michigan 4301090658, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Nicholas Maximillian Kielhorn
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4301090658 MI
Self-reported in NPPES; status is on the state search - Practice location
- 801 Rosehill RD, Jackson, MI 49202
- Phone
- (517) 212-2008
- Enumerated
- Oct 17, 2008
- Record last updated
- Nov 15, 2023
- Medicare enrollment
- Enrolled (PECOS I20220604000362); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Verify Nicholas Maximillian Kielhorn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301090658Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average family medicine physician in 2024
10,834 Medicare Part D claims for 877 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 69 claims were for opioids.
Most prescribed
- Levothyroxine Sodium629 claims
- Eliquis357 claims
- Omeprazole344 claims
- Furosemide329 claims
- Atorvastatin Calcium328 claims
- Tamsulosin Hcl309 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: $20.59
1 payment: food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 55,478 providers of this specialty with any payment received $902.55 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 5 group practices
- Careline Pin100 LLCCarmel, IN
- Careline Poh100 LLCMaumee, OH
- Northview Health Specialists, PLLCGrand Rapids, MI
- Northview Medical House Calls PLCSaginaw, MI
- Powerback Rehabilitation LLCJackson, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Maximillian Kielhorn among 6,013 family medicine physician records in Michigan
Nicholas Maximillian Kielhorn, M.D. is one of 6,013 family medicine physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 46% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2007 · median 2008 among the 3,493 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
62 family medicine physician records list a practice address in Jackson
They are 62 of the 3,310 NPPES records with a practice address in Jackson, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Jackson → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Brian Adamczyk, M.D.Jackson, MI 492021205856390
- Shana Ageloff-Kupetz, MDJackson, MI 492021437385382
- Roger Bloomer, MDJackson, MI 492021235196486
- Michael Burgess, D.O.Jackson, MI 492021467472555
- Gail Burke, DO, MAJackson, MI 492021710983309
- Michael Collins, M.D.Jackson, MI 492021265846042
- Athar Ghannam, MDJackson, MI 492021295351500
- Robert Israel, M.D.Jackson, MI 492021083688261
Common questions
What is Nicholas Maximillian Kielhorn, M.D.'s NPI number?
Nicholas Maximillian Kielhorn, M.D.'s National Provider Identifier (NPI) is 1821240128, issued on Oct 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Maximillian Kielhorn, M.D. located?
The NPPES record lists a practice address at 801 Rosehill RD, Jackson, MI, 49202. Phone: (517) 212-2008. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Maximillian Kielhorn, M.D.'s license?
NPPES lists Michigan license number 4301090658, 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 Nicholas Maximillian Kielhorn, M.D. prescribe under Medicare Part D?
In 2024, Nicholas Maximillian Kielhorn, M.D. had 10,834 Medicare Part D claims for 877 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.