Stephen James Arntz, M.D.
Family Medicine Physician · Jackson, MI
Stephen James Arntz, M.D. is a family medicine physician with a practice address in Jackson, Michigan, and NPI 1528088614, issued on Jul 20, 2006. Check the license (Michigan 4301066392, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Stephen James Arntz
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4301066392 MI
Self-reported in NPPES; status is on the state search - Practice location
- 214 N. West Ave, Jackson, MI 49201
- Phone
- (517) 784-9189
- Enumerated
- Jul 20, 2006
- Record last updated
- Mar 6, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (517) 784-9657
- Medicaid ID
- 4422302 MI
- Medicare enrollment
- Enrolled (PECOS I20100914000696); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 214 N. West Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Channing Smith, M.D.Family Medicine Physician1699795781
Verify Stephen James Arntz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301066392Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.0 times the Medicare Part D claims of the average family medicine physician in 2024
14,179 Medicare Part D claims for 827 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. 1,287 claims were for opioids.
Most prescribed
- Atorvastatin Calcium712 claims
- Hydrocodone-Acetaminophen588 claims
- Amlodipine Besylate489 claims
- Omeprazole466 claims
- Lisinopril422 claims
- Levothyroxine Sodium396 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: $2,673.93
140 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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 one group practice
- Matt T Rosenberg PCJackson, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen James Arntz among 6,013 family medicine physician records in Michigan
Stephen James Arntz, 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 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 56% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1995 · median 2008 among the 3,493 with a school on file
- Record last updated2015 · 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
- Cheryl Colletti, DOJackson, MI 492011871531376
- Tywanda Crawford-Johnson, M.D.Jackson, MI 492011245430693
- Dana Dewitt, DOJackson, MI 492011124016639
- Timothy Friedman, DOJackson, MI 492011629414412
- Gary Lynd, DOJackson, MI 492011235127184
- David Munro, M.D.Jackson, MI 492011124093430
- Navira Rizwan, M.DJackson, MI 492011184817413
- Robert Robertson, DOJackson, MI 492011336137892
Common questions
What is Stephen James Arntz, M.D.'s NPI number?
Stephen James Arntz, M.D.'s National Provider Identifier (NPI) is 1528088614, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen James Arntz, M.D. located?
The NPPES record lists a practice address at 214 N. West Ave, Jackson, MI, 49201. Phone: (517) 784-9189. Providers update this record themselves, so call before visiting.
How can I verify Stephen James Arntz, M.D.'s license?
NPPES lists Michigan license number 4301066392, 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 Stephen James Arntz, M.D. prescribe under Medicare Part D?
In 2024, Stephen James Arntz, M.D. had 14,179 Medicare Part D claims for 827 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.