Marc Stuart Arnkoff, M.D.
Urology Physician · Southfield, MI
Marc Stuart Arnkoff, M.D. is a urology physician with a practice address in Southfield, Michigan, and NPI 1144200270, issued on Jan 17, 2006. Check the license (Michigan 4301030781, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Marc Stuart Arnkoff
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License numbers
- 4301030781 MI
01094465A IN
Self-reported in NPPES; status is on the state search - Practice location
- 26400 W 12 Mile RD, Southfield, MI 48034
- Phone
- (248) 569-3009
- Enumerated
- Jan 17, 2006
- Record last updated
- Oct 21, 2025
- Fax
- (248) 569-0670
- Medicaid IDs
- 300116410 IN
109101910 MI - Medicare enrollment
- Enrolled (PECOS I20250912003379); accepts Medicare assignment
- Medical or professional school
- Chicago College Of Medicine And Surgery, 1971
- Entity
- Type 1 · individual
8 nearest urology physician records → All 446 in Michigan → Look up another NPI →
Also registered at 26400 W 12 Mile RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Awoniyi Awonuga, MDObstetrics & Gynecology Physician1437156064
- Jay Berman, MDGynecology Physician1710924238
- Lawrence Eilender, MDNeurology Physician1366445173
Verify Marc Stuart Arnkoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301030781Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average urology physician in 2024
478 Medicare Part D claims for 135 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl181 claims
- Dutasteride89 claims
- Finasteride81 claims
- Ciprofloxacin Hcl32 claims
- Sulfamethoxazole-Trimethoprim19 claims
- Cephalexin11 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: $960.16
9 payments; by number, the most common kind was food and beverage; the largest payer was Great Lakes Medical Services, LLC. The 9,340 providers of this specialty with any payment received $3,800.04 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 4 group practices
- Baptist Health Medical Group IncCorbin, KY
- Bullhead City Clinic CorpBullhead City, AZ
- Michigan Healthcare Professionals PCFarmington Hills, MI
- Saint Joseph Regional Medical Center IncMishawaka, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc Stuart Arnkoff among 446 urology physician records in Michigan
Marc Stuart Arnkoff, M.D. is one of 446 urology 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 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 49% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1971 · median 2004 among the 297 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Michigan
There are 446 urology physician records in Michigan.
All 446 in Michigan → Every provider in Southfield → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Kevin Carocci, DOClinton Twp, MI 480351790247351
- Evan Begun, DOClinton Twp, MI 480361972965085
- Connor Ray, M.D.Clinton Township, MI 480361306472188
- Asia Matthew-Onabanjo, MD, PHDClinton Township, MI 480381124600846
- Jared Davis, D.O.Mount Clemens, MI 480431114459476
- Andrew Hall, DOMount Clemens, MI 480431083305429
- Mark Hammel, MDBeverly Hills, MI 480251528059318
- Katie Rosen, DOMacomb, MI 480441548600984
Common questions
What is Marc Stuart Arnkoff, M.D.'s NPI number?
Marc Stuart Arnkoff, M.D.'s National Provider Identifier (NPI) is 1144200270, issued on Jan 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc Stuart Arnkoff, M.D. located?
The NPPES record lists a practice address at 26400 W 12 Mile RD, Southfield, MI, 48034. Phone: (248) 569-3009. Providers update this record themselves, so call before visiting.
How can I verify Marc Stuart Arnkoff, M.D.'s license?
NPPES lists Michigan license number 4301030781, 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 Marc Stuart Arnkoff, M.D. prescribe under Medicare Part D?
In 2024, Marc Stuart Arnkoff, M.D. had 478 Medicare Part D claims for 135 beneficiaries; the average among urology physician prescribers was 1,340. 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.