Dr. James S. Stepanski, DO

  • Ann Arbor, MI
  • Family medicine physician
NPI1669462974
Medicare services, 2022
1,289
Part D claims, 2024
845
Industry payments
$12,075
Affiliated sites
1
Medical group
1
Practice address
1500 E Medical Center Dr, Ann Arbor, MI 48109
Practice phone
Call (734) 936-4000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

University Hospital in Ann Arbor

Ann Arbor, Michigan

See all 3 affiliations

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Dr. James S. Stepanski is a family medicine physician in Ann Arbor, Michigan

Dr. Stepanski practices at University Hospital in Ann Arbor in Ann Arbor, Michigan.

Dr. Stepanski's NPI, 1669462974, was assigned on October 27, 2005. Dr. Stepanski graduated from Michigan College of Medicine and Surgery in 1988. Dr. Stepanski holds Michigan license JS010360.

NPI and contact details
NPI enumeration date
October 27, 2005
NPI status
Active
Practice phone
(734) 936-4000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. James S. Stepanski practices at University Hospital in Ann Arbor in Ann Arbor, Michigan

Dr. Stepanski's primary practice is University Hospital in Ann Arbor, at 1500 E Medical Center Dr, Ann Arbor, MI 48109 in Washtenaw County. The practice phone is (734) 936-4000.

  • University Hospital in Ann Arbor
    1500 E Medical Center Dr, Ann Arbor, MI 48109 · Washtenaw CountyPhone(734) 936-4000

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. James S. Stepanski is affiliated with 2 sites of care and 1 medical group

Dr. Stepanski's primary practice is University Hospital in Ann Arbor in Ann Arbor, Michigan. The medical group on file is Walton Medical, P.C. Dmand AI also links Dr. Stepanski to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Stepanski

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. James S. Stepanski's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stepanski practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
University Hospital in Ann ArborAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. James S. Stepanski is one of 4,931 family medicine physicians in Michigan

Family medicine is Dr. Stepanski's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Stepanski is licensed in Michigan.

Specialties and state licenses

  • Family medicine, MichiganPrimaryLicense JS010360 · taxonomy 207Q00000X

Family medicine physicians near Dr. Stepanski

Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. James S. Stepanski billed Medicare for 1,289 services in 2022

CMS data shows 1,289 Medicare services from Dr. Stepanski across 13 procedure codes in 2022. Medicare paid $40,270 for them. Every service was in an office.

Medicare services, 20221,289
Paid by Medicare$40,270
Procedure codes13

Dr. Stepanski's Medicare services by type, 2021 to 2022

  • 2021
  • 2022
Office and hospital visits
2021: 6372022: 43831%
Surgery
2021: 4452022: 32128%
Tests and treatments
2021: 3832022: 20646%
Drugs given in the office
2021: 2332022: 13940%
Lab and pathology
2021: 1142022: 1249%
Other services
2021: 1582022: 6161%

Dr. Stepanski compared with the Michigan median for family medicine physicians, 2022

  • Dr. Stepanski
  • Michigan median
Medicare services
1,289vs 2485.2 times
Part D claims
464vs 1,03355% below

Medians across 4,990 family medicine physicians in Michigan with Dmand AI profiles that report each measure.

Dr. Stepanski's most billed Medicare procedure codes, 2022

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Stepanski

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. James S. Stepanski's patients have a median age of 67

Across all payers, Dmand AI patient panel data puts Dr. Stepanski's median patient age at 67, with 40% women.

Dr. Stepanski's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women40%
  • Men59%

Source: Dmand AI Patient Panel Data

Dr. James S. Stepanski wrote 845 Medicare Part D claims in 2024

In 2024, Dr. Stepanski wrote 845 Medicare Part D claims for 174 patients. 89% of them were for generic drugs. CMS names the drug for 464 of them, across 22 drugs with 11 or more claims each, at $7,415 in total drug cost. In 2023, CMS named 2,364 claims across 67 drugs.

Part D claims, 2024845
Drugs named by CMS22
Total drug cost$7,415
Part D patients174

Dr. Stepanski's Part D claims by kind of drug, 2024

  • Generic756 claims89%
  • Brand-name72 claims9%
  • Other17 claims2%

Dr. Stepanski'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2,3642024: 46480%

Drugs named by CMS: 22 in 2024, 67 in 2023.

See all prescribing by Dr. Stepanski

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

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Dr. James S. Stepanski received $12,075 in industry payments from 2016 to 2024

CMS Open Payments shows 802 general payments to Dr. Stepanski from 42 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,802.

General payments to Dr. Stepanski by program year, 2016 to 2024

General payments to Dr. Stepanski by kind, 2016 to 2024

$12.1Kin total
  • Food and beverage$12,065100%
  • Education$100%

Companies that paid Dr. Stepanski the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Stepanski

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. James S. Stepanski graduated from Michigan College of Medicine and Surgery

Dr. Stepanski graduated from Michigan College of Medicine and Surgery in 1988.

  1. Medical schoolMichigan College of Medicine and Surgery

Source: Dmand AI Professional Profile Data

Sources for Dr. James S. Stepanski's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. James S. Stepanski

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. James S. Stepanski's NPI number?

Dr. James S. Stepanski's NPI number is 1669462974. It was assigned on October 27, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. James S. Stepanski?

Dr. James S. Stepanski is a family medicine physician in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).

Where does Dr. James S. Stepanski practice?

Dr. Stepanski practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Stepanski's primary practice is University Hospital in Ann Arbor in Ann Arbor, Michigan. Dmand AI also links Dr. Stepanski to 1 group practice or clinic.

What is Dr. James S. Stepanski's office phone number?

The practice phone on file for Dr. Stepanski is (734) 936-4000.

What is Dr. James S. Stepanski's medical license number?

Dr. Stepanski holds Michigan license JS010360.

What medical group is Dr. James S. Stepanski part of?

Dr. Stepanski is linked to Walton Medical, P.C.

Does Dr. James S. Stepanski accept Medicare?

Yes. CMS data shows Dr. Stepanski billed Medicare for 1,289 services in 2022.

What services does Dr. James S. Stepanski bill to Medicare?

In 2022, Dr. Stepanski's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99213) and infusion or chemotherapy administration (96372).

Where did Dr. James S. Stepanski go to medical school?

Dr. Stepanski graduated from Michigan College of Medicine and Surgery in 1988.

What drugs does Dr. James S. Stepanski prescribe most?

In 2024 Medicare Part D data, Dr. Stepanski's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Omeprazole.

Has Dr. James S. Stepanski received payments from drug or device companies?

CMS Open Payments shows $12,075 in general payments to Dr. Stepanski from 42 companies from 2016 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. James S. Stepanski been practicing?

Dr. Stepanski graduated from medical school in 1988, 38 years ago.

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