Dr. James William Oconnor, MD
- Medicare services, 2022
- 61
- Part D claims, 2023
- 506
- Industry payments
- $299
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 1101 W University Dr, Rochester, MI 48307
- Practice phone
- Call (248) 652-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Henry Ford Rochester Hospital
Rochester, Michigan
Find Dr. Oconnor'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. James William Oconnor is an internist in Rochester, Michigan
Dr. Oconnor practices at Henry Ford Rochester Hospital in Rochester, Michigan.
Dr. Oconnor's NPI, 1891752572, was assigned on April 27, 2006. Dr. Oconnor graduated from University of Massachusetts Medical School in 1981. Dr. Oconnor holds Massachusetts license 49959.
- NPI
- 1891752572NPI Registry (opens in a new tab)
- NPI enumeration date
- April 27, 2006
- NPI status
- Active
- Practice phone
- (248) 652-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. James William Oconnor practices at Henry Ford Rochester Hospital in Rochester, Michigan
Dr. Oconnor's primary practice is Henry Ford Rochester Hospital, at 1101 W University Dr, Rochester, MI 48307 in Oakland County. The practice phone is (248) 652-5000.
- Henry Ford Rochester Hospital1101 W University Dr, Rochester, MI 48307 · Oakland CountyPhone(248) 652-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. James William Oconnor is affiliated with 2 sites of care and 1 medical group
Dr. Oconnor's primary practice is Henry Ford Rochester Hospital in Rochester, Michigan. The medical group on file is Medical Affiliates of Cape Cod (MACC). Dmand AI also links Dr. Oconnor to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. James William Oconnor's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oconnor practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Henry Ford Rochester Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James William Oconnor is one of 4,804 internists in Michigan
Internal medicine is Dr. Oconnor's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Oconnor is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Oconnor
Counts of internists 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 William Oconnor billed Medicare for 61 services in 2022
CMS data shows 61 Medicare services from Dr. Oconnor across 4 procedure codes in 2022. Medicare paid $446 for them. Every service was in an office.
Dr. Oconnor's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Lab and pathology
- 2021: 4,1882022: 3599%
- Surgery
- 2021: 6822022: 2696%
- Tests and treatments
- 2021: 822022: 0100%
- Other services
- 2021: 5142022: 0100%
- Office and hospital visits
- 2021: 1,4262022: 0100%
Dr. Oconnor compared with the Michigan median for internists, 2022
- Dr. Oconnor
- Michigan median
- Medicare services
- 61vs 42386% below
- Part D claims
- 506vs 31461% above
Medians across 4,524 internists in Michigan with Dmand AI profiles that report each measure.
Dr. Oconnor'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Oconnor and other internists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James William Oconnor's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Oconnor's median patient age at 73, with 47% women.
Dr. Oconnor'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
- Women47%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. James William Oconnor wrote 506 Medicare Part D claims in 2023
In 2023, Dr. Oconnor wrote 506 Medicare Part D claims. Every claim was for a generic drug. They cover 17 drugs, with $8,946 in total drug cost. In 2022, CMS named 5,892 claims across 103 drugs.
Dr. Oconnor's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 5,8922023: 50691%
Drugs named by CMS: 17 in 2023, 103 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. James William Oconnor received $299 in industry payments from 2017 to 2024
CMS Open Payments shows 12 general payments to Dr. Oconnor from 5 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Intuitive Surgical, Inc. paid the most, $135.
General payments to Dr. Oconnor by program year, 2017 to 2024
Companies that paid Dr. Oconnor the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James William Oconnor graduated from University of Massachusetts Medical School
Dr. Oconnor graduated from University of Massachusetts Medical School in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James William Oconnor'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| 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. James William Oconnor
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What is Dr. James William Oconnor's NPI number?
Dr. James William Oconnor's NPI number is 1891752572. It was assigned on April 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James William Oconnor?
Dr. James William Oconnor is an internist in Rochester, Michigan. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James William Oconnor practice?
Dr. Oconnor practices at 1101 W University Dr, Rochester, MI 48307. Dr. Oconnor's primary practice is Henry Ford Rochester Hospital in Rochester, Michigan. Dmand AI also links Dr. Oconnor to 1 group practice or clinic.
What is Dr. James William Oconnor's office phone number?
The practice phone on file for Dr. Oconnor is (248) 652-5000.
What is Dr. James William Oconnor's medical license number?
Dr. Oconnor holds Massachusetts license 49959.
What medical group is Dr. James William Oconnor part of?
Dr. Oconnor is linked to Medical Affiliates of Cape Cod (MACC).
Does Dr. James William Oconnor accept Medicare?
Yes. CMS data shows Dr. Oconnor billed Medicare for 61 services in 2022.
What services does Dr. James William Oconnor bill to Medicare?
In 2022, Dr. Oconnor's most billed Medicare services were surgery: heart and blood vessels (36415), lab and pathology test (80048) and lab and pathology test (80061).
Where did Dr. James William Oconnor go to medical school?
Dr. Oconnor graduated from University of Massachusetts Medical School in 1981.
What drugs does Dr. James William Oconnor prescribe most?
In 2023 Medicare Part D data, Dr. Oconnor's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Amlodipine Besylate.
Has Dr. James William Oconnor received payments from drug or device companies?
CMS Open Payments shows $299 in general payments to Dr. Oconnor from 5 companies from 2017 to 2024. The largest total came from Intuitive Surgical, Inc.
How long has Dr. James William Oconnor been practicing?
Dr. Oconnor graduated from medical school in 1981, 45 years ago.
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