James Oconnor, D.O.
NPI 1659442184 · Adult Medicine Physician · Ann Arbor, MI
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Oconnor, D.O. is a Adult Medicine Physician provider in Ann Arbor, MI (NPI 1659442184).
Provider details
- NPI number
- 1659442184
- Entity type
- Individual
- Primary specialty
- Adult Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 5101005756 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-13
- Last updated
- 2012-12-17
Frequently asked questions
- What is James Oconnor's NPI number?
- James Oconnor's National Provider Identifier (NPI) is 1659442184, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Oconnor's specialty?
- James Oconnor is listed in the NPPES registry with a primary specialty of Adult Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Oconnor located?
- James Oconnor's practice location on file with NPPES is 315 E Eisenhower Pkwy, Ann Arbor, MI 48108-3350.
- What is James Oconnor's phone number?
- The practice phone number listed in the NPPES registry for James Oconnor is (734) 222-8200.
- Does James Oconnor accept Medicare?
- James Oconnor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Oconnor's NPI active?
- Yes — James Oconnor's NPI (1659442184) is active in the NPPES registry as of the last update on 2012-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.