James O'Brien, MD
Psychiatry Physician · Marquette, MI
James O'Brien, MD is a psychiatry physician with a practice address in Marquette, Michigan, and NPI 1447871983, issued on May 6, 2020. Check the license (Michigan 4301507575, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- James O'Brien
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 4301507575 MI
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Spring St, Marquette, MI 49855
- Phone
- (906) 225-9835
- Enumerated
- May 6, 2020
- Record last updated
- Aug 21, 2024
- Fax
- (906) 225-7282
- Medicare enrollment
- Enrolled (PECOS I20240829002918); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 2020
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,729 in Michigan → Look up another NPI →
Also registered at 200 W Spring St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rebecca AckleyCase Manager/Care Coordinator1134079650
- Amanda AndersonSocial Worker1255102448
- Amy Baranek, BCBABehavior Analyst1417337593
- Emily BarnesBehavior Technician1174014328
- Delaney Basala, LLBSWSocial Worker1215677620
- Deborah Bauman, LMSWClinical Social Worker1336387745
Verify James O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301507575Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average psychiatry physician in 2024
945 Medicare Part D claims for 103 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Olanzapine58 claims
- Quetiapine Fumarate52 claims
- Lamotrigine51 claims
- Aripiprazole42 claims
- Clozapine36 claims
- Buspirone Hcl35 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.
Bills Medicare through 2 group practices
- Dickinson County Healthcare SystemIron Mountain, MI
- PathwaysMarquette, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James O'Brien among 1,729 psychiatry physician records in Michigan
James O'Brien, MD is one of 1,729 psychiatry physician records with a practice address in Michigan. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 81% of them.
- NPI issued2020 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2020 · median 2005 among the 828 with a school on file
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Michigan
There are 1,729 psychiatry physician records in Michigan.
All 1,729 in Michigan → Every provider in Marquette → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Carol Cappuccio, MDMarquette, MI 498551982687547
- Tyanne Dosh, M.D., M.S.Marquette, MI 498551043473655
- Carol Gamber, MDMarquette, MI 498551124001763
- Logan Hanert, DOMarquette, MI 498551417570888
- Jonathan Harbin, M.D.Marquette, MI 498551174734750
- Kelley Mahar, MDMarquette, MI 498551568494722
- Terry Meden, MDMarquette, MI 498551275796104
- Lynn Miller, MDMarquette, MI 498551659354298
Common questions
What is James O'Brien, MD's NPI number?
James O'Brien, MD's National Provider Identifier (NPI) is 1447871983, issued on May 6, 2020. An NPI identifies a provider in billing; it is not a license.
Where is James O'Brien, MD located?
The NPPES record lists a practice address at 200 W Spring St, Marquette, MI, 49855. Phone: (906) 225-9835. Providers update this record themselves, so call before visiting.
How can I verify James O'Brien, MD's license?
NPPES lists Michigan license number 4301507575, 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 James O'Brien, MD prescribe under Medicare Part D?
In 2024, James O'Brien, MD had 945 Medicare Part D claims for 103 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.