Deanna O'Brien
Physician Assistant · Detroit, MI
Deanna O'Brien is a physician assistant with a practice address in Detroit, Michigan, and NPI 1720741754, issued on Oct 17, 2021. Check the license (Michigan 5601011395, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Deanna O'Brien
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601011395 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4001 W Mcnichols RD, Detroit, MI 48221
- Phone
- (313) 993-1245
- Enumerated
- Oct 17, 2021
- Record last updated
- Dec 8, 2025
- Medicare enrollment
- Enrolled (PECOS I20231102000503); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 6,989 in Michigan → Look up another NPI →
Also registered at 4001 W Mcnichols RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara AtishaPhysician Assistant1316601206
- Monique Bailhe, PA-CPhysician Assistant1063231843
- Bryan BalajCritical Care Medicine Registered Nurse1629913314
- Artemio Corvette BarayugaCertified Registered Nurse Anesthetist1609533090
- Abigail Barno, AT ATCAthletic Trainer1679040133
- Abigail BastienContinuing Education/Staff Development Registered Nurse1265377063
Verify Deanna O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601011395Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average physician assistant in 2024
2,142 Medicare Part D claims for 491 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 14 claims were for opioids.
Most prescribed
- Amlodipine Besylate115 claims
- Atorvastatin Calcium108 claims
- Albuterol Sulfate Hfa99 claims
- Prednisone91 claims
- Fluticasone Propionate89 claims
- Metformin Hcl78 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 one group practice
- Henry Ford Health SystemDearborn, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Deanna O'Brien among 6,989 physician assistant records in Michigan
Deanna O'Brien is one of 6,989 physician assistant 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 2021, is newer than 71% of them.
- NPI issued2021 · 71% of these records are older, 24% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2022 · median 2017 among the 4,739 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
368 physician assistant records list a practice address in Detroit
They are 368 of the 19,832 NPPES records with a practice address in Detroit, and 6,989 physician assistant records in Michigan.
All 6,989 in Michigan → Every provider in Detroit → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Leo Antrassian, PA-CDetroit, MI 482211730699299
- Sara AtishaDetroit, MI 482211316601206
- Kristen Danyal, PA-CDetroit, MI 482211861179848
- Isabella Dela CruzDetroit, MI 482211619583994
- Amy Dereczyk, PA-CDetroit, MI 482211558349050
- John Fisher, PA-CDetroit, MI 482211225753775
- Ayana Gates, PA-CDetroit, MI 482211952841207
- Kimberly Haggerty, PADetroit, MI 482211841884384
Common questions
What is Deanna O'Brien's NPI number?
Deanna O'Brien's National Provider Identifier (NPI) is 1720741754, issued on Oct 17, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Deanna O'Brien located?
The NPPES record lists a practice address at 4001 W Mcnichols RD, Detroit, MI, 48221. Phone: (313) 993-1245. Providers update this record themselves, so call before visiting.
How can I verify Deanna O'Brien's license?
NPPES lists Michigan license number 5601011395, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Deanna O'Brien prescribe under Medicare Part D?
In 2024, Deanna O'Brien had 2,142 Medicare Part D claims for 491 beneficiaries; the average among physician assistant prescribers was 830. 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.