Alexander Thomas Parker, MD
Psychiatry Physician · Ann Arbor, MI
Alexander Thomas Parker, MD is a psychiatry physician with a practice address in Ann Arbor, Michigan, and NPI 1366658361, issued on May 15, 2007. Check the license (Michigan 4301106294, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Alexander Thomas Parker
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 4301106294 MI
252072 NY
Self-reported in NPPES; status is on the state search - Practice location
- 623 W Huron St, Ann Arbor, MI 48103
- Phone
- (734) 274-2632
- Enumerated
- May 15, 2007
- Record last updated
- Jul 2, 2024
- Fax
- (734) 661-2668
- Medicare enrollment
- Enrolled (PECOS I20150323002195); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,729 in Michigan → Look up another NPI →
Also registered at 623 W Huron St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Barbara Rigney, PH.D.Psychologist1114230992
Verify Alexander Thomas Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301106294Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average psychiatry physician in 2024
611 Medicare Part D claims for 43 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Duloxetine Hcl53 claims
- Buspirone Hcl37 claims
- Escitalopram Oxalate36 claims
- Quetiapine Fumarate34 claims
- Diazepam31 claims
- Venlafaxine Hcl Er31 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.
One hospital affiliation
- Mymichigan Medical Center AlpenaAlpena, MI · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Alexander Thomas Parker among 1,729 psychiatry physician records in Michigan
Alexander Thomas Parker, 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 2007, is newer than 37% of them.
- NPI issued2007 · 37% of these records are older, 49% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2005 · 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).
246 psychiatry physician records list a practice address in Ann Arbor
They are 246 of the 15,616 NPPES records with a practice address in Ann Arbor, and 1,729 psychiatry physician records in Michigan.
All 1,729 in Michigan → Every provider in Ann Arbor → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Norman Alessi, M.D.Ann Arbor, MI 481031609964006
- Manal Assi, MDAnn Arbor, MI 481031487669354
- John Back, MDAnn Arbor, MI 481031285616995
- Linda Brakel, M.D.Ann Arbor, MI 481031174791800
- Marnie Burkman, M.D.Ann Arbor, MI 481031548485352
- Numa Cabrera, M.D.Ann Arbor, MI 481031962630897
- Stephen Colon, MDAnn Arbor, MI 481031962884601
- Stephen Cook, M.D.Ann Arbor, MI 481031699799544
Common questions
What is Alexander Thomas Parker, MD's NPI number?
Alexander Thomas Parker, MD's National Provider Identifier (NPI) is 1366658361, issued on May 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Thomas Parker, MD located?
The NPPES record lists a practice address at 623 W Huron St, Ann Arbor, MI, 48103. Phone: (734) 274-2632. Providers update this record themselves, so call before visiting.
How can I verify Alexander Thomas Parker, MD's license?
NPPES lists Michigan license number 4301106294, 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 Alexander Thomas Parker, MD prescribe under Medicare Part D?
In 2024, Alexander Thomas Parker, MD had 611 Medicare Part D claims for 43 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.