Horia M. Tatu, M.D.
Internal Medicine Physician · Auburn Hills, MI
Horia M. Tatu, M.D. is an internal medicine physician with a practice address in Auburn Hills, Michigan, and NPI 1093833535, issued on Mar 26, 2007. Check the license (Michigan 4301080465, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Horia M. Tatu
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301080465 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2191 South Blvd, Auburn Hills, MI 48326
- Phone
- (248) 724-1420
- Enumerated
- Mar 26, 2007
- Record last updated
- May 2, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (248) 724-1430
- Medicare enrollment
- Enrolled (PECOS I20070702000310); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 2191 South Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carmen Bogdan, MDInternal Medicine Physician1750349627
Verify Horia M. Tatu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301080465Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
91 Medicare Part D claims for 71 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen15 claims
- Ciprofloxacin Hcl11 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 3 group practices
- Mclaren Hospital GroupCaro, MI
- Mclaren Medical GroupCaro, MI
- Sound Inpatient Physicians-Michigan PLLCAlpena, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Horia M. Tatu among 5,735 internal medicine physician records in Michigan
Horia M. Tatu, M.D. is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% 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 40% of them.
- NPI issued2007 · 40% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2007 · median 2006 among the 3,564 with a school on file
- Record last updated2014 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Michigan
There are 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Auburn Hills → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Carmen Bogdan, MDAuburn Hills, MI 483261750349627
- Ranim ChamseddinAuburn Hills, MI 483261144838335
- Vachareeporn Jayasvasti, DOAuburn Hills, MI 483261801953492
- Gregory Stevens, M.D.Auburn Hills, MI 483261275672420
- Gary Vandekerckhove, M.D.Auburn Hills, MI 483261578619482
- Hend Aljundi, MDWaterford, MI 483271154314136
- M-Amin Badawi, M.D.Waterford, MI 483271063430981
- James Gibson, M.D.Waterford, MI 483271104838655
Common questions
What is Horia M. Tatu, M.D.'s NPI number?
Horia M. Tatu, M.D.'s National Provider Identifier (NPI) is 1093833535, issued on Mar 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Horia M. Tatu, M.D. located?
The NPPES record lists a practice address at 2191 South Blvd, Auburn Hills, MI, 48326. Phone: (248) 724-1420. Providers update this record themselves, so call before visiting.
How can I verify Horia M. Tatu, M.D.'s license?
NPPES lists Michigan license number 4301080465, 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 Horia M. Tatu, M.D. prescribe under Medicare Part D?
In 2024, Horia M. Tatu, M.D. had 91 Medicare Part D claims for 71 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.