Tanja Ann Andrzejewski-Chu, M.D.
Emergency Medicine Physician · Troy, MI
Tanja Ann Andrzejewski-Chu, M.D. is an emergency medicine physician with a practice address in Troy, Michigan, and NPI 1952510380, issued on May 22, 2007. Check the license (Michigan 4301083965, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Tanja Ann Andrzejewski-Chu
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 4301083965 MI
Self-reported in NPPES; status is on the state search - Practice location
- 44201 Dequindre RD, Troy, MI 48085
- Phone
- (248) 964-5111
- Enumerated
- May 22, 2007
- Record last updated
- Jul 18, 2022
- Medicare enrollment
- Enrolled (PECOS I20130826000922); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 44201 Dequindre RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary A Pogasic, BSN, RNStudent in an Organized Health Care Education/Training Program1184559080
- Salma Abd Elhamid, PA-CPhysician Assistant1457245730
- Ryan Achrem, PA-CPhysician Assistant1720672736
- Aisha Afzal, M.D.Internal Medicine Physician1538474440
- Yusaf Ahmed, MDAnesthesiology Physician1174152136
- Melissa Akash, PAPhysician Assistant1780950329
Verify Tanja Ann Andrzejewski-Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301083965Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average emergency medicine physician in 2024
111 Medicare Part D claims for 63 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Cephalexin11 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
- Beaumont Medical Group Hospital Based ServicesTroy, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tanja Ann Andrzejewski-Chu among 3,083 emergency medicine physician records in Michigan
Tanja Ann Andrzejewski-Chu, M.D. is one of 3,083 emergency medicine physician 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 2007, is newer than 23% of them.
- NPI issued2007 · 23% of these records are older, 67% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2004 · median 2013 among the 1,931 with a school on file
- Record last updated2022 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 emergency medicine physician records list a practice address in Troy
They are 45 of the 3,809 NPPES records with a practice address in Troy, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Troy → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- William AndersonTroy, MI 480851548239304
- Aveh BastaniTroy, MI 480851821067877
- Kenneth BishopTroy, MI 480851407815681
- Chiara Cerasani, MDTroy, MI 480851689686701
- Blaine DennisTroy, MI 480851427017052
- Steven DimsdaleTroy, MI 480851437118833
- David DonaldsonTroy, MI 480851023077591
- Gjon Dushaj, MDTroy, MI 480851669426847
Common questions
What is Tanja Ann Andrzejewski-Chu, M.D.'s NPI number?
Tanja Ann Andrzejewski-Chu, M.D.'s National Provider Identifier (NPI) is 1952510380, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tanja Ann Andrzejewski-Chu, M.D. located?
The NPPES record lists a practice address at 44201 Dequindre RD, Troy, MI, 48085. Phone: (248) 964-5111. Providers update this record themselves, so call before visiting.
How can I verify Tanja Ann Andrzejewski-Chu, M.D.'s license?
NPPES lists Michigan license number 4301083965, 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 Tanja Ann Andrzejewski-Chu, M.D. prescribe under Medicare Part D?
In 2024, Tanja Ann Andrzejewski-Chu, M.D. had 111 Medicare Part D claims for 63 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.