NPPES file of Aug 9, 2026

Tabssum Mohamad Ejaz Chauhan, MD

Hematology & Oncology Physician · Royal Oak, MI

Tabssum Mohamad Ejaz Chauhan, MD is a hematology & oncology physician with a practice address in Royal Oak, Michigan, and NPI 1598455370, issued on May 15, 2023. Check the license (Michigan 4301518009, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598455370
Name
Tabssum Mohamad Ejaz Chauhan
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
4301518009 MI
4351051216 MI
Self-reported in NPPES; status is on the state search
Practice location
3577 W 13 Mile RD Ste 101, Royal Oak, MI 48073
Phone
(248) 551-8651
Enumerated
May 15, 2023
Record last updated
Jun 22, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3577 W 13 Mile RD Ste 101

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah Rawski, PA-CMedical Physician Assistant1861863979

Verify Tabssum Mohamad Ejaz Chauhan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301518009
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

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96% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

31 Medicare Part D claims for 17 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.

  1. Tabssum Chauhan31
  2. Specialty average877

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.

Industry payments in 2024: $25.33

1 payment: food and beverage; the largest payer was Solventum Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tabssum Chauhan$25.33
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Tabssum Mohamad Ejaz Chauhan among 340 hematology & oncology physician records in Michigan

Tabssum Mohamad Ejaz Chauhan, MD is one of 340 hematology & oncology 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 2023, is newer than 96% of them.

  • NPI issued2023 · 96% of these records are older, under 1% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2026 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Michigan

There are 340 hematology & oncology physician records in Michigan.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Samer Ballouz, M.D.Royal Oak, MI 480731528068020
  2. Janet Chapman, M.D.Royal Oak, MI 480731972723385
  3. Matthew Cotant, M.D.Royal Oak, MI 480731003930215
  4. Marianne Huben, D.O.Royal Oak, MI 480731871552414
  5. Mohammed Ibrahim, MDRoyal Oak, MI 480731891701082
  6. Deepa Jagtap, M.D.Royal Oak, MI 480731629190095
  7. Ishmael Jaiyesimi, D.O.Royal Oak, MI 480731538128178
  8. Manolo Magno, M.D.Royal Oak, MI 480731659371151

Common questions

What is Tabssum Mohamad Ejaz Chauhan, MD's NPI number?

Tabssum Mohamad Ejaz Chauhan, MD's National Provider Identifier (NPI) is 1598455370, issued on May 15, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Tabssum Mohamad Ejaz Chauhan, MD located?

The NPPES record lists a practice address at 3577 W 13 Mile RD Ste 101, Royal Oak, MI, 48073. Phone: (248) 551-8651. Providers update this record themselves, so call before visiting.

How can I verify Tabssum Mohamad Ejaz Chauhan, MD's license?

NPPES lists Michigan license number 4301518009, 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 Tabssum Mohamad Ejaz Chauhan, MD prescribe under Medicare Part D?

In 2024, Tabssum Mohamad Ejaz Chauhan, MD had 31 Medicare Part D claims for 17 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.