Rajinder Grewal
Internal Medicine Physician · Pontiac, MI
Rajinder Grewal is an internal medicine physician with a practice address in Pontiac, Michigan, and NPI 1437327350, issued on Feb 13, 2008. Check the license (Michigan 4301088742, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Rajinder Grewal
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301088742 MI
Self-reported in NPPES; status is on the state search - Practice location
- 44405 Woodward Ave, Pontiac, MI 48341
- Phone
- (248) 858-3000
- Enumerated
- Feb 13, 2008
- Record last updated
- Sep 11, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20091203000617); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 44405 Woodward Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rajinder Grewal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301088742Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
129 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium13 claims
- Atorvastatin Calcium11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 90.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $249.73
2 payments; by number, the most common kind was food and beverage; the largest payer was Csl Behring. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Fadi Salloum MD PCPontiac, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rajinder Grewal among 5,735 internal medicine physician records in Michigan
Rajinder Grewal 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 2008, is newer than 48% of them.
- NPI issued2008 · 48% of these records are older, 49% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2003 · median 2006 among the 3,564 with a school on file
- Record last updated2013 · 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).
115 internal medicine physician records list a practice address in Pontiac
They are 115 of the 1,951 NPPES records with a practice address in Pontiac, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Pontiac → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Bander, MDPontiac, MI 483411386681385
- Hima Challa, MDPontiac, MI 483411306093448
- Liviu DanescuPontiac, MI 483411508034307
- Septimiu Danescu, M.D.Pontiac, MI 483411528215456
- Benjamin Diaczok, MDPontiac, MI 483411760480834
- Namdeo Kale, MDPontiac, MI 483411558435628
- Muhammad Khan, MDPontiac, MI 483411861461451
- Geetha Krishnamoorthy, MDPontiac, MI 483411790723625
Common questions
What is Rajinder Grewal's NPI number?
Rajinder Grewal's National Provider Identifier (NPI) is 1437327350, issued on Feb 13, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Rajinder Grewal located?
The NPPES record lists a practice address at 44405 Woodward Ave, Pontiac, MI, 48341. Phone: (248) 858-3000. Providers update this record themselves, so call before visiting.
How can I verify Rajinder Grewal's license?
NPPES lists Michigan license number 4301088742, 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 Rajinder Grewal prescribe under Medicare Part D?
In 2024, Rajinder Grewal had 129 Medicare Part D claims for 17 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Rajinder Grewal's MIPS final score?
The 2023 MIPS final score is 90.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.