Hardeep S. Grewal, MD
Internal Medicine Physician · Phoenix, AZ
Hardeep S. Grewal, MD is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1669432118, issued on Mar 27, 2006. Check the license (Arizona 34469, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Hardeep S. Grewal
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 34469 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 4530 E Muirwood Dr, Phoenix, AZ 85048
- Phone
- (480) 961-2303
- Enumerated
- Mar 27, 2006
- Record last updated
- Nov 7, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (480) 961-2306
- Medicaid ID
- 962606 AZ
- Medicare enrollment
- Enrolled (PECOS I20060223000239); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 4530 E Muirwood Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Hardeep S. Grewal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 34469Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
266 Medicare Part D claims for 60 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Cefazolin Sodium41 claims
- Vancomycin Hcl41 claims
- Cefepime Hcl30 claims
- Daptomycin28 claims
- Ampicillin Sodium25 claims
- Ceftriaxone19 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
- East Valley Infectious Disease Medicine LLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hardeep S. Grewal among 2,853 internal medicine physician records in Arizona
Hardeep S. Grewal, MD is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1994 · median 2003 among the 1,643 with a school on file
- Record last updated2008 · 51% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
695 internal medicine physician records list a practice address in Phoenix
They are 695 of the 31,399 NPPES records with a practice address in Phoenix, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Phoenix → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Connie Chan, MDPhoenix, AZ 850481740252584
- Sai Lakshmi Chandran, MDPhoenix, AZ 850481437123593
- Rajan Gaur, M.D.Phoenix, AZ 850481720047590
- Edouard Mouaikel, M.D.Phoenix, AZ 850481134120892
- Michael Pang, M.D.Phoenix, AZ 850481033105200
- Norberto Perez, D.O.Phoenix, AZ 850481083600167
Common questions
What is Hardeep S. Grewal, MD's NPI number?
Hardeep S. Grewal, MD's National Provider Identifier (NPI) is 1669432118, issued on Mar 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hardeep S. Grewal, MD located?
The NPPES record lists a practice address at 4530 E Muirwood Dr, Phoenix, AZ, 85048. Phone: (480) 961-2303. Providers update this record themselves, so call before visiting.
How can I verify Hardeep S. Grewal, MD's license?
NPPES lists Arizona license number 34469, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hardeep S. Grewal, MD prescribe under Medicare Part D?
In 2024, Hardeep S. Grewal, MD had 266 Medicare Part D claims for 60 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.