Mary Lee Grewal, D.O.
Vascular Surgery Physician · Loma Linda, CA
Mary Lee Grewal, D.O. is a vascular surgery physician with a practice address in Loma Linda, California, and NPI 1821480732, issued on Mar 2, 2015. Check the license (California 19531, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary Lee Grewal
- Credential
- D.O.
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License number
- 19531 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11201 Benton St, Loma Linda, CA 92357
- Phone
- (098) 257-0849
- Enumerated
- Mar 2, 2015
- Record last updated
- Jul 17, 2026
- Entity
- Type 1 · individual
8 nearest vascular surgery physician records → All 580 in California → Look up another NPI →
Also registered at 11201 Benton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arlene AbarcaCritical Care Medicine Registered Nurse1437073467
- Antonio Abiog, M.D.Surgery Physician1952492522
- Hesham AbugufaDentist1538875794
- Matthew Adams, DPTPhysical Therapist1184786071
- Susann Adams, LCSWClinical Social Worker1295849362
- Raychelle Addo, LCSWClinical Social Worker1033307251
Verify Mary Lee Grewal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 19531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 85.2 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: $1,802.70
17 payments; by number, the most common kind was food and beverage; the largest payer was ShockWave Medical, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 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.
Mary Lee Grewal among 580 vascular surgery physician records in California
Mary Lee Grewal, D.O. is one of 580 vascular surgery physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 84% of them.
- NPI issued2015 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2026 · 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 2086S0129X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Surgery Physician providers in California
There are 580 vascular surgery physician records in California.
All 580 in California → Every provider in Loma Linda → Vascular Surgery Physician nationwide →
The 8 vascular surgery physician records with the nearest ZIP codes
- Ahmed Abou-Zamzam, M.D.Loma Linda, CA 923541558306795
- Ghaleb Darwazeh, M.D.Loma Linda, CA 923541326320003
- William Duong, M.D.Loma Linda, CA 923541427402445
- Rumi Faizer, M.D.Loma Linda, CA 923541720025455
- Allen Murga, M.D.Loma Linda, CA 923541124386370
- Ramola Panchal, MDLoma Linda, CA 923541225569098
- Theodore Teruya, MDLoma Linda, CA 923541538233572
- Wantzy Cooper, D.O.Needles, CA 923631942383393
Common questions
What is Mary Lee Grewal, D.O.'s NPI number?
Mary Lee Grewal, D.O.'s National Provider Identifier (NPI) is 1821480732, issued on Mar 2, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mary Lee Grewal, D.O. located?
The NPPES record lists a practice address at 11201 Benton St, Loma Linda, CA, 92357. Phone: (098) 257-0849. Providers update this record themselves, so call before visiting.
How can I verify Mary Lee Grewal, D.O.'s license?
NPPES lists California license number 19531, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Mary Lee Grewal, D.O.'s MIPS final score?
The 2023 MIPS final score is 85.2 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.