Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MARY LEE GREWAL D.O.
NPI 1821480732
Surgery - Vascular Surgery in Loma Linda, CA

Active since March 02, 2015PECOS Enrolled
85.18/100
CMS Quality Rating
11201 BENTON ST, LOMA LINDA, CA 92357(098) 257-0849 Get Directions Write a Review

NPPES record last updated: July 17, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 17, 2026, Jun 20, 2023, Jul 5, 2021 (3 updates tracked since 2021).

About Dr. Mary Lee Grewal D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARY LEE GREWAL D.O. (NPI 1821480732) is an individual vascular surgery provider in Loma Linda, California, licensed in California (19531) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821480732
Entity TypeIndividualFemale
Primary Taxonomy2086S0129X
Provider Legal NameDR. MARY LEE GREWALCredential: D.O.
Location Address11201 BENTON STLoma Linda, CA 92357-3504
Mailing Address11201 Benton StLoma Linda, CA 92357-1000 · (909) 825-7084 · Fax (909) 777-3209
Sole ProprietorNo
Enumeration DateMarch 2, 2015
Last NPPES UpdateJuly 17, 20263 updates tracked since enumeration
NPPES CertifiedJuly 17, 2026
NPI 1821480732 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License Licensed in CA · 19531
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
11201 BENTON ST, Loma Linda, CA 92357

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Dr. Mary Lee Grewal D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92357 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.18/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.81
Promoting Interoperability82
Improvement Activities40
Cost64.54

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Radiology (Diagnostic Radiology)
11201 BENTON ST, VA LOMA LINDA HEALTHCARE SYSTEM - DEPT OF RADIOLOGY
LOMA LINDA, CA 92357
Social Worker (Clinical)
11201 BENTON ST
LOMA LINDA, CA 92357
Internal Medicine
11201 BENTON ST
LOMA LINDA, CA 92357
Respiratory Therapist, Registered (Pulmonary Diagnostics)
11201 BENTON ST
LOMA LINDA, CA 92357
Counselor (Mental Health)
11201 BENTON ST
LOMA LINDA, CA 92357
Psychologist (Clinical)
11201 BENTON ST
LOMA LINDA, CA 92357
Nurse Practitioner (Family)
11201 BENTON ST
LOMA LINDA, CA 92357
Registered Nurse (Emergency)
11201 BENTON ST
LOMA LINDA, CA 92357

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Grewal's NPI number?

The NPI number for Mary Grewal is 1821480732. It was assigned to this individual provider in the NPPES registry on March 2, 2015.

Where is Mary Grewal located?

Mary Grewal practices at 11201 Benton St, Loma Linda, CA 92357. The listed phone number is (098) 257-0849.

What is Mary Grewal's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Mary Grewal enrolled in Medicare?

Yes. Mary Grewal is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mary Grewal was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.