NPPES file of Aug 9, 2026

Sharnjit Singh Grewal, M.D.

Family Medicine Physician · Rocklin, CA

Sharnjit Singh Grewal, M.D. is a family medicine physician with a practice address in Rocklin, California, and NPI 1831290477, issued on Sep 26, 2006. Check the license (California A88367, as entered in NPPES) on the Medical Board of California; 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
1831290477
Name
Sharnjit Singh Grewal
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A88367 CA
Self-reported in NPPES; status is on the state search
Practice location
1160 Sunset Blvd, Rocklin, CA 95765
Phone
(916) 865-1000
Enumerated
Sep 26, 2006
Record last updated
Dec 2, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicaid ID
00A883670 CA
Medicare enrollment
Enrolled (PECOS I20061026000378); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1160 Sunset Blvd

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

  1. Ramin Bagheri, M.D.Gastroenterology Physician1104175249
  2. Vadim BulGastroenterology Physician1629498274
  3. Branden CutlerFamily Nurse Practitioner1346998820
  4. Ngoc-Truc Duong, M.D.Family Medicine Physician1215362629
  5. Alex Gonzalez, PAPhysician Assistant1497043483
  6. Trina Hara, M.D.Family Medicine Physician1710369186

Verify Sharnjit Singh Grewal in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A88367
    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 California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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28% more Medicare Part D claims than the average family medicine physician in 2024

4,554 Medicare Part D claims for 526 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 171 claims were for opioids.

  1. Sharnjit Grewal4,554
  2. Specialty average3,544

Most prescribed

  1. Levothyroxine Sodium242 claims
  2. Atorvastatin Calcium237 claims
  3. Amlodipine Besylate214 claims
  4. Losartan Potassium202 claims
  5. Lisinopril165 claims
  6. Gabapentin117 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

  1. Sutter Valley Medical FoundationRocklin, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sharnjit Singh Grewal among 17,133 family medicine physician records in California

Sharnjit Singh Grewal, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2003 · median 2005 among the 10,652 with a school on file
  • Record last updated2016 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

30 family medicine physician records list a practice address in Rocklin

They are 30 of the 1,575 NPPES records with a practice address in Rocklin, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Gagandeep Azad, M.DRocklin, CA 957651558522466
  2. Amandeep Bajwa, MDRocklin, CA 957651215265947
  3. Erwin Victor Boco, M.D.Rocklin, CA 957651851657936
  4. Himdip Dehal, M.D.Rocklin, CA 957651346409067
  5. Ngoc-Truc Duong, M.D.Rocklin, CA 957651215362629
  6. Deepa Jayakrishnan, MDRocklin, CA 957651861872608
  7. Mark Liu, DORocklin, CA 957651710967914
  8. Thuy Rose Nguyen, DORocklin, CA 957651124258116

Common questions

What is Sharnjit Singh Grewal, M.D.'s NPI number?

Sharnjit Singh Grewal, M.D.'s National Provider Identifier (NPI) is 1831290477, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sharnjit Singh Grewal, M.D. located?

The NPPES record lists a practice address at 1160 Sunset Blvd, Rocklin, CA, 95765. Phone: (916) 865-1000. Providers update this record themselves, so call before visiting.

How can I verify Sharnjit Singh Grewal, M.D.'s license?

NPPES lists California license number A88367, 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.

How much does Sharnjit Singh Grewal, M.D. prescribe under Medicare Part D?

In 2024, Sharnjit Singh Grewal, M.D. had 4,554 Medicare Part D claims for 526 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.