Sajot S. Grewal, M.D.
Internal Medicine Physician · Corte Madera, CA
Sajot S. Grewal, M.D. is an internal medicine physician with a practice address in Corte Madera, California, and NPI 1144230053, issued on Aug 9, 2006. Check the license (California A85167, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sajot S. Grewal
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A85167 CA
Self-reported in NPPES; status is on the state search - Practice location
- 770 Tamalpais Dr, Corte Madera, CA 94925
- Phone
- (415) 945-8808
- Enumerated
- Aug 9, 2006
- Record last updated
- Jun 2, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (415) 945-8818
- Medicare enrollment
- Enrolled (PECOS I20040827001178); may accept Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 770 Tamalpais Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Luisa Ambrosiano, D.D.S.General Practice Dentistry1215076724
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- Alexander Kashef, DDS, MDOral and Maxillofacial Surgery (Dentist)1598925836
- Lisa Leung, N.P.Nurse Practitioner1619272176
- Elizabeth Lowe, M.D.Pediatrics Physician1043356413
- Alfred Oppenheim, M.D.Internal Medicine Physician1023028917
Verify Sajot S. Grewal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A85167Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average internal medicine physician in 2024
9,443 Medicare Part D claims for 932 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 221 claims were for opioids.
Most prescribed
- Atorvastatin Calcium925 claims
- Levothyroxine Sodium446 claims
- Amlodipine Besylate432 claims
- Losartan Potassium325 claims
- Rosuvastatin Calcium282 claims
- Lisinopril225 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.
Industry payments in 2024: $24.97
1 payment: food and beverage; the largest payer was Pfizer Inc. 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
- Regents Univ OF California UcsfSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
4 internal medicine physician records list a practice address in Corte Madera
They are 4 of the 365 NPPES records with a practice address in Corte Madera, and 17,696 internal medicine physician records in California.
All 4 in Corte Madera → All 17,696 in California → Every provider in Corte Madera →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Sajot S. Grewal, M.D.'s NPI number?
Sajot S. Grewal, M.D.'s National Provider Identifier (NPI) is 1144230053, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sajot S. Grewal, M.D. located?
The NPPES record lists a practice address at 770 Tamalpais Dr, Corte Madera, CA, 94925. Phone: (415) 945-8808. Providers update this record themselves, so call before visiting.
How can I verify Sajot S. Grewal, M.D.'s license?
NPPES lists California license number A85167, 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 Sajot S. Grewal, M.D. prescribe under Medicare Part D?
In 2024, Sajot S. Grewal, M.D. had 9,443 Medicare Part D claims for 932 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.