NPPES file of Aug 9, 2026

Sally J. Rubenstone, MD

Internal Medicine Physician · Palo Alto, CA

Sally J. Rubenstone, MD is an internal medicine physician with a practice address in Palo Alto, California, and NPI 1235239740, issued on Sep 24, 2006. Check the license (California G53652, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235239740
Name
Sally J. Rubenstone
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G53652 CA
Self-reported in NPPES; status is on the state search
Practice location
4153 EL Camino Way Ste B, Palo Alto, CA 94306
Phone
(650) 857-0226
Enumerated
Sep 24, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(650) 857-0264
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 4153 EL Camino Way Ste B

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

  1. Connie Hernandez, N.D.Naturopath1003930918
  2. Dennis Wu, DDSGeneral Practice Dentistry1265824452

Verify Sally J. Rubenstone in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G53652
    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

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Sally J. Rubenstone among 17,696 internal medicine physician records in California

Sally J. Rubenstone, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2007 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

187 internal medicine physician records list a practice address in Palo Alto

They are 187 of the 7,617 NPPES records with a practice address in Palo Alto, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Patricia Allemann, M.D.Palo Alto, CA 943061265524433
  2. Sonia Bajwa-DulaiPalo Alto, CA 943061336429711
  3. Carlos Feder, M.D.Palo Alto, CA 943061225310238
  4. Hiroyu Hatano, M.D.Palo Alto, CA 943061871631507
  5. Stephanie Higgins, M.D.Palo Alto, CA 943061336275031
  6. Henry Lew, M.D.Palo Alto, CA 943061144596842
  7. Michael Nierenberg, MDPalo Alto, CA 943061790834133
  8. Bradford Rabin, MDPalo Alto, CA 943061831139815

Common questions

What is Sally J. Rubenstone, MD's NPI number?

Sally J. Rubenstone, MD's National Provider Identifier (NPI) is 1235239740, issued on Sep 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sally J. Rubenstone, MD located?

The NPPES record lists a practice address at 4153 EL Camino Way Ste B, Palo Alto, CA, 94306. Phone: (650) 857-0226. Providers update this record themselves, so call before visiting.

How can I verify Sally J. Rubenstone, MD's license?

NPPES lists California license number G53652, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.