NPPES file of Aug 9, 2026

Sandra Gayle Mendel, M.D.

Internal Medicine Physician · Santa Cruz, CA

Sandra Gayle Mendel, M.D. is an internal medicine physician with a practice address in Santa Cruz, California, and NPI 1538261011, issued on Sep 4, 2006. Check the license 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
1538261011
Name
Sandra Gayle Mendel
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
35053105M OH
Self-reported in NPPES; status is on the state search
Practice location
21507 E Cliff Dr, Santa Cruz, CA 95062
Phone
(831) 427-3500
Enumerated
Sep 4, 2006
Record last updated
Jun 11, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(513) 475-7480
Medicaid ID
0638331 OH
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 21507 E Cliff Dr

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

  1. Marco FloresRegistered Nurse1215380027
  2. Maria Fuchs, PAPhysician Assistant1134465933
  3. Elohim Gonzalez, RNRegistered Nurse1003570748
  4. Audrey Huang, RNCommunity Health Registered Nurse1568902989
  5. Diane Hull, P.A.Physician Assistant1184810988
  6. Lourdes Rocio Knapp, RNCommunity Health Registered Nurse1659934909

Verify Sandra Gayle Mendel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

41 Medicare Part D claims for 21 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Sandra Mendel41
  2. Specialty average3,176

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.

Sandra Gayle Mendel among 17,696 internal medicine physician records in California

Sandra Gayle Mendel, M.D. 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. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2019 · 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).

Internal Medicine Physician providers in California

There are 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Timothy W Allari, MDSanta Cruz, CA 950621013996370
  2. Laura Garvin, MDSanta Cruz, CA 950621235229196
  3. John JacksonSanta Cruz, CA 950621780664557
  4. Daniel Kim, M.D.Santa Cruz, CA 950621124008313
  5. Sarita LoboSanta Cruz, CA 950621528144334
  6. Beata Mach, MDSanta Cruz, CA 950621184604712
  7. Lindsy Martinez, M.D.Santa Cruz, CA 950621336672336
  8. Holly B Moore, MDSanta Cruz, CA 950621043362270

Common questions

What is Sandra Gayle Mendel, M.D.'s NPI number?

Sandra Gayle Mendel, M.D.'s National Provider Identifier (NPI) is 1538261011, issued on Sep 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sandra Gayle Mendel, M.D. located?

The NPPES record lists a practice address at 21507 E Cliff Dr, Santa Cruz, CA, 95062. Phone: (831) 427-3500. Providers update this record themselves, so call before visiting.

How can I verify Sandra Gayle Mendel, M.D.'s license?

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 Sandra Gayle Mendel, M.D. prescribe under Medicare Part D?

In 2024, Sandra Gayle Mendel, M.D. had 41 Medicare Part D claims for 21 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.