NPPES file of Aug 9, 2026

Jeffrey A. Sandler, M.D.

Endocrinology, Diabetes & Metabolism Physician · San Diego, CA

Jeffrey A. Sandler, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in San Diego, California, and NPI 1740270313, issued on Oct 25, 2005. Check the license (California G23440, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740270313
Name
Jeffrey A. Sandler
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
G23440 CA
Self-reported in NPPES; status is on the state search
Practice location
4060 4TH Ave Ste 340, San Diego, CA 92103
Phone
(619) 497-6188
Enumerated
Oct 25, 2005
Record last updated
Aug 2, 2023
Medicare enrollment
Enrolled (PECOS I20050119001149); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 1971
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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Verify Jeffrey A. Sandler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G23440
    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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3.1 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024

8,104 Medicare Part D claims for 877 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims. 37 claims were for opioids.

  1. Jeffrey Sandler8,104
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium754 claims
  2. Ozempic504 claims
  3. Jardiance426 claims
  4. Metformin Hcl381 claims
  5. Synthroid360 claims
  6. Rybelsus285 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.

The MIPS final score for 2023 (Medicare payment program): 13.2 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%43.9
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Jeffrey A. Sandler among 1,131 endocrinology, diabetes & metabolism physician records in California

Jeffrey A. Sandler, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1971 · median 2003 among the 779 with a school on file
  • Record last updated2023 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in California

There are 1,131 endocrinology, diabetes & metabolism physician records in California.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Suvesh Chandiok, MDSan Diego, CA 921031235112608
  2. Edward Chao, DOSan Diego, CA 921031932298122
  3. Wolfgang Dillman, M.D.San Diego, CA 921031386675445
  4. Chris Guerin, M.D.San Diego, CA 921031275648875
  5. Nadeen Hosein, M.D.San Diego, CA 921031912051715
  6. Kelli Karches, M.D., MPHSan Diego, CA 921031891997631
  7. Kristen Kulasa, M.D.San Diego, CA 921031932324175
  8. Derek Mafong, M.D.San Diego, CA 921031699781633

Common questions

What is Jeffrey A. Sandler, M.D.'s NPI number?

Jeffrey A. Sandler, M.D.'s National Provider Identifier (NPI) is 1740270313, issued on Oct 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Jeffrey A. Sandler, M.D. located?

The NPPES record lists a practice address at 4060 4TH Ave Ste 340, San Diego, CA, 92103. Phone: (619) 497-6188. Providers update this record themselves, so call before visiting.

How can I verify Jeffrey A. Sandler, M.D.'s license?

NPPES lists California license number G23440, 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 Jeffrey A. Sandler, M.D. prescribe under Medicare Part D?

In 2024, Jeffrey A. Sandler, M.D. had 8,104 Medicare Part D claims for 877 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

What is Jeffrey A. Sandler, M.D.'s MIPS final score?

The 2023 MIPS final score is 13.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.