Registry data as of Aug 27, 2026

Gretchen Hetzler, M.D..

Gynecology Physician · Los Alamitos, CA

Gretchen Hetzler, M.D.. is a gynecology physician with a practice address in Los Alamitos, California, and NPI 1699861526, issued on Oct 5, 2006. Check the license (California G58400, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1699861526
Name
Gretchen Hetzler
Credential
M.D..
Primary taxonomy
Gynecology Physician 207VG0400X
License number
G58400 CA
Self-reported in NPPES; status is on the state search
Practice location
10861 Cherry St, Los Alamitos, CA 90720
Phone
(562) 594-8320
Enumerated
Oct 5, 2006
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 10861 Cherry St

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

  1. Virginia Agnelli, M.D.Obstetrics & Gynecology Physician1982643763
  2. Alexandra Chrysanthis, MDInternal Medicine Physician1588734974
  3. Tyson Curtis, DDSDentist1255677951
  4. Arlene Dolorico, MDOphthalmology Physician1861464000
  5. Larry Drum, MDInternal Medicine Physician1316018112
  6. Farbod Esmailian, MDPlastic Surgery Physician1578677969

Verify Gretchen Hetzler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G58400
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

2.3 times the Medicare Part D claims of the average gynecology physician in 2024

731 Medicare Part D claims for 231 beneficiaries, against an average of 319 among the 1,929 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Gretchen Hetzler731
  2. Specialty average319

Most prescribed

  1. Estradiol171 claims
  2. Alendronate Sodium114 claims
  3. Estradiol (Twice Weekly)61 claims
  4. Clotrimazole-Betamethasone60 claims
  5. Valacyclovir40 claims
  6. Progesterone35 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 Medicare quality score for 2023: 18.7 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%62.3
  3. Promoting interoperabilityout of 100 · 25%
  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).

Industry payments in 2024: $900.16

32 payments, mostly food and beverage; the largest payer was Astellas Pharma US Inc. The 1,393 providers of this specialty with any payment received $2,024.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gretchen Hetzler$900.16
  2. Specialty average$2,024.38

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Gynecology Physician providers in California

There are 377 gynecology physician records in California.

Other gynecology physician records in California

  1. Ahmed Abdelaziz, MDSanta Maria, CA1790039733
  2. Keevan Abramson, MDFort Bragg, CA1851473177
  3. Robert Adams, MDMonterey, CA1316017601
  4. Naphthali Alinsod, M.D.Laguna Beach, CA1326055096
  5. Parichehr Allameh, M.D.Sylmar, CA1053434563
  6. Margarita Alvarado, M.D.San Francisco, CA1417974858
  7. Michal Amir, M.D.Beverly Hills, CA1982790598
  8. Malaika Amneus, M.D.Sylmar, CA1538379706
  9. Anna Anderson, MDMountain View, CA1457577801
  10. Donald Armstrong, M.D.Fullerton, CA1881672665

Common questions

What is Gretchen Hetzler, M.D..'s NPI number?

Gretchen Hetzler, M.D..'s National Provider Identifier (NPI) is 1699861526, issued on Oct 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gretchen Hetzler, M.D.. located?

The NPPES record lists a practice address at 10861 Cherry St, Los Alamitos, CA, 90720. Phone: (562) 594-8320. Providers update this record themselves, so call before visiting.

How can I verify Gretchen Hetzler, M.D..'s license?

NPPES lists California license number G58400, 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 Gretchen Hetzler, M.D.. prescribe under Medicare Part D?

In 2024, Gretchen Hetzler, M.D.. had 731 Medicare Part D claims for 231 beneficiaries; the average among gynecology physician prescribers was 319. Part D covers Medicare prescriptions only.

What is Gretchen Hetzler, M.D..'s Medicare quality score?

The 2023 MIPS final score is 18.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.