Registry data as of Aug 27, 2026

Mary Ashkenaze, M.D.

Emergency Medicine Physician · Laguna Beach, CA

Mary Ashkenaze, M.D. is an emergency medicine physician with a practice address in Laguna Beach, California, and NPI 1912011453, issued on Aug 19, 2006. Check the license 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
1912011453
Name
Mary Ashkenaze
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
Practice location
31872 Coast Hwy, Laguna Beach, CA 92651
Phone
(949) 499-1311
Enumerated
Aug 19, 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 31872 Coast Hwy

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

  1. Andrew Adams, MDEmergency Medicine Physician1174085260
  2. Stuart Anderson, M.D.Anesthesiology Physician1306869201
  3. Josephine BangPharmacist1487313573
  4. Ronald Barr, M.D.Dermatopathology (Pathology) Physician1972608016
  5. Nancy Boerner, M.D.Internal Medicine Physician1154416451
  6. Michael Bower, M.D.Emergency Medicine Physician1215041751

Verify Mary Ashkenaze 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.

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

91% fewer Medicare Part D claims than the average emergency medicine physician in 2024

32 Medicare Part D claims for 20 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D.

  1. Mary Ashkenaze32
  2. Specialty average355

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 practice group's Medicare quality score for 2023: 94.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score76.7
  2. Costout of 100 · 30%97.1
  3. Promoting interoperabilityout of 100 · 25%
  4. Improvement activities40 of 40 points · 15%100.0

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

One hospital or facility affiliation

  1. Cep America - CaliforniaGarden Grove, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

12 emergency medicine physician records list a Laguna Beach practice address

They are 12 of the 505 NPPES records with a Laguna Beach practice address, and 7,133 emergency medicine physician records in California.

Other emergency medicine physician records in California

  1. Cooper Aakhus, MDStanford, CA1194351007
  2. Pyra Aarden, MDMartinez, CA1417058199
  3. Neal Aaron, D.O.Encinitas, CA1114283520
  4. Eric AaserudeWalnut Creek, CA1811491194
  5. Nader Abas, MDBarstow, CA1346288305
  6. Michael Abbo, MDNovato, CA1205819042
  7. Daniel Abbott, MDFullerton, CA1518907864
  8. Paul-Andre Abboud, M.D.Oakland, CA1710065503
  9. Mostafa Abdel-Hamid, MDStanford, CA1457918740
  10. Ashraf Abdel-KerimChino, CA1396961538

Common questions

What is Mary Ashkenaze, M.D.'s NPI number?

Mary Ashkenaze, M.D.'s National Provider Identifier (NPI) is 1912011453, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Ashkenaze, M.D. located?

The NPPES record lists a practice address at 31872 Coast Hwy, Laguna Beach, CA, 92651. Phone: (949) 499-1311. Providers update this record themselves, so call before visiting.

How can I verify Mary Ashkenaze, 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 Mary Ashkenaze, M.D. prescribe under Medicare Part D?

In 2024, Mary Ashkenaze, M.D. had 32 Medicare Part D claims for 20 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.

What is Mary Ashkenaze, M.D.'s Medicare quality score?

The 2023 MIPS final score is 94.6 of 100, reported for the practice group. 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.