Registry data as of Aug 27, 2026

Ida Leong, M.D.

General Practice Physician · Santa Cruz, CA

Ida Leong, M.D. is a general practice physician with a practice address in Santa Cruz, California, and NPI 1447243365, issued on Aug 25, 2005. Check the license (California C38441, 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
1447243365
Name
Ida Leong
Credential
M.D.
Primary taxonomy
General Practice Physician 208D00000X
License number
C38441 CA
Self-reported in NPPES; status is on the state search
Practice location
320 River St, Santa Cruz, CA 95060
Phone
(831) 272-4324
Enumerated
Aug 25, 2005
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 320 River St

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

  1. Lauren Borowsky, L.AC, DIPL.OMAcupuncturist1336448687
  2. Jillian Chesley, MFTMarriage & Family Therapist1073642716
  3. Tracy Cone, L.AC.Acupuncturist1780804625
  4. Inna Dagman, CMTDoula1396580999
  5. Jenny Johnston, L.AC.Acupuncturist1851635148
  6. Maryasha (marcie) Katz, LCSWClinical Social Worker1255594917

Verify Ida Leong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C38441
    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 →

95% fewer Medicare Part D claims than the average general practice physician in 2024

160 Medicare Part D claims for 22 beneficiaries, against an average of 2,957 among the 8,605 providers of this specialty who prescribed in Part D.

  1. Ida Leong160
  2. Specialty average2,957

Most prescribed

  1. Rybelsus12 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.

General Practice Physician providers in California

There are 1,869 general practice physician records in California.

Other general practice physician records in California

  1. Dalal Aago, MDEl Cajon, CA1639863103
  2. Hessam Aazami, M.D.Canoga Park, CA1144299173
  3. Kenric Aban, M.D.Oceanside, CA1336218023
  4. Tahira Abbasi, MDLa Jolla, CA1619062346
  5. Ryan Abbott, M.D.Los Angeles, CA1194016030
  6. Adel Abdelsayed, M.D.Huntington Park, CA1922164961
  7. Brittany Abeldt, MDOakland, CA1982353884
  8. Ilona Abraham, MDEncino, CA1700939576
  9. Jerry Abraham, MD, MPH, CMQLos Angeles, CA1932514874
  10. Azniv Abrahamian, M.D.North Hollywood, CA1033270293

Common questions

What is Ida Leong, M.D.'s NPI number?

Ida Leong, M.D.'s National Provider Identifier (NPI) is 1447243365, issued on Aug 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ida Leong, M.D. located?

The NPPES record lists a practice address at 320 River St, Santa Cruz, CA, 95060. Phone: (831) 272-4324. Providers update this record themselves, so call before visiting.

How can I verify Ida Leong, M.D.'s license?

NPPES lists California license number C38441, 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 Ida Leong, M.D. prescribe under Medicare Part D?

In 2024, Ida Leong, M.D. had 160 Medicare Part D claims for 22 beneficiaries; the average among general practice physician prescribers was 2,957. Part D covers Medicare prescriptions only.

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.