NPPES file of Aug 9, 2026

Ceeccy Yang, M.D.

Obstetrics & Gynecology Physician · Fontana, CA

Ceeccy Yang, M.D. is an obstetrics & gynecology physician with a practice address in Fontana, California, and NPI 1780767640, issued on Oct 23, 2006. Check the license (California C180614, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780767640
Name
Ceeccy Yang
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
C180614 CA
MD34024 TN
MD0000034214 TN
Self-reported in NPPES; status is on the state search
Practice location
9961 Sierra Ave, Fontana, CA 92335
Phone
(909) 427-5539
Enumerated
Oct 23, 2006
Record last updated
Jan 13, 2023
Fax
(865) 246-4753
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 9961 Sierra Ave

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

  1. Solomon Abila, MDFamily Medicine Physician1871652479
  2. Jenny Abouelsood, M.D.Family Medicine Physician1457638512
  3. Marla Abrolat, MDPediatrics Physician1164593133
  4. Eduardo Acosta, MDPediatrics Physician1497803324
  5. Michael Adair, MDFamily Medicine Physician1780732651
  6. Berneva Adams, MDObstetrics & Gynecology Physician1376602987

Verify Ceeccy Yang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C180614
    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.

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68% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

53 Medicare Part D claims for 19 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Ceeccy Yang53
  2. Specialty average165

Most prescribed

  1. Yuvafem12 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.

Ceeccy Yang among 5,088 obstetrics & gynecology physician records in California

Ceeccy Yang, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2023 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

50 obstetrics & gynecology physician records list a practice address in Fontana

They are 50 of the 3,012 NPPES records with a practice address in Fontana, and 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Berneva Adams, MDFontana, CA 923351376602987
  2. Curt Bouma, MDFontana, CA 923351629145537
  3. Kenneth Griffis Jr., MDFontana, CA 923351437218146
  4. Jerrelyn Inocencio-Diaz, MDFontana, CA 923351326115163
  5. Linda Knudtson, MDFontana, CA 923351689745622
  6. Sung Lee, MDFontana, CA 923351124195276
  7. Elaine Pan, MDFontana, CA 923351821165721
  8. Rodney Parker, MDFontana, CA 923351437226396

Common questions

What is Ceeccy Yang, M.D.'s NPI number?

Ceeccy Yang, M.D.'s National Provider Identifier (NPI) is 1780767640, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ceeccy Yang, M.D. located?

The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-5539. Providers update this record themselves, so call before visiting.

How can I verify Ceeccy Yang, M.D.'s license?

NPPES lists California license number C180614, 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 Ceeccy Yang, M.D. prescribe under Medicare Part D?

In 2024, Ceeccy Yang, M.D. had 53 Medicare Part D claims for 19 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.