NPPES file of Aug 9, 2026

Grace Guimei Yao, M.D.,PH.D

Obstetrics & Gynecology Physician · Irvine, CA

Grace Guimei Yao, M.D.,PH.D is an obstetrics & gynecology physician with a practice address in Irvine, California, and NPI 1184988461, issued on Jul 1, 2012. Check the license (California A132410, 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
1184988461
Name
Grace Guimei Yao
Credential
M.D.,PH.D
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A132410 CA
Self-reported in NPPES; status is on the state search
Practice location
22 Odyssey Ste 155, Irvine, CA 92618
Phone
(949) 418-7330
Enumerated
Jul 1, 2012
Record last updated
Jul 29, 2022
Fax
(844) 269-8761
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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8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →

Also registered at 22 Odyssey Ste 155

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

  1. Barbara Kangas, NPFamily Nurse Practitioner1649579343
  2. Jin Hee Park, L.AC.Acupuncturist1457749624

Verify Grace Guimei Yao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A132410    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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Industry payments in 2024: $125.00

1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Grace Yao$125.00
  2. Specialty average$1,030.61

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

Grace Guimei Yao among 5,088 obstetrics & gynecology physician records in California

Grace Guimei Yao, M.D.,PH.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 2012, is newer than 75% of them.

  • NPI issued2012 · 75% of these records are older, 22% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2022 · 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).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

All 5,088 in California → Every provider in Irvine → Obstetrics & Gynecology Physician nationwide →

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

  1. Morris Ahdoot, MDIrvine, CA 926181992748420
  2. Jessica Chun, MDIrvine, CA 926181023392321
  3. Tiffany Dote, MDIrvine, CA 926181013292358
  4. Catherine Han, MDIrvine, CA 926181023076221
  5. Rebecca Mervis, MDIrvine, CA 926181891087094
  6. Jenny Nordin, D.O.Irvine, CA 926181386895266
  7. Cecilia Perez, M.D.Irvine, CA 926181083906556
  8. Noah Rodriguez, MDIrvine, CA 926181053498980

Common questions

What is Grace Guimei Yao, M.D.,PH.D's NPI number?

Grace Guimei Yao, M.D.,PH.D's National Provider Identifier (NPI) is 1184988461, issued on Jul 1, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Grace Guimei Yao, M.D.,PH.D located?

The NPPES record lists a practice address at 22 Odyssey Ste 155, Irvine, CA, 92618. Phone: (949) 418-7330. Providers update this record themselves, so call before visiting.

How can I verify Grace Guimei Yao, M.D.,PH.D's license?

NPPES lists California license number A132410, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.