NPPES file of Aug 9, 2026

Caroline Yao, M.D.

Plastic Surgery Physician · Pasadena, CA

Caroline Yao, M.D. is a plastic surgery physician with a practice address in Pasadena, California, and NPI 1790041697, issued on Apr 4, 2012. Check the license (California A120821, 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
1790041697
Name
Caroline Yao
Credential
M.D.
Primary taxonomy
Plastic Surgery Physician 208200000X
License numbers
A120821 CA
273643 MA
Self-reported in NPPES; status is on the state search
Practice location
909 S Fair Oaks Avenue, Pasadena, CA 91105
Phone
(626) 389-9300
Enumerated
Apr 4, 2012
Record last updated
Sep 19, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(626) 389-9336
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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Verify Caroline 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 A120821
    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

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54% fewer Medicare Part D claims than the average plastic surgery physician in 2024

43 Medicare Part D claims for 21 beneficiaries, against an average of 93 among the 3,527 providers of this specialty who prescribed in Part D.

  1. Caroline Yao43
  2. Specialty average93

Most prescribed

  1. Cephalexin17 claims
  2. Neomycin-Polymyxin-Dexameth12 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.

Caroline Yao among 894 plastic surgery physician records in California

Caroline Yao, M.D. is one of 894 plastic surgery physician records with a practice address in California. 79% 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 77% of them.

  • NPI issued2012 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 39% of these records are
  • Record last updated2019 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Plastic Surgery Physician providers in California

There are 894 plastic surgery physician records in California.

The 8 plastic surgery physician records with the nearest ZIP codes

  1. Omar Ahmed, MDPasadena, CA 911051104970540
  2. James Andersen, MDPasadena, CA 911051295831741
  3. Carlitos ChenPasadena, CA 911051487272647
  4. Brian Cox, M.D.Pasadena, CA 911051952307985
  5. Stephen Duffy, M.D.Pasadena, CA 911051073763447
  6. Nima Naghshineh, M.D.Pasadena, CA 911051316103799
  7. Martin O'Toole, M.D.Pasadena, CA 911051063504058
  8. Adam O'Toole, M.D.Pasadena, CA 911051467795575

Common questions

What is Caroline Yao, M.D.'s NPI number?

Caroline Yao, M.D.'s National Provider Identifier (NPI) is 1790041697, issued on Apr 4, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Caroline Yao, M.D. located?

The NPPES record lists a practice address at 909 S Fair Oaks Avenue, Pasadena, CA, 91105. Phone: (626) 389-9300. Providers update this record themselves, so call before visiting.

How can I verify Caroline Yao, M.D.'s license?

NPPES lists California license number A120821, 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 Caroline Yao, M.D. prescribe under Medicare Part D?

In 2024, Caroline Yao, M.D. had 43 Medicare Part D claims for 21 beneficiaries; the average among plastic surgery physician prescribers was 93. 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.