Catherine A. Walsh, M.D.
Plastic Surgery Physician · Ontario, CA
Catherine A. Walsh, M.D. is a plastic surgery physician with a practice address in Ontario, California, and NPI 1093834491, issued on Mar 28, 2007. Check the license (California A116474, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Catherine A. Walsh
- Credential
- M.D.
- Primary taxonomy
- Plastic Surgery Physician 208200000X
- License numbers
- A116474 CA
2005019822 MO
Self-reported in NPPES; status is on the state search - Practice location
- 2295 S Vineyard Ave Bldg D, Ontario, CA 91761
- Phone
- (909) 724-3206
- Enumerated
- Mar 28, 2007
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111026000291); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest plastic surgery physician records → All 894 in California → Look up another NPI →
Also registered at 2295 S Vineyard Ave Bldg D
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joanna Lim, M.D.Surgery Physician1851612675
- David LuPharmacist1265914519
- Gustavo Martinez, RPHPharmacist1619561818
- Michael Oh, M.D.Neurology Physician1972763555
- Dzung PhamCertified Respiratory Therapist1457835837
- Stefanie Varela, N.P.Nurse Practitioner1447322672
Verify Catherine A. Walsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A116474Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average plastic surgery physician in 2024
39 Medicare Part D claims for 24 beneficiaries, against an average of 93 among the 3,527 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 14 claims were for opioids.
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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupRedlands, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine A. Walsh among 894 plastic surgery physician records in California
Catherine A. Walsh, 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 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2005 · median 2002 among the 346 with a school on file
- Record last updated2021 · 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.
All 894 in California → Every provider in Ontario → Plastic Surgery Physician nationwide →
The 8 plastic surgery physician records with the nearest ZIP codes
- Ossama Ascha, M.D.Pomona, CA 917671659422558
- Devdas Wali, M.D.Pomona, CA 917681811909732
- Lindsay Monroe, NPUpland, CA 917861225741978
- Dianne Wu, M.D.Alhambra, CA 918011770502718
- Hector Salazar-Reyes, M.D.Chula Vista, CA 919101467604058
- Octavio Cardona-Loya, M.D.,F.A.C.S.Chula Vista, CA 919111578585873
- Brandon RossChula Vista, CA 919151235602236
- Stephen Genender, M.D.Studio City, CA 916041134502784
Common questions
What is Catherine A. Walsh, M.D.'s NPI number?
Catherine A. Walsh, M.D.'s National Provider Identifier (NPI) is 1093834491, issued on Mar 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Catherine A. Walsh, M.D. located?
The NPPES record lists a practice address at 2295 S Vineyard Ave Bldg D, Ontario, CA, 91761. Phone: (909) 724-3206. Providers update this record themselves, so call before visiting.
How can I verify Catherine A. Walsh, M.D.'s license?
NPPES lists California license number A116474, 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 Catherine A. Walsh, M.D. prescribe under Medicare Part D?
In 2024, Catherine A. Walsh, M.D. had 39 Medicare Part D claims for 24 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.