Katherine Stern, M.D.
Surgery Physician · Laguna Hills, CA
Katherine Stern, M.D. is a surgery physician with a practice address in Laguna Hills, California, and NPI 1376074740, issued on Mar 27, 2017. Check the license (California A158145, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Katherine Stern
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- A158145 CA
Self-reported in NPPES; status is on the state search - Practice location
- 24411 Health Center Dr Ste 350, Laguna Hills, CA 92653
- Phone
- (949) 457-7900
- Enumerated
- Mar 27, 2017
- Record last updated
- Oct 21, 2025
- Fax
- (949) 588-8719
- Medicare enrollment
- Enrolled (PECOS I20250710004308); accepts Medicare assignment
- Medical or professional school
- Irvine California College Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 24411 Health Center Dr Ste 350
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cassandra Braunstein, PA-SPhysician Assistant1700600129
- Sidney LuongPhysician Assistant1932983244
- Elsie Robertson, M.D.Surgery Physician1336671908
- Rahul Sharma, D.O.Vascular Surgery Physician1356634489
Verify Katherine Stern in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A158145Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average surgery physician in 2024
21 Medicare Part D claims for 14 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Industry payments in 2024: $193.79
2 payments; by number, the most common kind was food and beverage; the largest payer was Innovation Technologies Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- South Orange County Surgical Medical Group IncLaguna Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Stern among 3,118 surgery physician records in California
Katherine Stern, M.D. is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 86% of them.
- NPI issued2017 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2017 · median 2003 among the 1,901 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Laguna Hills → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Blake Ashley, M.D.Laguna Hills, CA 926531235150079
- Amy Bremner, MDLaguna Hills, CA 926531649461120
- Kenneth Deck, M.D.Laguna Hills, CA 926531871516765
- Nora Evans, M.D.Laguna Hills, CA 926531770509291
- Jacqueline Golsch, RNFALaguna Hills, CA 926531679497622
- Anna Houterman, MDLaguna Hills, CA 926531164637435
- Elvira Klause, M.DLaguna Hills, CA 926531518904580
- Chirag Patel, M.D.Laguna Hills, CA 926531598785891
Common questions
What is Katherine Stern, M.D.'s NPI number?
Katherine Stern, M.D.'s National Provider Identifier (NPI) is 1376074740, issued on Mar 27, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Stern, M.D. located?
The NPPES record lists a practice address at 24411 Health Center Dr Ste 350, Laguna Hills, CA, 92653. Phone: (949) 457-7900. Providers update this record themselves, so call before visiting.
How can I verify Katherine Stern, M.D.'s license?
NPPES lists California license number A158145, 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 Katherine Stern, M.D. prescribe under Medicare Part D?
In 2024, Katherine Stern, M.D. had 21 Medicare Part D claims for 14 beneficiaries; the average among surgery physician prescribers was 147. 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.