Karen Chen, M.D.
Psychiatry Physician · Costa Mesa, CA
Karen Chen, M.D. is a psychiatry physician with a practice address in Costa Mesa, California, and NPI 1598023103, issued on May 2, 2012. Check the license (California A136429, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karen Chen
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A136429 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2900 Bristol St Ste B201, Costa Mesa, CA 92626
- Phone
- (855) 867-5551
- Enumerated
- May 2, 2012
- Record last updated
- Nov 25, 2025
- Medicare enrollment
- Enrolled (PECOS I20260403001259); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 2900 Bristol St Ste B201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maryam ObeydMarriage & Family Therapist1932884657
Verify Karen Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A136429Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Prohealth Partners, A Medical GroupCosta Mesa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Chen among 8,673 psychiatry physician records in California
Karen Chen, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% 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 66% of them.
- NPI issued2012 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2012 · median 2005 among the 3,295 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Costa Mesa → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Tina Allee, M.D.Costa Mesa, CA 926261386960904
- Alejandro Alva, M.D.Costa Mesa, CA 926261801816764
- Daniel Amen, M.D.Costa Mesa, CA 926261831121375
- Britton Arey, MDCosta Mesa, CA 926261295833374
- Robert Bota, MDCosta Mesa, CA 926261407990773
- Borhan DarmalCosta Mesa, CA 926261679065536
- Daniel Emina, M.D.Costa Mesa, CA 926261861633786
- Jennifer Farrell, M.D.Costa Mesa, CA 926261558577403
Common questions
What is Karen Chen, M.D.'s NPI number?
Karen Chen, M.D.'s National Provider Identifier (NPI) is 1598023103, issued on May 2, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Karen Chen, M.D. located?
The NPPES record lists a practice address at 2900 Bristol St Ste B201, Costa Mesa, CA, 92626. Phone: (855) 867-5551. Providers update this record themselves, so call before visiting.
How can I verify Karen Chen, M.D.'s license?
NPPES lists California license number A136429, 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.
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.