Chase Robert Warren, M.D.
Psychiatry Physician · Santa Barbara, CA
Chase Robert Warren, M.D. is a psychiatry physician with a practice address in Santa Barbara, California, and NPI 1992140040, issued on May 2, 2013. Check the license (California A132051, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chase Robert Warren
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A132051 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 W Pueblo St, Santa Barbara, CA 93105
- Phone
- (805) 569-7259
- Enumerated
- May 2, 2013
- Record last updated
- Oct 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180803002547); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 400 W Pueblo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kristina Abramyan, FNPFamily Nurse Practitioner1114810686
- Tamanna AhluwaliaStudent in an Organized Health Care Education/Training Program1376338384
- Jung Hwa Ahn, MDStudent in an Organized Health Care Education/Training Program1083553572
- Fares Al-Khouja, MDStudent in an Organized Health Care Education/Training Program1497441778
- Sarah Anderson, MDStudent in an Organized Health Care Education/Training Program1154172872
Verify Chase Robert Warren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A132051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average psychiatry physician in 2024
17 Medicare Part D claims for 13 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
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
- Traditions Psychiatry Group, P.CSan Luis Obispo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chase Robert Warren among 8,673 psychiatry physician records in California
Chase Robert Warren, 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 2013, is newer than 69% of them.
- NPI issued2013 · 69% of these records are older, 29% 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 updated2019 · 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).
61 psychiatry physician records list a practice address in Santa Barbara
They are 61 of the 5,328 NPPES records with a practice address in Santa Barbara, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Santa Barbara → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Betty Ashley, M.D.Santa Barbara, CA 931051881796159
- Howard Babus, M.D.Santa Barbara, CA 931051184654949
- Steven Barnett, M.D.Santa Barbara, CA 931051336199272
- George Bifano, D.O.Santa Barbara, CA 931051083604920
- Dwight Carlson, MDSanta Barbara, CA 931051346444205
- Scott Dewhirst, M.D.Santa Barbara, CA 931051659799153
- Paul Erickson, M.D.Santa Barbara, CA 931051740346741
- Gary Hanson, M.D.Santa Barbara, CA 931051063547925
Common questions
What is Chase Robert Warren, M.D.'s NPI number?
Chase Robert Warren, M.D.'s National Provider Identifier (NPI) is 1992140040, issued on May 2, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Chase Robert Warren, M.D. located?
The NPPES record lists a practice address at 400 W Pueblo St, Santa Barbara, CA, 93105. Phone: (805) 569-7259. Providers update this record themselves, so call before visiting.
How can I verify Chase Robert Warren, M.D.'s license?
NPPES lists California license number A132051, 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 Chase Robert Warren, M.D. prescribe under Medicare Part D?
In 2024, Chase Robert Warren, M.D. had 17 Medicare Part D claims for 13 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.