Roberto Castanos, M.D.
Psychiatry Physician · Riverside, CA
Roberto Castanos, M.D. is a psychiatry physician with a practice address in Riverside, California, and NPI 1184914970, issued on Apr 13, 2011. Check the license (California A122519, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roberto Castanos
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A122519 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3390 University Ave Ste 115, Riverside, CA 92501
- Phone
- (844) 827-8000
- Enumerated
- Apr 13, 2011
- Record last updated
- May 25, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150603002887); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 2011
- 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 3390 University Ave Ste 115
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Henry Yang, MDNeurology Physician1063973212
Verify Roberto Castanos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A122519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average psychiatry physician in 2024
412 Medicare Part D claims for 27 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Clonazepam51 claims
- Bupropion Xl40 claims
- Mirtazapine34 claims
- Quetiapine Fumarate31 claims
- Trazodone Hcl24 claims
- Alprazolam21 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.
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roberto Castanos among 8,673 psychiatry physician records in California
Roberto Castanos, 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 2011, is newer than 63% of them.
- NPI issued2011 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2011 · median 2005 among the 3,295 with a school on file
- Record last updated2018 · 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).
134 psychiatry physician records list a practice address in Riverside
They are 134 of the 13,893 NPPES records with a practice address in Riverside, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Riverside → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Christopher Fichtner, MDRiverside, CA 925011265529515
- Ramez GhanbariRiverside, CA 925011124479332
- Kevin Gutierrez, MDRiverside, CA 925011700405172
- Axeline Johnson, MDRiverside, CA 925011649776899
- Peter Ureste, M.D.Riverside, CA 925011588077960
- Thomas Bowlus, MDRiverside, CA 925031154492072
- Jerry Dennis, M.D.Riverside, CA 925031841344348
- Loretta Howitt, MDRiverside, CA 925031972670826
Common questions
What is Roberto Castanos, M.D.'s NPI number?
Roberto Castanos, M.D.'s National Provider Identifier (NPI) is 1184914970, issued on Apr 13, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Roberto Castanos, M.D. located?
The NPPES record lists a practice address at 3390 University Ave Ste 115, Riverside, CA, 92501. Phone: (844) 827-8000. Providers update this record themselves, so call before visiting.
How can I verify Roberto Castanos, M.D.'s license?
NPPES lists California license number A122519, 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 Roberto Castanos, M.D. prescribe under Medicare Part D?
In 2024, Roberto Castanos, M.D. had 412 Medicare Part D claims for 27 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.