Samuel Eustace Dey, M.D.
Psychiatry Physician · Riverside, CA
Samuel Eustace Dey, M.D. is a psychiatry physician with a practice address in Riverside, California, and NPI 1447271242, issued on Jul 21, 2006. Check the license (California 00G549970, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samuel Eustace Dey
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 00G549970 CA
Self-reported in NPPES; status is on the state search - Practice location
- 7344 Magnolia Ave Ste 200, Riverside, CA 92504
- Phone
- (951) 341-8930
- Enumerated
- Jul 21, 2006
- Record last updated
- Feb 3, 2026
- Fax
- (951) 341-8932
- Medicaid ID
- 00G549970 CA
- Medicare enrollment
- Enrolled (PECOS I20040726000743); may accept Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify Samuel Eustace Dey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 00G549970Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% more Medicare Part D claims than the average psychiatry physician in 2024
1,724 Medicare Part D claims for 70 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Escitalopram Oxalate255 claims
- Aripiprazole248 claims
- Quetiapine Fumarate125 claims
- Buspirone Hcl94 claims
- Trazodone Hcl82 claims
- Trintellix66 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: $65.88
4 payments; by number, the most common kind was food and beverage; the largest payer was Alkermes, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 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
- Neighborhood Medical Clinic OF Riverside IncRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel Eustace Dey among 8,673 psychiatry physician records in California
Samuel Eustace Dey, 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated1983 · median 2005 among the 3,295 with a school on file
- Record last updated2026 · 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
- Reynaldo Abejuela, M.D.Riverside, CA 925041225255185
- Lilian Caylan, MDRiverside, CA 925051871660696
- Brendan Coyne, MDRiverside, CA 925031376431585
- Daphne DuRiverside, CA 925031780428599
- Lauren Dugan, MDRiverside, CA 925031710779004
- Christopher Fernandes, DORiverside, CA 925031700621513
- Daniel Hackett, MDRiverside, CA 925051982775961
- Nina Hoang, MDRiverside, CA 925031306638887
Common questions
What is Samuel Eustace Dey, M.D.'s NPI number?
Samuel Eustace Dey, M.D.'s National Provider Identifier (NPI) is 1447271242, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Eustace Dey, M.D. located?
The NPPES record lists a practice address at 7344 Magnolia Ave Ste 200, Riverside, CA, 92504. Phone: (951) 341-8930. Providers update this record themselves, so call before visiting.
How can I verify Samuel Eustace Dey, M.D.'s license?
NPPES lists California license number 00G549970, 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 Samuel Eustace Dey, M.D. prescribe under Medicare Part D?
In 2024, Samuel Eustace Dey, M.D. had 1,724 Medicare Part D claims for 70 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.