STEFAN URSU M.D., PH.D.
NPI 1629201561
Psychiatry & Neurology - Psychiatry in Riverside, CA
About Stefan Ursu M.d., Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEFAN URSU M.D., PH.D. (NPI 1629201561) is an individual psychiatry provider in Riverside, California, licensed in California (A124650) and active in the NPI registry since August 2009. He is enrolled in Medicare PECOS and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Stefan Ursu M.d., Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Stefan Ursu reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Riverside, CA 92503
- Reassigned Medicare billing, California enrollment
- 336 clinicians in this Medicare group
Colton, CA 92324
- Reassigned Medicare billing, California enrollment
- 208 clinicians in this Medicare group
Victorville, CA 92392
- Reassigned Medicare billing, California enrollment
- 124 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 3,111 clinicians in this Medicare group
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,554 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
RIVERSIDE, CA 92503
RIVERSIDE, CA 92503
RIVERSIDE, CA 92503
RIVERSIDE, CA 92503
RIVERSIDE, CA 92503
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Stefan Ursu's NPI number?
The NPI number for Stefan Ursu is 1629201561. It was assigned to this individual provider in the NPPES registry on August 26, 2009.
Where is Stefan Ursu located?
Stefan Ursu practices at 9990 County Farm Rd, Riverside, CA 92503. The listed phone number is (951) 358-5766.
What is Stefan Ursu's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Stefan Ursu enrolled in Medicare?
Yes. Stefan Ursu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Stefan Ursu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stefan Ursu reassigns Medicare benefits to 5 organizations: County Of Riverside (Riverside, CA), Cep America - Psychiatry PC (Colton, CA), High Desert Psychological Services (Victorville, CA), Ut Physicians (Houston, TX) and Baylor College Of Medicine (Houston, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stefan Ursu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Stefan Ursu was last updated on May 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Stefan Ursu, M.D., PH.D. · NPI 1629201561
Psychiatry physician in Riverside, California. Individual provider, active in the CMS NPPES registry since August 26, 2009.
## Identity
- **NPI:** 1629201561 (Entity type: Individual)
- **Enumerated:** August 26, 2009
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** A124650 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9990 COUNTY FARM RD, Riverside, CA 92503-3542
- **Phone:** (951) 358-5766
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): County Of Riverside (NPI 1073815007, Riverside, CA); Cep America - Psychiatry PC (NPI 1306408000, Colton, CA); High Desert Psychological Services (NPI 1104463371, Victorville, CA); Ut Physicians (NPI 1033157821, Houston, TX); Baylor College Of Medicine (NPI 1881026664, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** May 19, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1629201561) · Data from the CMS NPPES public registry.