REGENTS OF THE UNIVERSITY OF CA
NPI 1629061643
Internal Medicine - Hematology in Sacramento, CA
About Regents Of The University Of Ca NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REGENTS OF THE UNIVERSITY OF CA (NPI 1629061643) is a healthcare organization registered as a hematology in Sacramento, California and active in the NPI registry since August 2005. The organization lists Tammy Trovatten, Vice President, Gov't Reimbursement, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 8
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Regents Of The University Of Ca is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2,556Medicare enrollment records show 2,556 clinicians reassign Medicare billing to Regents Of The University Of Ca, which bills Medicare for the services they deliver. Of these, 305 practice at this address and 1,471 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 81
Nearest to this location (20)
See all 2,556Sacramento, CA 95817
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Medical Equipment Supplier Medicare DMEPOS 7
Medicare supplier enrollment and the product categories Uc Davis Medical Center carries, from the Medicare DMEPOS supplier directory.
Uc Davis Medical Center
DMEPOS supplier · Sacramento, CAOperated by Regents Of The University Of CaliforniaAccepts Medicare assignment
Uc Davis Medical Center agrees to accept the Medicare-approved amount as full payment for covered equipment and supplies. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Product Categories
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 Regents Of The University Of Ca's NPI number?
The NPI number for Regents Of The University Of Ca is 1629061643. It was assigned to this organization in the NPPES registry on August 24, 2005. The provider is also known as Regents/UCDPBG/IM Hemato.
Where is Regents Of The University Of Ca located?
Regents Of The University Of Ca is located at 4501 X St, Sacramento, CA 95817. The listed phone number is (916) 724-5803.
What is Regents Of The University Of Ca's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.
Is Regents Of The University Of Ca enrolled in Medicare?
Yes. Regents Of The University Of Ca is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Regents Of The University Of Ca?
According to the CMS Revalidation Reassignment List (October 2026 release), 2,556 clinicians in 81 Medicare specialties reassign their Medicare billing to Regents Of The University Of Ca. A 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 the clinician's services. The largest specialties are Nurse Practitioner (346), Internal Medicine (223) and Anesthesiology (188). Of these, 305 practice at this address and 1,471 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Regents Of The University Of Ca accept Medicare assignment for medical equipment?
Yes. As a Medicare medical equipment supplier, Uc Davis Medical Center accepts Medicare assignment: the supplier accepts the Medicare-approved amount as payment in full for covered equipment and supplies.
When was this NPI record last updated?
The NPPES record for Regents Of The University Of Ca was last updated on May 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.
# Regents Of The University Of Ca · NPI 1629061643
Hematology organization in Sacramento, California. Organization record, active in the CMS NPPES registry since August 24, 2005.
## Identity
- **NPI:** 1629061643 (Entity type: Organization)
- **Enumerated:** August 24, 2005
- **Primary specialty:** Internal Medicine - Hematology · taxonomy 207RH0000X
- **Also known as:** Regents/UCDPBG/IM Hemato (Other Name)
- **Organization subpart:** No
- **Authorized official:** Tammy Trovatten, VICE PRESIDENT, GOV'T REIMBURSEMENT
## Practice location
- **Address:** 4501 X ST, Sacramento, CA 95817-2229
- **Phone:** (916) 724-5803 · **Fax:** (916) 734-7946
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2,556 clinicians in 81 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (346), Internal Medicine (223), Anesthesiology (188); 305 practice at this address and 1,471 within 10 miles; [full list](https://npiprofile.com/npi/1629061643/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 16, 2025
- **Other identifiers:** Other CR0028 (CA); Other CI4127 (CA); Other DA4168 (CA); and 5 more
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Source: [NPI Profile](https://npiprofile.com/npi/1629061643) · Data from the CMS NPPES public registry.