REGENTS OF THE UNIV OF CA
NPI 1225021249
Internal Medicine - Endocrinology, Diabetes & Metabolism in Sacramento, CA

Q: What is Regents Of The Univ Of Ca's NPI number?

The NPI number for Regents Of The Univ Of Ca is 1225021249. It was assigned to this organization in the NPPES registry on August 24, 2005. The provider is also known as Regents UCDPBG IM ENDOCR.

Q: What is Regents Of The Univ Of Ca's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Active since August 24, 2005

4860 Y ST, SACRAMENTO, CA 95817(916) 734-8046(916) 734-2732 Get Directions Write a Review

NPPES record last updated: May 16, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 16, 2025, Aug 9, 2023 (2 updates tracked since 2023).

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About Regents Of The Univ Of Ca NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

REGENTS OF THE UNIV OF CA (NPI 1225021249) is a healthcare organization registered as an endocrinology, diabetes & metabolism 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

NPI1225021249

Entity TypeOrganization

Primary Taxonomy207RE0101X

Legal Business NameREGENTS OF THE UNIV OF CA

Location Address4860 Y STSacramento, CA 95817-2307

Mailing Address10850 White Rock RdRancho Cordova, CA 95670-6044 · (916) 734-9200 · Fax (916) 734-9661

Phone(916) 734-8046

Fax(916) 734-2732

Organization SubpartNo

Authorized OfficialTammy TrovattenVice President, Gov't Reimbursement · (916) 855-2315

Enumeration DateAugust 24, 2005

Last NPPES UpdateMay 16, 20252 updates tracked since enumeration

NPPES CertifiedMay 16, 2025

✔ NPI 1225021249 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

4860 Y ST, Sacramento, CA 95817

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Other Names 1

Other NameRegents Ucdpbg Im Endocr

Other Identifiers 8

OtherCI4127CA · Railroad Medicare Pin

OtherCN4400CA · Railroad Medicare Pin

OtherDE7275CA · Railroad Medicare Pin

MedicaidGR0021045CA

MedicaidGNP000070CA

OtherCN4844CA · Railroad Medicare Pin

OtherCR0028CA · Railroad Medicare Pin

OtherDA4168CA · Railroad Medicare Pin

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

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 Univ Of Ca is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2,556

Medicare enrollment records show 2,556 clinicians reassign Medicare billing to Regents Of The Univ 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

Nurse Practitioner346

Internal Medicine223

Anesthesiology188

Pediatric Medicine174

Diagnostic Radiology169

Emergency Medicine118

Certified Registered Nurse Anesthetist (CRNA)103

Orthopedic Surgery100

73 other specialties1,135

Nearest to this location (20)

See all 2,556

Mehrdad Abedi, M.D.

Hematology/Oncology

NPI 1467459222

4501 X ST STE 3016
Sacramento, CA 95817

(916) 734-5981

✔ PECOS✔ Accepts MedicareSame address

Hira Abidi, MD

General Surgery

NPI 1528472800

4501 X ST STE 3010
Sacramento, CA 95817

(919) 272-5347

✔ PECOS✔ Accepts MedicareSame address

Ashna Aggarwal, MD

Pathology

NPI 1235624362

4400 V ST
Sacramento, CA 95817

(916) 734-5988

✔ PECOS✔ Accepts MedicareSame address

Tessnim Ahmad, MD

Ophthalmology

NPI 1275161150

4860 Y ST
Sacramento, CA 95817

(916) 734-6602

✔ PECOS✔ Accepts MedicareSame address

Nicole Ahmadi, MD

Obstetrics/Gynecology

NPI 1639759590

4860 Y ST STE 2500
Sacramento, CA 95817

(916) 734-1039

✔ PECOS✔ Accepts MedicareSame address

Dornazsadat Alebrahim, MD

Anesthesiology

NPI 1073132585

4301 X ST
Sacramento, CA 95817

(916) 734-2011

✔ PECOS✔ Accepts MedicareSame address

Monikankana Alem, MD

Family Practice

NPI 1275095259

4860 Y ST STE 1600
Sacramento, CA 95817

(916) 734-3630

✔ PECOS✔ Accepts MedicareSame address

Robert Allen, MD

Hand Surgery

NPI 1700876026

4860 Y ST STE 1700
Sacramento, CA 95817

(916) 734-2700

✔ PECOS✔ Accepts MedicareSame address

Edris Aman, M.D.

Cardiovascular Disease (Cardiology)

NPI 1437448511

4860 Y ST STE 200
Sacramento, CA 95817

(916) 816-8967

✔ PECOS✔ Accepts MedicareSame address

Kwan-Keat Ang

Internal Medicine

NPI 1447887666

4150 V ST # 1100
Sacramento, CA 95817

(916) 734-2737

✔ PECOSSame address

Neha Antil, MD

Diagnostic Radiology

NPI 1649049552

4860 Y ST # 3100
Sacramento, CA 95817

(650) 441-6844

✔ PECOS✔ Accepts MedicareSame address

Caren Armstrong, MD, PHD

Epileptologists

NPI 1215321864

4860 Y ST
Sacramento, CA 95817

(916) 734-6280

✔ PECOSSame address

Lydia Aye, D.O.

Gastroenterology

NPI 1174744577

4301 X ST
Sacramento, CA 95817

(916) 734-2011

✔ PECOS✔ Accepts MedicareSame address

Sharyn Babbitt, CRNA

Certified Registered Nurse Anesthetist (CRNA)

NPI 1841338985

4150 V STREET, PSSB STE 1200 ANESTHESIOLOGY AND PAIN MEDICINE
Sacramento, CA 95817

(916) 734-7985

✔ Accepts MedicareSame address

Angela Bassal, MD

Hospitalist

NPI 1265019756

4150 V ST # 1100
Sacramento, CA 95817

(916) 734-2737

✔ PECOS✔ Accepts MedicareSame address

Derek Bays, MD

Infectious Disease

NPI 1932541257

4610 X ST
Sacramento, CA 95817

(916) 816-0421

✔ PECOS✔ Accepts MedicareSame address

Natalie Beck, MD

Nephrology

NPI 1881082519

4150 V ST STE 3500
Sacramento, CA 95817

(916) 734-3774

✔ PECOS✔ Accepts MedicareSame address

Willis Bowman, M.D.

Pulmonary Disease

NPI 1477970697

4150 V ST # 3400
Sacramento, CA 95817

(916) 734-3564

✔ PECOS✔ Accepts MedicareSame address

Allison Brashear, MD

Neurology

NPI 1881673713

4610 X ST STE 3101
Sacramento, CA 95817

(916) 734-1322

✔ PECOSSame address

Avery Braun, DO

Urology

NPI 1972033975

4860 Y ST STE 2200
Sacramento, CA 95817

(916) 734-0527

✔ PECOS✔ Accepts MedicareSame address

See all 2,556 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Univ Of Ca's NPI number?

The NPI number for Regents Of The Univ Of Ca is 1225021249. It was assigned to this organization in the NPPES registry on August 24, 2005. The provider is also known as Regents UCDPBG IM ENDOCR.

Where is Regents Of The Univ Of Ca located?

Regents Of The Univ Of Ca is located at 4860 Y St, Sacramento, CA 95817. The listed phone number is (916) 734-8046.

What is Regents Of The Univ Of Ca's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Regents Of The Univ Of Ca enrolled in Medicare?

Yes. Regents Of The Univ Of Ca is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Regents Of The Univ 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 Univ 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.

When was this NPI record last updated?

The NPPES record for Regents Of The Univ 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.