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DR. SIVAPRIYA THUMATI REDDY DO
NPI 1891909768
Pediatrics - Neonatal-Perinatal Medicine in Fontana, CA

Active since May 10, 2007PECOS Enrolled
9961 SIERRA AVE, KAISER FONTANA - NICU, FONTANA, CA 92335(909) 427-5559 Get Directions Write a Review

NPPES record last updated: December 1, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Sivapriya Thumati Reddy Do NPPES

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

DR. SIVAPRIYA THUMATI REDDY DO (NPI 1891909768) is an individual neonatal-perinatal medicine provider in Fontana, California, licensed in California (20A8674) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891909768
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameDR. SIVAPRIYA THUMATI REDDYCredential: DO
Location Address9961 SIERRA AVE, KAISER FONTANA - NICUFontana, CA 92335-6720
Mailing Address9961 Sierra Ave, Kaiser Fontana - NicuFontana, CA 92335-6720 · (909) 427-5559
Phone(909) 427-5559
Sole ProprietorYes
Enumeration DateMay 10, 2007
Last NPPES UpdateDecember 1, 2021
NPPES CertifiedDecember 1, 2021
✔ NPI 1891909768 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in CA · 20A8674
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
9961 SIERRA AVE, Fontana, CA 92335
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sivapriya Thumati Reddy Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sivapriya Reddy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
Same address
Health Maintenance Organization
9961 SIERRA AVE
Fontana, CA 92335
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1952333460 (California)
  • 5,228 clinicians in this Medicare group
NPI 1689606196 (909) 427-3910

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

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.

SHEILA ANN VANALLEN PT
Physical Therapist
9961 SIERRA AVE, BUILDING 3A
FONTANA, CA 92335
San Bernardino County (909) 427-7727
MR. JAMES DAVID KILLEEN III M.D.
Pediatrics
9961 SIERRA AVE, KAISER PERMANENTE FONTANA - PEDIATRICS
FONTANA, CA 92335
San Bernardino County (909) 427-6960
MR. DHIRESH N PATEL RPH
Pharmacist
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 302-8018
JOSHUA MO MD
Pathology (Dermatopathology)
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-5000
MS. STELLA MARIS CARLOS R.D.
Dietitian, Registered
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 472-7185
KADETTE KELLY CRNA
Nurse Anesthetist, Certified Registered
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
YAEL STEINFELD NP
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910
SCOTT SWARTZ NP
Nurse Practitioner
9961 SIERRA AVE
FONTANA, CA 92335
San Bernardino County (909) 427-3910

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 Sivapriya Reddy's NPI number?

The NPI number for Sivapriya Reddy is 1891909768. It was assigned to this individual provider in the NPPES registry on May 10, 2007.

Where is Sivapriya Reddy located?

Sivapriya Reddy practices at 9961 Sierra Ave Kaiser Fontana - Nicu, Fontana, CA 92335. The listed phone number is (909) 427-5559.

What is Sivapriya Reddy's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Sivapriya Reddy enrolled in Medicare?

Yes. Sivapriya Reddy is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sivapriya Reddy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sivapriya Reddy reassigns Medicare benefits to Southern California Permanente Medical Group (Fontana, CA). The 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 Sivapriya Reddy'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 Sivapriya Reddy was last updated on December 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.