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DR. AMBIKA GNANAM CHIDAMBARAM M.B.B.S
NPI 1831583483
Pediatrics - Pediatric Pulmonology in Sacramento, CA

Active since March 21, 2015PECOS EnrolledAccepts Medicare Assignment
2521 STOCKTON BLVD FL 3, SACRAMENTO, CA 95817(916) 734-3112 Get Directions Write a Review

NPPES record last updated: September 22, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 22, 2022, Jun 25, 2018 (2 updates tracked since 2018).

About Dr. Ambika Gnanam Chidambaram M.b.b.s NPPES

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

DR. AMBIKA GNANAM CHIDAMBARAM M.B.B.S (NPI 1831583483) is an individual pediatric pulmonology provider in Sacramento, California, licensed in California (A181569) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1831583483
Entity TypeIndividualFemale
Primary Taxonomy2080P0214X
Provider Legal NameDR. AMBIKA GNANAM CHIDAMBARAMCredential: M.B.B.S
Location Address2521 STOCKTON BLVD FL 3Sacramento, CA 95817-2207
Mailing Address2516 Stockton Blvd Fl 3Sacramento, CA 95817-2208 · (916) 734-3189
Phone(916) 734-3112
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateMarch 21, 2015
Last NPPES UpdateSeptember 22, 20222 updates tracked since enumeration
NPPES CertifiedSeptember 22, 2022
✔ NPI 1831583483 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric PulmonologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0214X
Licenses✔ Licensed in CA · A181569✔ Licensed in PA · MT212327
Definition
A pediatrician dedicated to the prevention and treatment of all respiratory diseases affecting infants, children and young adults. This specialist is knowledgeable about the growth and development of the lung, assessment of respiratory function in infants and children, and experienced in a variety of invasive and noninvasive diagnostic techniques.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
2521 STOCKTON BLVD FL 3, Sacramento, CA 95817
Open in Google Maps ↗

Secondary Practice Locations 2

Location 13401 civic center blvd, Division of Pediatric PulmonologyPhiladelphia, PA 19104 · Phone (215) 590-3498
Location 22040 W Charleston Blvd Ste 402Las Vegas, NV 89102-2250 · Phone (702) 671-2236 · Fax (702) 671-2233

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

Dr. Ambika Gnanam Chidambaram M.b.b.s 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.

PECOS PAC ID6709191091
PECOS Enrollment IDI20221007001789
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 Ambika Chidambaram reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of Ca
Same address
Pediatric Critical Care Medicine
2521 STOCKTON BLVD
Sacramento, CA 95817
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Regents Of The Univ Of Ca
  • 2,570 clinicians in this Medicare group
NPI 1104815067 (916) 734-3179

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 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. YVONNE LOUISE ROACH R N
Registered Nurse (Pediatric Oncology)
2521 STOCKTON BLVD FL 3
SACRAMENTO, CA 95817
Sacramento County (916) 734-7006
GAGE ANTHONY ALVERNAZ DO
Pediatrics (Pediatric Pulmonology)
2521 STOCKTON BLVD FL 3
SACRAMENTO, CA 95817
Sacramento County (800) 823-4543
NORIKO SATAKE MD
Pediatrics (Pediatric Hematology-Oncology)
2521 STOCKTON BLVD FL 3, PEDIATRIC SPECIALTY CLINIC, GLASSROCK BLDG
SACRAMENTO, CA 95817
Sacramento County (916) 734-2781

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 Ambika Chidambaram's NPI number?

The NPI number for Ambika Chidambaram is 1831583483. It was assigned to this individual provider in the NPPES registry on March 21, 2015.

Where is Ambika Chidambaram located?

Ambika Chidambaram practices at 2521 Stockton Blvd Fl 3, Sacramento, CA 95817. The listed phone number is (916) 734-3112.

What is Ambika Chidambaram's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Pulmonology, with taxonomy code 2080P0214X.

Is Ambika Chidambaram enrolled in Medicare?

Yes. Ambika Chidambaram 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 organization bills Medicare for Ambika Chidambaram's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ambika Chidambaram reassigns Medicare benefits to Regents Of The University Of Ca (Sacramento, 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 Ambika Chidambaram'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 Ambika Chidambaram was last updated on September 22, 2022. 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.