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UDAY CHAUHAN MD
NPI 1285213603
Internal Medicine - Infectious Disease in Whittier, CA

Active since April 04, 2021PECOS EnrolledAccepts Medicare Assignment
9080 COLIMA RD, WHITTIER, CA 90605(562) 980-6969(559) 272-0317 Get Directions Write a Review

NPPES record last updated: July 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 6, 2026, May 13, 2025, Apr 4, 2021 (3 updates tracked since 2021).

About Uday Chauhan Md NPPES

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

UDAY CHAUHAN MD (NPI 1285213603) is an individual infectious disease provider in Whittier, California, licensed in California (A191823) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2026).

NPPES Registry Identity

NPI1285213603
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameUDAY CHAUHANCredential: MD
Location Address9080 COLIMA RDWhittier, CA 90605-1600
Mailing Address18085 Lemongrass AveYorba Linda, CA 92886-1937
Phone(562) 980-6969
Fax(559) 272-0317
Sole ProprietorYes
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2026
Enumeration DateApril 4, 2021
Last NPPES UpdateJuly 6, 20263 updates tracked since enumeration
NPPES CertifiedJuly 6, 2026
✔ NPI 1285213603 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CA · A191823
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License A191823 (CA)
9080 COLIMA RD, Whittier, CA 90605
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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 and accepts Medicare assignment

Uday Chauhan Md 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 ID9739520867
PECOS Enrollment IDI20240710003157
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 Uday Chauhan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Uday Chauhan MD PC
Same address
Infectious Disease
9080 COLIMA RD
Whittier, CA 90605
  • Reassigned Medicare billing, California enrollment
NPI 1144072653 (562) 980-6969

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90605 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

AHMC WHITTIER HOSPITAL MEDICAL
General Acute Care Hospital
9080 COLIMA RD
WHITTIER, CA 90605
Los Angeles County (562) 945-3561
DR. ADRIAN DANIEL CRISAN M.D.
Emergency Medicine
9080 COLIMA RD
WHITTIER, CA 90605
Los Angeles County (562) 907-1565
STEVEN MICHAEL GIORDANO NP
Nurse Practitioner
9080 COLIMA RD
WHITTIER, CA 90605
Los Angeles County (562) 907-1565
DR. DOUGLAS PAUL SLABAUGH DO
Emergency Medicine
9080 COLIMA RD
WHITTIER, CA 90605
Los Angeles County (562) 907-1565
COLIMA ANESTHESIA GROUP INC
Anesthesiology (Pain Medicine)
9080 COLIMA RD
WHITTIER, CA 90605
Los Angeles County (949) 588-2190
MRS. LAUREN OSTROSKY DIAB PA
Physician Assistant
9080 COLIMA RD
WHITTIER, CA 90605
Los Angeles County (562) 945-3561
UDAY CHAUHAN MD PC
Internal Medicine (Infectious Disease)
9080 COLIMA RD
WHITTIER, CA 90605
Los Angeles County (562) 980-6969
KURT KAMEL MD INC
Anesthesiology (Pain Medicine)
9080 COLIMA RD
WHITTIER, CA 90605
Los Angeles County (949) 588-2190

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 Uday Chauhan's NPI number?

The NPI number for Uday Chauhan is 1285213603. It was assigned to this individual provider in the NPPES registry on April 4, 2021.

Where is Uday Chauhan located?

Uday Chauhan practices at 9080 Colima Rd, Whittier, CA 90605. The listed phone number is (562) 980-6969.

What is Uday Chauhan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Uday Chauhan enrolled in Medicare?

Yes. Uday Chauhan 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 Uday Chauhan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Uday Chauhan reassigns Medicare benefits to Uday Chauhan MD PC (Whittier, 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 Uday Chauhan'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 Uday Chauhan was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.