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CHRISTOPHER S. WHANG MD
NPI 1639257124
Otolaryngology in Modesto, CA

Active since November 01, 2006PECOS Enrolled
4601 DALE RD, MODESTO, CA 95356(209) 557-1000 Get Directions Write a Review

NPPES record last updated: December 9, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Christopher S. Whang Md NPPES

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

CHRISTOPHER S. WHANG MD (NPI 1639257124) is an individual otolaryngology provider in Modesto, California, licensed in California (A84865) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639257124
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameCHRISTOPHER S. WHANGCredential: MD
Location Address4601 DALE RDModesto, CA 95356-9718
Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262
Phone(209) 557-1000
Sole ProprietorNo
Enumeration DateNovember 1, 2006
Last NPPES UpdateDecember 9, 2021
✔ NPI 1639257124 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in CA · A84865
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
4601 DALE RD, Modesto, CA 95356
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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)

Christopher S. Whang Md 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 Christopher Whang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
25 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

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 95356 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
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.

NATHAN STUEMPFIG D.O.
Emergency Medicine
4601 DALE RD
MODESTO, CA 95356
Stanislaus County (209) 715-1780
RAYVEN ZHANG
Student in an Organized Health Care Education/Training Program
4601 DALE RD
MODESTO, CA 95356
Stanislaus County (916) 856-2837
JAY PATEL
Student in an Organized Health Care Education/Training Program
4601 DALE RD
MODESTO, CA 95356
Stanislaus County (209) 735-5000
BRIAN E. DOLNICK DO
Internal Medicine
4601 DALE RD
MODESTO, CA 95356
Stanislaus County (209) 557-1000
WEI LOONG GLENN KOH MD
Surgery
4601 DALE RD, SUITE 4A5
MODESTO, CA 95356
Stanislaus County (925) 200-1811
DR. JOSHUA MCKEE ANDERSON M.D.
Internal Medicine (Gastroenterology)
4601 DALE RD
MODESTO, CA 95356
Stanislaus County (209) 735-7200
JOSHUA MICHAEL
Respiratory Therapist, Registered
4601 DALE RD
MODESTO, CA 95356
Stanislaus County (209) 735-7590
YUECHIAO LIANG PHARM.D.
Pharmacist
4601 DALE RD
MODESTO, CA 95356
Stanislaus County (209) 735-6950

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 Christopher Whang's NPI number?

The NPI number for Christopher Whang is 1639257124. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Christopher Whang located?

Christopher Whang practices at 4601 Dale Rd, Modesto, CA 95356. The listed phone number is (209) 557-1000.

What is Christopher Whang's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Christopher Whang enrolled in Medicare?

Yes. Christopher Whang is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Christopher Whang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Whang reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, 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 Christopher Whang'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 Christopher Whang was last updated on December 9, 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.