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DR. TSING-TONG KWOK M.D.
NPI 1568559946
Internal Medicine in Fresno, CA

Active since October 06, 2006PECOS Enrolled
540 E HERNDON AVE STE 102, FRESNO, CA 93720(559) 442-0855(559) 442-0864 Get Directions Write a Review

NPPES record last updated: April 29, 2013. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Tsing-tong Kwok M.d. NPPES

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

DR. TSING-TONG KWOK M.D. (NPI 1568559946) is an individual internal medicine provider in Fresno, California, licensed in California (A31586) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1568559946
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. TSING-TONG KWOKCredential: M.D.
Location Address540 E HERNDON AVE STE 102Fresno, CA 93720-2907
Mailing Address540 E. Herndon Ave., Suite 102Fresno, CA 93720 · (559) 442-0855 · Fax (559) 442-0864
Phone(559) 442-0855
Fax(559) 442-0864
Sole ProprietorNo
Enumeration DateOctober 6, 2006
Last NPPES UpdateApril 29, 2013
✔ NPI 1568559946 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A31586
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
540 E HERNDON AVE STE 102, Fresno, CA 93720
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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. Tsing-tong Kwok M.d. 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 Tsing-tong Kwok reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Saint Agnes Medical Center
0.7 mi
General Acute Care Hospital
1303 E HERNDON AVE
Fresno, CA 93720
  • Reassigned Medicare billing, California enrollment
  • 181 clinicians in this Medicare group
NPI 1205845567 (559) 450-3000

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 93720 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
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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 6

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

DR. JENNIFER N DAVIES M.D.
Otolaryngology
540 E HERNDON AVE STE 102
FRESNO, CA 93720
Fresno County (559) 768-3682
TSING-TONG KWOK, M.D. INC
Internal Medicine
540 E HERNDON AVE STE 102
FRESNO, CA 93720
Fresno County (559) 442-0855
DR. DAVID LAWRENCE HICKS M.D.
Otolaryngology (Facial Plastic Surgery)
540 E HERNDON AVE STE 102
FRESNO, CA 93720
Fresno County (559) 768-3682
NICHOLAS OTTLEY AUD
Audiologist
540 E HERNDON AVE STE 102
FRESNO, CA 93720
Fresno County (559) 768-3682
ENT ASSOCIATES OF FRESNO INC
Otolaryngology
540 E HERNDON AVE STE 102
FRESNO, CA 93720
Fresno County (805) 717-0726
GEORGE C HSU D.O.
Otolaryngology
540 E HERNDON AVE STE 102
FRESNO, CA 93720
Fresno County (559) 768-3682

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 Tsing-tong Kwok's NPI number?

The NPI number for Tsing-tong Kwok is 1568559946. It was assigned to this individual provider in the NPPES registry on October 6, 2006.

Where is Tsing-tong Kwok located?

Tsing-tong Kwok practices at 540 E Herndon Ave Ste 102, Fresno, CA 93720. The listed phone number is (559) 442-0855.

What is Tsing-tong Kwok's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Tsing-tong Kwok enrolled in Medicare?

Yes. Tsing-tong Kwok is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Tsing-tong Kwok's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tsing-tong Kwok reassigns Medicare benefits to Saint Agnes Medical Center (Fresno, 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 Tsing-tong Kwok'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 Tsing-tong Kwok was last updated on April 29, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.