DENNIS S. KWOK MD
NPI 1083799753
Family Medicine in Fremont, CA
About Dennis S. Kwok Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS S. KWOK MD (NPI 1083799753) is an individual family medicine provider in Fremont, California, licensed in California (A64274) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Dennis S. Kwok 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.
Medicare Billing Reassignment
Medicare enrollment records show Dennis Kwok reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
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 94538 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
FREMONT, CA 94538
FREMONT, CA 94538
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 Dennis Kwok's NPI number?
The NPI number for Dennis Kwok is 1083799753. It was assigned to this individual provider in the NPPES registry on October 25, 2006.
Where is Dennis Kwok located?
Dennis Kwok practices at 39400 Paseo Padre Pkwy, Fremont, CA 94538. The listed phone number is (510) 795-3000.
What is Dennis Kwok's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Dennis Kwok enrolled in Medicare?
Yes. Dennis Kwok 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 Dennis Kwok's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Kwok reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, 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 Dennis 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 Dennis Kwok was last updated on December 13, 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.
# Dennis S. Kwok, MD · NPI 1083799753
Family Medicine physician in Fremont, California. Individual provider, active in the CMS NPPES registry since October 25, 2006.
## Identity
- **NPI:** 1083799753 (Entity type: Individual)
- **Enumerated:** October 25, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A64274 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 39400 PASEO PADRE PKWY, Fremont, CA 94538-2310
- **Phone:** (510) 795-3000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1639252604, Redwood City, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** December 13, 2021
- **Other identifiers:** Medicaid 00A642740 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1083799753) · Data from the CMS NPPES public registry.