DR. DEREK G FONG MD
NPI 1497876247
Internal Medicine - Gastroenterology in Harbor City, CA
About Dr. Derek G Fong Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DEREK G FONG MD (NPI 1497876247) is an individual gastroenterology provider in Harbor City, California, licensed in California (A77880) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Connecticut School Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses
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. Derek G Fong 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 Derek Fong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Harbor City, CA 90710
- Reassigned Medicare billing, California enrollment
- 13,921 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 90710 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.
HARBOR CITY, CA 90710
HARBOR CITY, CA 90710
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 Derek Fong's NPI number?
The NPI number for Derek Fong is 1497876247. It was assigned to this individual provider in the NPPES registry on April 2, 2007.
Where is Derek Fong located?
Derek Fong practices at 25825 Vermont Ave Department Of Gastroenterology, Harbor City, CA 90710. The listed phone number is (800) 780-1230.
What is Derek Fong's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Derek Fong enrolled in Medicare?
Yes. Derek Fong 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 Derek Fong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derek Fong reassigns Medicare benefits to Southern California Permanente Medical Group (Harbor 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 Derek Fong'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 Derek Fong was last updated on November 18, 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.
# Dr. Derek G Fong, MD · NPI 1497876247
Gastroenterology physician in Harbor City, California. Individual provider, active in the CMS NPPES registry since April 2, 2007.
## Identity
- **NPI:** 1497876247 (Entity type: Individual)
- **Enumerated:** April 2, 2007
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** A77880 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 25825 VERMONT AVE, DEPARTMENT OF GASTROENTEROLOGY, Harbor City, CA 90710-3518
- **Phone:** (800) 780-1230
## 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:** Southern California Permanente Medical Group (NPI 1598797011, Harbor City, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 2000
## Record status
- **NPPES last updated:** November 18, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1497876247) · Data from the CMS NPPES public registry.