SHERFONG GEE D.O.
NPI 1639274772
Internal Medicine - Pulmonary Disease in San Leandro, CA
About Sherfong Gee D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHERFONG GEE D.O. (NPI 1639274772) is an individual pulmonary disease provider in San Leandro, California, licensed in California (20A7634) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS and is a graduate of College Of Osteo Med Of The Pacific At Pomona (1998).
NPPES Registry Identity
Specialties & Licenses 2
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
Sherfong Gee D.o. 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 Sherfong Gee 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94577 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.
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 Sherfong Gee's NPI number?
The NPI number for Sherfong Gee is 1639274772. It was assigned to this individual provider in the NPPES registry on September 13, 2006.
Where is Sherfong Gee located?
Sherfong Gee practices at 2500 Merced St, San Leandro, CA 94577. The listed phone number is (510) 454-1000.
What is Sherfong Gee's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Sherfong Gee enrolled in Medicare?
Yes. Sherfong Gee 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 Sherfong Gee's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sherfong Gee 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 Sherfong Gee'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 Sherfong Gee 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.
# Sherfong Gee, D.O. · NPI 1639274772
Pulmonary Disease physician in San Leandro, California. Individual provider, active in the CMS NPPES registry since September 13, 2006.
## Identity
- **NPI:** 1639274772 (Entity type: Individual)
- **Enumerated:** September 13, 2006
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** 20A7634 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2500 MERCED ST, San Leandro, CA 94577-4201
- **Phone:** (510) 454-1000
## 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:** College Of Osteo Med Of The Pacific At Pomona, class of 1998
## Record status
- **NPPES last updated:** December 9, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1639274772) · Data from the CMS NPPES public registry.