GREGORY WOOKOUN LEE M.D.
NPI 1649255282
Family Medicine in Richmond, CA
About Gregory Wookoun Lee M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY WOOKOUN LEE M.D. (NPI 1649255282) is an individual family medicine provider in Richmond, California, licensed in California (C54517) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.
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 (PECOS)
Gregory Wookoun Lee M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gregory Lee reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Richmond, CA 94801
- 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 94801 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 Gregory Lee's NPI number?
The NPI number for Gregory Lee is 1649255282. It was assigned to this individual provider in the NPPES registry on December 7, 2005.
Where is Gregory Lee located?
Gregory Lee practices at 901 Nevin Ave, Richmond, CA 94801. The listed phone number is (510) 307-1555.
What is Gregory Lee's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Gregory Lee enrolled in Medicare?
Yes. Gregory Lee is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gregory Lee's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Lee reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 Gregory Lee'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 Gregory Lee was last updated on December 15, 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.
# Gregory Wookoun Lee, M.D. · NPI 1649255282
Family Medicine physician in Richmond, California. Individual provider, active in the CMS NPPES registry since December 7, 2005.
## Identity
- **NPI:** 1649255282 (Entity type: Individual)
- **Enumerated:** December 7, 2005
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** C54517 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 901 NEVIN AVE, Richmond, CA 94801-3143
- **Phone:** (510) 307-1555
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1235226531, Richmond, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 15, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1649255282) · Data from the CMS NPPES public registry.