ANNETTE Y. KWON MD
NPI 1417009630
Internal Medicine - Gastroenterology in San Francisco, CA
About Annette Y. Kwon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANNETTE Y. KWON MD (NPI 1417009630) is an individual gastroenterology provider in San Francisco, California, licensed in California (A90599) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Johns Hopkins University School Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
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
Annette Y. Kwon 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 Annette Kwon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94115
- Reassigned Medicare billing, California enrollment
- 5 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 10
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 94115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
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 Annette Kwon's NPI number?
The NPI number for Annette Kwon is 1417009630. It was assigned to this individual provider in the NPPES registry on January 17, 2007.
Where is Annette Kwon located?
Annette Kwon practices at 2100 Webster St Suite 423, San Francisco, CA 94115. The listed phone number is (415) 923-3050.
What is Annette Kwon's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Annette Kwon enrolled in Medicare?
Yes. Annette Kwon 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 Annette Kwon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Annette Kwon reassigns Medicare benefits to Pacific Internal Medicine Associates (San Francisco, 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 Annette Kwon'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 Annette Kwon was last updated on July 20, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Annette Y. Kwon, MD · NPI 1417009630
Gastroenterology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since January 17, 2007.
## Identity
- **NPI:** 1417009630 (Entity type: Individual)
- **Enumerated:** January 17, 2007
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** A90599 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2100 WEBSTER ST, SUITE 423, San Francisco, CA 94115-2373
- **Phone:** (415) 923-3050 · **Fax:** (415) 563-4867
## 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:** Pacific Internal Medicine Associates (NPI 1821100298, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** July 20, 2010
- **Other identifiers:** Medicare UPIN I47398; Medicaid 00A905990 (CA); Medicare ID-Type Unspecified 00A905990
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Source: [NPI Profile](https://npiprofile.com/npi/1417009630) · Data from the CMS NPPES public registry.