JOANN LIN
NPI 1790438208
Nurse Practitioner - Primary Care in San Francisco, CA
About Joann Lin NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANN LIN (NPI 1790438208) is an individual primary care provider in San Francisco, California, licensed in California (2021083794) and active in the NPI registry since February 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2021).
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
Joann Lin 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 Joann Lin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94133
- Reassigned Medicare billing, California enrollment
- 176 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 13
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 94133 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.
SAN FRANCISCO, CA 94133
SAN FRANCISCO, CA 94133
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 Joann Lin's NPI number?
The NPI number for Joann Lin is 1790438208. It was assigned to this individual provider in the NPPES registry on February 3, 2022.
Where is Joann Lin located?
Joann Lin practices at 1520 Stockton St, San Francisco, CA 94133. The listed phone number is (415) 391-9686.
What is Joann Lin's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.
Is Joann Lin enrolled in Medicare?
Yes. Joann Lin 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 Joann Lin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joann Lin reassigns Medicare benefits to North East Medical Services (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 Joann Lin'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 Joann Lin was last updated on March 8, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Joann Lin · NPI 1790438208
Primary Care physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since February 3, 2022.
## Identity
- **NPI:** 1790438208 (Entity type: Individual)
- **Enumerated:** February 3, 2022
- **Primary specialty:** Nurse Practitioner - Primary Care · taxonomy 363LP2300X
- **State license:** 2021083794 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1520 STOCKTON ST, San Francisco, CA 94133-3354
- **Phone:** (415) 391-9686
## 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:** North East Medical Services (NPI 1518911304, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** March 8, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1790438208) · Data from the CMS NPPES public registry.