JOANNE LIN DO
NPI 1861029357
Internal Medicine - Gastroenterology in Sacramento, CA
About Joanne Lin Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANNE LIN DO (NPI 1861029357) is an individual gastroenterology provider in Sacramento, California, licensed in California (20A20535) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Joanne Lin Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Joanne Lin reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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 95817 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.
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
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 Joanne Lin's NPI number?
The NPI number for Joanne Lin is 1861029357. It was assigned to this individual provider in the NPPES registry on March 24, 2020.
Where is Joanne Lin located?
Joanne Lin practices at 4150 V St Ste 3500, Sacramento, CA 95817. The listed phone number is (916) 734-3751.
What is Joanne Lin's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Joanne Lin enrolled in Medicare?
Yes. Joanne Lin is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Joanne Lin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joanne Lin reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, CA). Each 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 Joanne 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 Joanne Lin was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Joanne Lin, DO · NPI 1861029357
Gastroenterology physician in Sacramento, California. Individual provider, active in the CMS NPPES registry since March 24, 2020.
## Identity
- **NPI:** 1861029357 (Entity type: Individual)
- **Enumerated:** March 24, 2020
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 20A20535 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4150 V ST STE 3500, Sacramento, CA 95817-1460
- **Phone:** (916) 734-3751
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1235322348, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1861029357) · Data from the CMS NPPES public registry.