KYI LAY SAN MD
NPI 1851742118
Internal Medicine in Manteca, CA
About Kyi Lay San Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KYI LAY SAN MD (NPI 1851742118) is an individual internal medicine provider in Manteca, California, licensed in California (A159779) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2003).
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
Kyi Lay San 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 Kyi San reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stockton, CA 95210
- 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 95337 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 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MANTECA, CA 95337
MANTECA, CA 95337
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 Kyi San's NPI number?
The NPI number for Kyi San is 1851742118. It was assigned to this individual provider in the NPPES registry on June 28, 2016.
Where is Kyi San located?
Kyi San practices at 165 Saint Dominics Dr Ste 201, Manteca, CA 95337. The listed phone number is (209) 823-2345.
What is Kyi San's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Kyi San enrolled in Medicare?
Yes. Kyi San 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 Kyi San's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kyi San reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, 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 Kyi San'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 Kyi San was last updated on December 20, 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.
# Kyi Lay San, MD · NPI 1851742118
Internal Medicine physician in Manteca, California. Individual provider, active in the CMS NPPES registry since June 28, 2016.
## Identity
- **NPI:** 1851742118 (Entity type: Individual)
- **Enumerated:** June 28, 2016
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A159779 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 165 SAINT DOMINICS DR STE 201, Manteca, CA 95337-7802
- **Phone:** (209) 823-2345 · **Fax:** (209) 239-1154
## 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 1548343510, Stockton, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** December 20, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1851742118) · Data from the CMS NPPES public registry.