KER YONG J KOH M.D.
NPI 1083775787
Anesthesiology in Modesto, CA
About Ker Yong J Koh M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KER YONG J KOH M.D. (NPI 1083775787) is an individual anesthesiology provider in Modesto, California, licensed in California (C140941) and active in the NPI registry since December 2006. He 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
Ker Yong J Koh M.d. 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 Reassignments
3Medicare enrollment records show Ker Yong Koh reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Modesto, CA 95355
- Reassigned Medicare billing, California enrollment
- 3,056 clinicians in this Medicare group
Modesto, CA 95350
- Reassigned Medicare billing, California enrollment
- 488 clinicians in this Medicare group
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.
Areas of Expertise CMS Part B claims 2
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.
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.
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 Ker Yong Koh's NPI number?
The NPI number for Ker Yong Koh is 1083775787. It was assigned to this individual provider in the NPPES registry on December 13, 2006.
Where is Ker Yong Koh located?
Ker Yong Koh practices at 600 Coffee Rd, Modesto, CA 95355. The listed phone number is (209) 569-7408.
What is Ker Yong Koh's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Ker Yong Koh enrolled in Medicare?
Yes. Ker Yong Koh 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 organizations bill Medicare for Ker Yong Koh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ker Yong Koh reassigns Medicare benefits to 3 organizations: Sutter Valley Medical Foundation (Modesto, CA), First Choice Physician Partners (Modesto, CA) and Permanente Medical Group Inc (Stockton, 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 Ker Yong Koh'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 Ker Yong Koh was last updated on October 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Ker Yong J Koh, M.D. · NPI 1083775787
Anesthesiology physician in Modesto, California. Individual provider, active in the CMS NPPES registry since December 13, 2006.
## Identity
- **NPI:** 1083775787 (Entity type: Individual)
- **Enumerated:** December 13, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** C140941 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 COFFEE RD, Modesto, CA 95355-4201
- **Phone:** (209) 569-7408
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Sutter Valley Medical Foundation (NPI 1669846986, Modesto, CA); First Choice Physician Partners (NPI 1912264862, Modesto, CA); Permanente Medical Group Inc (NPI 1548343510, Stockton, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** October 8, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1083775787) · Data from the CMS NPPES public registry.