IRIS PARK KO MD
NPI 1891997011
Anesthesiology in Watsonville, CA
About Iris Park Ko Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IRIS PARK KO MD (NPI 1891997011) is an individual anesthesiology provider in Watsonville, California, licensed in New York (258895) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Iris Park Ko 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 Reassignments
9Medicare enrollment records show Iris Ko reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Jose, CA 95124
- Reassigned Medicare billing, California enrollment
- 833 clinicians in this Medicare group
Palmdale, CA 93551
- Reassigned Medicare billing, California enrollment
- 22 clinicians in this Medicare group
Encino, CA 91316
- Reassigned Medicare billing, California enrollment
- 19 clinicians in this Medicare group
Van Nuys, CA 91405
- Reassigned Medicare billing, California enrollment
- 48 clinicians in this Medicare group
Burbank, CA 91505
- Reassigned Medicare billing, California enrollment
- 98 clinicians in this Medicare group
Orange, CA 92869
- Reassigned Medicare billing, California enrollment
- 168 clinicians in this Medicare group
Lafayette, IN 47904
- Reassigned Medicare billing, Indiana enrollment
- 671 clinicians in this Medicare group
Buffalo, NY 14214
- Reassigned Medicare billing, New York enrollment
- 117 clinicians in this Medicare group
Watertown, NY 13601
- Reassigned Medicare billing, New York enrollment
- 84 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.
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.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WATSONVILLE, CA 95076
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 Iris Ko's NPI number?
The NPI number for Iris Ko is 1891997011. It was assigned to this individual provider in the NPPES registry on June 1, 2007.
Where is Iris Ko located?
Iris Ko practices at 75 Neilson St, Watsonville, CA 95076. The listed phone number is (831) 724-4741.
What is Iris Ko's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Iris Ko enrolled in Medicare?
Yes. Iris Ko 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 Iris Ko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Iris Ko reassigns Medicare benefits to 9 organizations: Cep America - Anesthesia PC (San Jose, CA), Palmdale Anesthesia, Inc (Palmdale, CA), Century Anesthesia Medical Group (Encino, CA), Vp Anesthesia Partners, Inc (Van Nuys, CA), Buena Vista Anesthesia Medical Group (Burbank, CA) and 4 more organizations, listed in the Medicare section above. 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 Iris Ko'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 Iris Ko was last updated on January 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Iris Park Ko, MD · NPI 1891997011
Anesthesiology physician in Watsonville, California. Individual provider, active in the CMS NPPES registry since June 1, 2007.
## Identity
- **NPI:** 1891997011 (Entity type: Individual)
- **Enumerated:** June 1, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 258895 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 75 NEILSON ST, Watsonville, CA 95076
- **Phone:** (831) 724-4741 · **Fax:** (831) 763-6069
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Cep America - Anesthesia PC (NPI 1689192833, San Jose, CA); Palmdale Anesthesia, Inc (NPI 1205698115, Palmdale, CA); Century Anesthesia Medical Group (NPI 1376067629, Encino, CA); Vp Anesthesia Partners, Inc (NPI 1518694173, Van Nuys, CA); Buena Vista Anesthesia Medical Group (NPI 1366462293, Burbank, CA); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** January 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1891997011) · Data from the CMS NPPES public registry.