JOCELYN KO M.D.
NPI 1831478528
Internal Medicine in Seattle, WA
About Jocelyn Ko M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOCELYN KO M.D. (NPI 1831478528) is an individual internal medicine provider in Seattle, Washington, licensed in California (A141259) and active in the NPI registry since August 2011. She is enrolled in Medicare PECOS, maintains a secondary practice location in Saint Helena, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
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
Jocelyn Ko 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
15Medicare enrollment records show Jocelyn Ko reassigns Medicare billing to 15 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98101
- Reassigned Medicare billing, Washington enrollment
- 15 clinicians in this Medicare group
Seattle, WA 98101
- Reassigned Medicare billing, Washington enrollment
- 7 clinicians in this Medicare group
Seattle, WA 98101
- Reassigned Medicare billing, Washington enrollment
- 1,021 clinicians in this Medicare group
Everett, WA 98203
- Reassigned Medicare billing, Washington enrollment
- 166 clinicians in this Medicare group
Tacoma, WA 98402
- Reassigned Medicare billing, Washington enrollment
- 120 clinicians in this Medicare group
Sacramento, CA 95811
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
Denver, CO 80205
- Reassigned Medicare billing, Colorado and Virginia enrollments
- 151 clinicians in this Medicare group
Phoenix, AZ 85034
- Reassigned Medicare billing, Arizona enrollment
- 92 clinicians in this Medicare group
Tempe, AZ 85283
- Reassigned Medicare billing, Arizona enrollment
- 42 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 98101 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
SEATTLE, WA 98101
SEATTLE, WA 98101
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 Jocelyn Ko's NPI number?
The NPI number for Jocelyn Ko is 1831478528. It was assigned to this individual provider in the NPPES registry on August 11, 2011.
Where is Jocelyn Ko located?
Jocelyn Ko practices at 1334 Terry Ave, Seattle, WA 98101. The listed phone number is (206) 682-2661.
What is Jocelyn Ko's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jocelyn Ko enrolled in Medicare?
Yes. Jocelyn 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 Jocelyn Ko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jocelyn Ko reassigns Medicare benefits to 15 organizations: Seattle Internist Group PLLC (Seattle, WA), Specialty Medical Services (Seattle, WA), Virginia Mason Medical Center (Seattle, WA), Altea Medical Washington PLLC (Everett, WA), Dispatchhealth Washington PC (Tacoma, WA) and 10 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 Jocelyn Ko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jocelyn Ko accept?
Health plans from Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc., Premera Blue Cross Blue Shield of Alaska and WellPoint list Jocelyn Ko as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Jocelyn Ko was last updated on March 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Jocelyn Ko, M.D. · NPI 1831478528
Internal Medicine physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since August 11, 2011.
## Identity
- **NPI:** 1831478528 (Entity type: Individual)
- **Enumerated:** August 11, 2011
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A141259 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1334 TERRY AVE, Seattle, WA 98101
- **Phone:** (206) 682-2661
## 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:** 15 organizations under Medicare reassignment (form CMS-855R): Seattle Internist Group PLLC (NPI 1407545569, Seattle, WA); Specialty Medical Services (NPI 1932467933, Seattle, WA); Virginia Mason Medical Center (NPI 1780748657, Seattle, WA); Altea Medical Washington PLLC (NPI 1609655497, Everett, WA); Dispatchhealth Washington PC (NPI 1013490507, Tacoma, WA); and 10 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** March 27, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1831478528) · Data from the CMS NPPES public registry.