KOTOMI OBAYASHI DO
NPI 1609491513
Pain Medicine - Interventional Pain Medicine in Green Bay, WI
About Kotomi Obayashi Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KOTOMI OBAYASHI DO (NPI 1609491513) is an individual interventional pain medicine provider in Green Bay, Wisconsin, licensed in Wisconsin (81476) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, is affiliated with Corewell Health Big Rapids Hospital, and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
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
Kotomi Obayashi Do 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
2Medicare enrollment records show Kotomi Obayashi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Green Bay, WI 54311
- Reassigned Medicare billing, Wisconsin enrollment
- 275 clinicians in this Medicare group
Big Rapids, MI 49307
- Reassigned Medicare billing, Michigan enrollment
- 34 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Corewell Health Big Rapids Hospital
Acute Care Hospitals · Big Rapids, MICorewell Health Reed City Hospital
Critical Access Hospitals · Reed City, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54311 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.
GREEN BAY, WI 54311
GREEN BAY, WI 54311
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 Kotomi Obayashi's NPI number?
The NPI number for Kotomi Obayashi is 1609491513. It was assigned to this individual provider in the NPPES registry on June 16, 2020.
Where is Kotomi Obayashi located?
Kotomi Obayashi practices at 2845 Greenbrier Rd, Green Bay, WI 54311. The listed phone number is (920) 288-8377.
What is Kotomi Obayashi's specialty?
The primary specialty registered for this NPI is Pain Medicine, specializing in Interventional Pain Medicine, with taxonomy code 208VP0014X.
Is Kotomi Obayashi enrolled in Medicare?
Yes. Kotomi Obayashi 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 Kotomi Obayashi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kotomi Obayashi reassigns Medicare benefits to 2 organizations: Baycare Clinic LLP (Green Bay, WI) and Michigan Primary Care Partners P C (Big Rapids, MI). 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 Kotomi Obayashi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kotomi Obayashi accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 3 other insurers list Kotomi Obayashi 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.
Is Kotomi Obayashi affiliated with any hospitals?
According to CMS data, Kotomi Obayashi is affiliated with Corewell Health Big Rapids Hospital and Corewell Health Reed City Hospital.
When was this NPI record last updated?
The NPPES record for Kotomi Obayashi was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.
# Kotomi Obayashi, DO · NPI 1609491513
Interventional Pain Medicine physician in Green Bay, Wisconsin. Individual provider, active in the CMS NPPES registry since June 16, 2020.
## Identity
- **NPI:** 1609491513 (Entity type: Individual)
- **Enumerated:** June 16, 2020
- **Primary specialty:** Pain Medicine - Interventional Pain Medicine · taxonomy 208VP0014X
- **State license:** 81476 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2845 GREENBRIER RD, Green Bay, WI 54311-6519
- **Phone:** (920) 288-8377 · **Fax:** (920) 288-8385
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Baycare Clinic LLP (NPI 1588609648, Green Bay, WI); Michigan Primary Care Partners P C (NPI 1366497380, Big Rapids, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** October 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1609491513) · Data from the CMS NPPES public registry.