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KATHLEEN J YOST M.D.
NPI 1780685149
Internal Medicine - Medical Oncology in Grand Rapids, MI

Active since August 09, 2005PECOS Enrolled
145 MICHIGAN ST NE, SUITE 3100, GRAND RAPIDS, MI 49503(616) 954-9800(616) 954-2116 Get Directions Write a Review

NPPES record last updated: March 13, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 13, 2020, Apr 25, 2018 (2 updates tracked since 2018).

About Kathleen J Yost M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHLEEN J YOST M.D. (NPI 1780685149) is an individual medical oncology provider in Grand Rapids, Michigan, licensed in Michigan (4301403848) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1780685149
Entity TypeIndividualFemale
Primary Taxonomy207RX0202X
Provider Legal NameKATHLEEN J YOSTCredential: M.D.
Location Address145 MICHIGAN ST NE, SUITE 3100Grand Rapids, MI 49503-2562
Mailing Address5800 Foremost Dr Se Ste 300Grand Rapids, MI 49546-7062 · (616) 954-9800
Phone(616) 954-9800
Fax(616) 954-2116
Sole ProprietorNo
Enumeration DateAugust 9, 2005
Last NPPES UpdateMarch 13, 20202 updates tracked since enumeration
NPPES CertifiedMarch 13, 2020
✔ NPI 1780685149 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in MI · 4301403848
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
145 MICHIGAN ST NE, Grand Rapids, MI 49503
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kathleen J Yost M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Kathleen Yost reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Spectrum Health United
24 mi
Rural Health
1202 W OAK ST
Greenville, MI 48838
  • Reassigned Medicare billing, Michigan enrollment
  • 242 clinicians in this Medicare group
NPI 1538436852 (616) 754-2944
Newaygo County General Hospital Association
26 mi
Rural Health
230 S MAPLE ST
Grant, MI 49327
  • Reassigned Medicare billing, Michigan enrollment
  • 180 clinicians in this Medicare group
NPI 1013040492 (231) 834-5995
Reed City Hospital Corporation
63 mi
Critical Access
225 N STATE ST
Reed City, MI 49677
  • Reassigned Medicare billing, Michigan enrollment
  • 132 clinicians in this Medicare group
NPI 1538239892 (231) 832-7105
Memorial Medical Center Of West Michigan
78 mi
Psychiatric Unit
1 N ATKINSON DR
Ludington, MI 49431
  • Reassigned Medicare billing, Michigan enrollment
  • 168 clinicians in this Medicare group
NPI 1356510259 (231) 843-2591

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 49503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$166.68 typical visit price
range $54.34 – $166.68
Typical copayment $41.67 (range $13.58 – $41.67)
Most-billed visit code 99205
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

JAMES D THOMPSON MD
Otolaryngology
145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (616) 267-7758
STEPHANIE F WILLIAMS MD
Internal Medicine (Medical Oncology)
145 MICHIGAN ST NE, SUITE 5200
GRAND RAPIDS, MI 49503
Kent County (616) 486-5933
KELLY ANN CONLEY NP
Nurse Practitioner (Women's Health)
145 MICHIGAN ST NE, SUITE 6300
GRAND RAPIDS, MI 49503
Kent County (616) 486-6000
DR. ROSS SCHULTHEISS PHARM.D.
Pharmacist
145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (616) 977-4840
AMELIA ROSE MROCH MS
Genetic Counselor, MS
145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (616) 486-6218
KRISTIN DIANE BROWN CNS
Registered Nurse (Oncology)
145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (616) 486-5700
DR. GORDON OLIVER DOWNEY M.D.
Obstetrics & Gynecology (Gynecologic Oncology)
145 MICHIGAN ST NE, SUITE 6300
GRAND RAPIDS, MI 49503
Kent County (616) 486-6000
KIMBERLY ANN TEXLEY-QUIGG N.P.
Nurse Practitioner (Women's Health)
145 MICHIGAN ST NE
GRAND RAPIDS, MI 49503
Kent County (616) 486-6333

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 Kathleen Yost's NPI number?

The NPI number for Kathleen Yost is 1780685149. It was assigned to this individual provider in the NPPES registry on August 9, 2005.

Where is Kathleen Yost located?

Kathleen Yost practices at 145 Michigan St NE Suite 3100, Grand Rapids, MI 49503. The listed phone number is (616) 954-9800.

What is Kathleen Yost's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Kathleen Yost enrolled in Medicare?

Yes. Kathleen Yost is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kathleen Yost's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Yost reassigns Medicare benefits to 4 organizations: Spectrum Health United (Greenville, MI), Newaygo County General Hospital Association (Grant, MI), Reed City Hospital Corporation (Reed City, MI) and Memorial Medical Center Of West Michigan (Ludington, 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 Kathleen Yost's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kathleen Yost 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 2 other insurers list Kathleen Yost 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 Kathleen Yost was last updated on March 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.