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DR. KAREN RAE KASTING M.D.
NPI 1427255033
Internal Medicine - Hospice and Palliative Medicine in Seattle, WA

Active since June 27, 2007PECOS EnrolledAccepts Medicare Assignment
201 16TH AVE E, SEATTLE, WA 98112(206) 326-3077(877) 515-2975 Get Directions Write a Review

NPPES record last updated: August 18, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Aug 18, 2026, Nov 18, 2025, Aug 22, 2023 and 3 more (6 updates tracked since 2019).

About Dr. Karen Rae Kasting M.d. NPPES

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

DR. KAREN RAE KASTING M.D. (NPI 1427255033) is an individual hospice and palliative medicine provider in Seattle, Washington, licensed in Washington (MD70014854) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Loma Linda University School Of Medicine (2007).

NPPES Registry Identity

NPI1427255033
Entity TypeIndividualFemale
Primary Taxonomy207RH0002X
Provider Legal NameDR. KAREN RAE KASTINGCredential: M.D.
Location Address201 16TH AVE ESeattle, WA 98112-5226
Mailing Address201 16th Ave ESeattle, WA 98112-5226 · (206) 326-3077 · Fax (206) 381-4022
Phone(206) 326-3077
Fax(877) 515-2975
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 2007
Enumeration DateJune 27, 2007
Last NPPES UpdateAugust 18, 20266 updates tracked since enumeration
NPPES CertifiedAugust 18, 2026
✔ NPI 1427255033 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RH0002X
Licenses✔ Licensed in WA · MD70014854✔ Licensed in CA · A106556
Definition
An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.
Also ListedSurgeryTaxonomy 208600000X · License MD70014854 (WA), A106556 (CA)
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License MD70014854 (WA), 01081530A (IN)
Also ListedSurgery · Trauma SurgeryTaxonomy 2086S0127X · License 01081530A (IN)
201 16TH AVE E, Seattle, WA 98112
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Other Names 1

Former Name (1)Karen R O'bosky M.d.

Secondary Practice Locations 3

Location 16600 Bruceville RdSacramento, CA 95823-4671 · Phone (916) 862-3642 · Fax (916) 688-6855
Location 24150 V St Ste 3400Sacramento, CA 95817-1460 · Phone (916) 734-4681 · Fax (916) 734-7924
Location 37900 W Jefferson Blvd Ste 306Fort Wayne, IN 46804-4128 · Phone (260) 458-3610 · Fax (260) 458-3611

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

Dr. Karen Rae Kasting 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.

PECOS PAC ID3577705672
PECOS Enrollment IDI20251202003726
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

3

Medicare enrollment records show Karen Kasting reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kaiser Foundation Health Plan Of Washington
1.2 mi
Multi-Specialty
320 WESTLAKE AVE. N., SUITE 100
Seattle, WA 98109
  • Reassigned Medicare billing, Washington enrollment
  • 2,678 clinicians in this Medicare group
NPI 1396810701 (206) 448-6561
Permanente Medical Group Inc
655 mi
Internal Medicine
975 SERENO DRIVE
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1336222397 (707) 651-1000
Faculty Physicians And Surgeons Of Llusm
871 mi
Transplant Surgery
2020 WELLNESS WAY, STE 506
Las Vegas, NV 89106
  • Reassigned Medicare billing, California enrollment
  • 2,584 clinicians in this Medicare group
NPI 1124560214 (909) 558-3636

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

DR. MICHAEL DONG CHO M.D.
Internal Medicine (Rheumatology)
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-3000
MRS. MELAINE MENDOZA ROMAN OTRP, OTR/L
Occupational Therapist
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-4545
NHI LUAN TAN
Student in an Organized Health Care Education/Training Program
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-3000
GROUP HEALTH COOPERATIVE
Clinic/Center (Ambulatory Surgical)
201 16TH AVE E, SUITE CMB-2
SEATTLE, WA 98112
King County (206) 326-2107
JOYCE KRISTINE AQUINO
Registered Nurse (Home Health)
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-4545
KIMBERLY DAWN GRASSMAN
Home Health Aide
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 635-1668
GARRETT KOBAYASHI PHARMD
Pharmacist
201 16TH AVE E
SEATTLE, WA 98112
King County (206) 326-2880
TAYLAR GALLUP OTR/L
Occupational Therapist
201 16TH AVE E
SEATTLE, WA 98112
King County (877) 751-2446

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 Karen Kasting's NPI number?

The NPI number for Karen Kasting is 1427255033. It was assigned to this individual provider in the NPPES registry on June 27, 2007. The provider is also known as Karen R O'bosky M.D..

Where is Karen Kasting located?

Karen Kasting practices at 201 16th Ave E, Seattle, WA 98112. The listed phone number is (206) 326-3077.

What is Karen Kasting's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.

Is Karen Kasting enrolled in Medicare?

Yes. Karen Kasting 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 Karen Kasting's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Kasting reassigns Medicare benefits to 3 organizations: Kaiser Foundation Health Plan Of Washington (Seattle, WA), Permanente Medical Group Inc (Vallejo, CA) and Faculty Physicians And Surgeons Of Llusm (Las Vegas, NV). 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 Karen Kasting'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 Karen Kasting was last updated on August 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.