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DR. SHOBHA WILLIAMSON STACK M.D.
NPI 1982993770
Internal Medicine - Hospice and Palliative Medicine in Kirkland, WA

Active since April 01, 2011PECOS Enrolled
12040 NE 128TH ST, KIRKLAND, WA 98034(425) 542-3630 Get Directions Write a Review

NPPES record last updated: July 16, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 16, 2022, Nov 2, 2017 (2 updates tracked since 2017).

About Dr. Shobha Williamson Stack M.d. NPPES

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

DR. SHOBHA WILLIAMSON STACK M.D. (NPI 1982993770) is an individual hospice and palliative medicine provider in Kirkland, Washington, licensed in Washington (60503747) and active in the NPI registry since April 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1982993770
Entity TypeIndividualFemale
Primary Taxonomy207RH0002X
Provider Legal NameDR. SHOBHA WILLIAMSON STACKCredential: M.D.
Location Address12040 NE 128TH STKirkland, WA 98034-3013
Mailing Address12040 Ne 128th StKirkland, WA 98034-3013 · (425) 542-3630
Phone(425) 542-3630
Sole ProprietorNo
Enumeration DateApril 1, 2011
Last NPPES UpdateJuly 16, 20222 updates tracked since enumeration
NPPES CertifiedJuly 3, 2021
✔ NPI 1982993770 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RH0002X
License✔ Licensed in WA · 60503747
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 ListedInternal MedicineTaxonomy 207R00000X · License MD60503747 (WA)
12040 NE 128TH ST, Kirkland, WA 98034
Open in Google Maps ↗

Other Names 1

Former Name (1)Shobha Devi Williamson

Other Identifiers 2

Medicaid1982993770WA
Other8936088WA · Medicare Pin

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Shobha Williamson Stack 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 Reassignment

Medicare enrollment records show Shobha Stack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

King County Public Hospital District No. 2
Same address
Physical Therapist
12040 NE 128TH ST # MS -10
Kirkland, WA 98034
  • Reassigned Medicare billing, Washington enrollment
  • 1,074 clinicians in this Medicare group
NPI 1356920946 (206) 466-0369

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. SHILPA KORAH PHARMD
Pharmacist
12040 NE 128TH ST, TAN 415/ MS31
KIRKLAND, WA 98034
King County (425) 899-2783
DARLENE ELAINE GRINDE RN
Registered Nurse
12040 NE 128TH ST
KIRKLAND, WA 98034
King County (425) 218-6241
AUSTIN M GROSS M.D.
Emergency Medicine
12040 NE 128TH ST
KIRKLAND, WA 98034
King County (425) 899-1711
JUNE L. LEE MD
Anesthesiology
12040 NE 128TH ST
KIRKLAND, WA 98034
King County (425) 899-1000
ERIN-SIOBHAIN ROSS CURRIN M.D.
Internal Medicine (Hematology & Oncology)
12040 NE 128TH ST
KIRKLAND, WA 98034
King County (425) 899-3181
RACHANA GUDIPUDI
Anesthesiology
12040 NE 128TH ST
KIRKLAND, WA 98034
King County (425) 400-7908
FONG KIT TAM PHARMD
Pharmacist
12040 NE 128TH ST
KIRKLAND, WA 98034
King County (425) 899-2761
KING COUNTY PUBLIC HOSPITAL DISTRICT NO. 2
General Acute Care Hospital
12040 NE 128TH ST
KIRKLAND, WA 98034
King County (425) 899-1000

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 Shobha Stack's NPI number?

The NPI number for Shobha Stack is 1982993770. It was assigned to this individual provider in the NPPES registry on April 1, 2011. The provider is also known as Shobha Devi Williamson.

Where is Shobha Stack located?

Shobha Stack practices at 12040 NE 128th St, Kirkland, WA 98034. The listed phone number is (425) 542-3630.

What is Shobha Stack's specialty?

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

Is Shobha Stack enrolled in Medicare?

Yes. Shobha Stack is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Shobha Stack's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shobha Stack reassigns Medicare benefits to King County Public Hospital District No. 2 (Kirkland, WA). The 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 Shobha Stack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Shobha Stack accept?

Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Shobha Stack 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 Shobha Stack was last updated on July 16, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.