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KATMAI ONCOLOGY GROUP, LLC
NPI 1821030206
Internal Medicine - Medical Oncology in Anchorage, AK

Active since June 12, 2006
3851 PIPER STREET, #U340, ANCHORAGE, AK 99508(907) 562-0321(907) 562-2683 Get Directions Write a Review

NPPES record last updated: December 24, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 24, 2025, Feb 12, 2021, Jan 14, 2021 (3 updates tracked since 2021).

About Katmai Oncology Group, Llc NPPES

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

KATMAI ONCOLOGY GROUP, LLC (NPI 1821030206) is a healthcare organization registered as a medical oncology in Anchorage, Alaska and active in the NPI registry since June 2006. The organization lists Shannon Smiley, Partner, as its authorized official.

NPPES Registry Identity

NPI1821030206
Entity TypeOrganization
Primary Taxonomy207RX0202X
Legal Business NameKATMAI ONCOLOGY GROUP, LLC
Location Address3851 PIPER STREET, #U340Anchorage, AK 99508-4627
Mailing AddressPo Box 74900Chicago, IL 60675-4900 · (602) 441-9520 · Fax (907) 562-2683
Phone(907) 562-0321
Fax(907) 562-2683
Organization SubpartNo
Authorized OfficialShannon SmileyPartner · (907) 562-0321
Enumeration DateJune 12, 2006
Last NPPES UpdateDecember 24, 20253 updates tracked since enumeration
NPPES CertifiedDecember 24, 2025
✔ NPI 1821030206 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
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.
Also ListedSpecialistTaxonomy 174400000X
3851 PIPER STREET, Anchorage, AK 99508
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Other Identifiers 1

Medicaid1020811AK

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., Ambetter from Absolute Total Care, Ambetter from Arizona Complete Health and more.Insurance ›

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DARYL M. MCCLENDON M.D., P.C.
Internal Medicine (Gastroenterology)
3851 PIPER STREET, SUITE U466
ANCHORAGE, AK 99508
Anchorage Municipality (907) 569-1333
DR. RONALD JOHN BOISEN M.D., P.C.
Internal Medicine (Gastroenterology)
3851 PIPER STREET, SUITE U466
ANCHORAGE, AK 99508
Anchorage Municipality (907) 569-1333
SHANNON SMILEY M.D.
Internal Medicine (Hematology & Oncology)
3851 PIPER STREET, U340
ANCHORAGE, AK 99508
Anchorage Municipality (907) 562-0321
ANCHORAGE ASSOCIATES IN RADIATION MEDICINE, LL
Radiology (Radiation Oncology)
3851 PIPER STREET, TOWER U SUITE LL002
ANCHORAGE, AK 99508
Anchorage Municipality (907) 212-3186

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 Katmai Oncology Group, LLC's NPI number?

The NPI number for Katmai Oncology Group, LLC is 1821030206. It was assigned to this organization in the NPPES registry on June 12, 2006.

Where is Katmai Oncology Group, LLC located?

Katmai Oncology Group, LLC is located at 3851 Piper Street #u340, Anchorage, AK 99508. The listed phone number is (907) 562-0321.

What is Katmai Oncology Group, LLC's specialty?

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

What insurance does Katmai Oncology Group, LLC accept?

Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter Health of Delaware, Ambetter from Absolute Total Care and Ambetter from Arizona Complete Health and 34 other insurers list Katmai Oncology Group, LLC 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 Katmai Oncology Group, LLC was last updated on December 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.