Margaret H. Grinnell, MD

Medicare activity in 2024

Official CMS public-use data for Margaret H. Grinnell, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)121 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)103 services
3. Telephone medical discussion with physician, 5-10 minutes (99441)38 services
4. Telephone medical discussion with physician, 11-20 minutes (99442)17 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure68%
• High cholesterol43%
• Diabetes36%
• Arthritis34%
• Anxiety26%
• Chronic kidney disease24%

Hospitals where Margaret H. Grinnell works

Medicare's Facility Affiliation Data lists Margaret H. Grinnell at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Alaska Native Medical CenterAnchorage, AK · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 020026

Practice locations

Addresses where Margaret H. Grinnell is enrolled with Medicare (CMS data updated October 2, 2026).

• 1001 S Knik Goose Bay RdWasilla, AK 99654
• 2516 Mountain Circle, Pedro Bay ClinicPedro Bay, AK 99647 (907) 850‑2229
• 4315 Diplomacy DrAnchorage, AK 99508 (907) 563‑2662
• 4320 Diplomacy DrAnchorage, AK 99508 (907) 265‑4955
• 69 Main St, Nondalton ClinicNondalton, AK 99640 (907) 729‑6799

Group practices

Medicare enrollment lists Margaret H. Grinnell as a member of these groups (CMS data updated October 2, 2026).

• Alaska Native Tribal Health Consortium607 clinicians in the group
• Southcentral Foundation167 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Alaska →

Other family doctors in Wasilla

Clinicians with the same Medicare primary specialty in Wasilla, AK — not a recommendation.

• Wade S. Erickson, MD
• Lisa L. Harrison, MD
• Sarah J. Hennemann, MD
• Louis M. Packer, MD
• Jacob C. Shook, DO
• Paul D. Forman, MD
• Patricia G. Johnson, DO
• Jessica M. Lazar, MD

All family doctors in Wasilla →

Other clinicians in Alaska Native Tribal Health Consortium

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Hannah Kruse Young, MD
• Stephani Killian, CNA
• Daniel W. Suver, MD
• Andrew A. Baber, PA
• Eline I. Cove, DO
• Steven J. Denson, DC

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians