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Family Practice

Frank A. Greathouse Iii, DO

Works at hospitals in Palmer, AK · Alaska

Summary

Dr. Frank A. Greathouse Iii, DO is a family doctor at 1301 E Palmer Wasilla Hwy, Suite 400, Wasilla, AK 99654. Phone: (907) 357-9400. Accepts Medicare assignment. In 2024, Frank A. Greathouse Iii had 255 Original Medicare patients and 3,776 services. NPI 1780699330. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 1301 E Palmer Wasilla Hwy, Suite 400, Wasilla, AK 99654 · Directions
  • Phone: (907) 357‑9400
  • Medicare: Accepts Medicare assignment
  • Hospital: Mat-Su Regional Medical Center
  • Group practice: Northwoods Family Medicine Inc
  • Medical school: Des Moines University Of Osteopathic Medicine And Health Sciences · graduated 1999 (27 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Frank A. Greathouse Iii, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Frank A. Greathouse Iii accept Medicare assignment?
Yes. Medicare's clinician data says Frank A. Greathouse Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Frank A. Greathouse Iii see?
In 2024, CMS data shows 255 Original Medicare patients and 3,776 services for Frank A. Greathouse Iii. This counts Original Medicare only and measures volume, not quality.
What is Frank A. Greathouse Iii's NPI number?
1780699330. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Frank A. Greathouse Iii, 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.

Original Medicare patients255
Services billed to Medicare3,776
Different services or procedures42
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Test for allergy using allergenic extract (95004)720 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)615 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)414 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)245 services
  5. Insertion of needle into vein for collection of blood sample (36415)227 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 pressure70%
  • High cholesterol55%
  • Arthritis42%
  • Diabetes29%
  • Ischemic heart disease25%
  • Anxiety17%

Hospitals where Frank A. Greathouse Iii works

Medicare's Facility Affiliation Data lists Frank A. Greathouse Iii 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.

  • Mat-Su Regional Medical CenterPalmer, AK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 020006

Practice locations

Addresses where Frank A. Greathouse Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Frank A. Greathouse Iii as a member of this group (CMS data updated October 2, 2026).

  • Northwoods Family Medicine Inc3 clinicians in the group

Specialties

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.

All family doctors in Wasilla →

Other clinicians in Northwoods Family Medicine Inc

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

Clinician information

CredentialDO
Medical schoolDes Moines University Of Osteopathic Medicine And Health Sciences
Graduation year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1780699330
CorrectionsReport an error or suggest an update →

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