NPPES file of Aug 9, 2026

Loetta Mae Horswill-Woods, DO

Internal Medicine Physician · Wasilla, AK

Loetta Mae Horswill-Woods, DO is an internal medicine physician with a practice address in Wasilla, Alaska, and NPI 1164479374, issued on May 31, 2006. Check the license (Alaska 4740, as entered in NPPES) on the Alaska State Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164479374
Name
Loetta Mae Horswill-Woods
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4740 AK
Self-reported in NPPES; status is on the state search
Practice location
3719 E Meridian Loop, Wasilla, AK 99654
Phone
(907) 373-5940
Enumerated
May 31, 2006
Record last updated
Oct 18, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(907) 373-5947
Medicaid ID
MD5445 AK
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3719 E Meridian Loop

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Heather Erickson, O.D.Optometrist1669511200
  2. Karen Impson, DOPediatrics Physician1427167113

Verify Loetta Mae Horswill-Woods in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersAlaska State Medical Board
    Search for license 4740
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Alaska license search

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75% fewer Medicare Part D claims than the average internal medicine physician in 2024

802 Medicare Part D claims for 96 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Loetta Horswill-Woods802
  2. Specialty average3,176

Most prescribed

  1. Omeprazole57 claims
  2. Lisinopril45 claims
  3. Atorvastatin Calcium37 claims
  4. Levothyroxine Sodium36 claims
  5. Losartan Potassium32 claims
  6. Amlodipine Besylate31 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 92 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score91.3
  2. Costout of 100 · 30%73.5
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Internal Medicine Physician providers in Alaska

There are 177 internal medicine physician records in Alaska.

Other internal medicine physician records in Alaska

  1. Paul 'Worrell, MDAnchorage, AK1275565525
  2. Kava Afu, MDJber, AK1760076822
  3. Ashley Barasa, MDElmendorf Afb, AK1144854977
  4. Youssef Barbour, MDAnchorage, AK1588846042
  5. David Barnes, D.O.Wasilla, AK1124081211
  6. David Barrett, MDAnchorage, AK1053350249
  7. Luke Bechler, MDJber, AK1437877586
  8. Natalie Beyeler, D.O.Palmer, AK1104885268
  9. Roy Boone, MDKenai, AK1124126297
  10. Peter Bosch, MDAnchorage, AK1154767150

Common questions

What is Loetta Mae Horswill-Woods, DO's NPI number?

Loetta Mae Horswill-Woods, DO's National Provider Identifier (NPI) is 1164479374, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Loetta Mae Horswill-Woods, DO located?

The NPPES record lists a practice address at 3719 E Meridian Loop, Wasilla, AK, 99654. Phone: (907) 373-5940. Providers update this record themselves, so call before visiting.

How can I verify Loetta Mae Horswill-Woods, DO's license?

NPPES lists Alaska license number 4740, as entered by the provider. Search the Alaska State Medical Board at https://www.commerce.alaska.gov/web/cbpl/ProfessionalLicensing/StateMedicalBoard.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Loetta Mae Horswill-Woods, DO prescribe under Medicare Part D?

In 2024, Loetta Mae Horswill-Woods, DO had 802 Medicare Part D claims for 96 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Loetta Mae Horswill-Woods, DO's MIPS final score?

The 2023 MIPS final score is 92 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.