Guillermo Eduardo Espinoza, M.D.
Internal Medicine Physician · Sitka, AK
Guillermo Eduardo Espinoza, M.D. is an internal medicine physician with a practice address in Sitka, Alaska, and NPI 1194081042, issued on Apr 4, 2012. Check the license (Alaska 102592, as entered in NPPES) on the Alaska State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Guillermo Eduardo Espinoza
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 102592 AK
Self-reported in NPPES; status is on the state search - Practice location
- 222 Tongass Dr, Sitka, AK 99835
- Phone
- (907) 966-2411
- Enumerated
- Apr 4, 2012
- Record last updated
- Jun 24, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150826000595); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 222 Tongass Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marcia Aceveda, CHAPCommunity Health Worker1699052480
- April Anderson, PT, D.P.T.Physical Therapist1467729822
- Christy AndersonCase Manager/Care Coordinator1073402517
- Tiffany Andres, MS, RDRegistered Dietitian1437136041
- Christina Anglin, RNRegistered Nurse1760673024
- Lisa Antonio, MDFamily Medicine Physician1679951438
Verify Guillermo Eduardo Espinoza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlaska State Medical Board
Search for license 102592Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
142 Medicare Part D claims for 35 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Topiramate23 claims
- Carvedilol11 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 practice group's MIPS final score for 2023 (Medicare payment program): 87.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
2 hospitals and group practices
- Southeast Alaska Regional Health ConsortiumSitka, AK · Critical Access Hospitals3 of 5 stars
- Alaska Native Tribal Health ConsortiumAnchorage, AK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Internal Medicine Physician providers in Alaska
There are 177 internal medicine physician records in Alaska.
Other internal medicine physician records in Alaska
- Paul 'Worrell, MDAnchorage, AK1275565525
- Kava Afu, MDJber, AK1760076822
- Ashley Barasa, MDElmendorf Afb, AK1144854977
- Youssef Barbour, MDAnchorage, AK1588846042
- David Barnes, D.O.Wasilla, AK1124081211
- David Barrett, MDAnchorage, AK1053350249
- Luke Bechler, MDJber, AK1437877586
- Natalie Beyeler, D.O.Palmer, AK1104885268
- Roy Boone, MDKenai, AK1124126297
- Peter Bosch, MDAnchorage, AK1154767150
Common questions
What is Guillermo Eduardo Espinoza, M.D.'s NPI number?
Guillermo Eduardo Espinoza, M.D.'s National Provider Identifier (NPI) is 1194081042, issued on Apr 4, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo Eduardo Espinoza, M.D. located?
The NPPES record lists a practice address at 222 Tongass Dr, Sitka, AK, 99835. Phone: (907) 966-2411. Providers update this record themselves, so call before visiting.
How can I verify Guillermo Eduardo Espinoza, M.D.'s license?
NPPES lists Alaska license number 102592, 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 Guillermo Eduardo Espinoza, M.D. prescribe under Medicare Part D?
In 2024, Guillermo Eduardo Espinoza, M.D. had 142 Medicare Part D claims for 35 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Guillermo Eduardo Espinoza, M.D.'s MIPS final score?
The 2023 MIPS final score is 87.1 of 100, reported for the practice group. 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.