NPPES file of Aug 9, 2026

Sonya Guarino, FNP-C, MS

Family Nurse Practitioner · Klamath Falls, OR

Sonya Guarino, FNP-C, MS is a family nurse practitioner with a practice address in Klamath Falls, Oregon, and NPI 1619788577, issued on Jan 18, 2025. Check the license (Oregon 10027975, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619788577
Name
Sonya Guarino
Credential
FNP-C, MS
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
10027975 OR
Self-reported in NPPES; status is on the state search
Practice location
2821 Daggett Ave Ste 200, Klamath Falls, OR 97601
Phone
(541) 274-8400
Enumerated
Jan 18, 2025
Record last updated
Jan 18, 2025
Medicare enrollment
Enrolled (PECOS I20250310000294); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 2,384 in Oregon → Look up another NPI →

Also registered at 2821 Daggett Ave Ste 200

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

  1. Alison Berardino, NP-CFamily Nurse Practitioner1801268636
  2. Hanah BerhaneAdult Health Nurse Practitioner1235782970
  3. Jerri Britsch, M.D,Family Medicine Physician1124161104
  4. Darcy Butcher, FNPCFamily Nurse Practitioner1083614630
  5. Stewart DeckerFamily Medicine Physician1417375015
  6. Lorena Espinoza, FNPFamily Nurse Practitioner1801685953

Verify Sonya Guarino in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 10027975    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
Find the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Sky Lakes Medical Center IncKlamath Falls, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sonya Guarino among 2,384 family nurse practitioner records in Oregon

Sonya Guarino, FNP-C, MS is one of 2,384 family nurse practitioner records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 95% of them.

  • NPI issued2025 · 95% of these records are older, 1% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2025 · median 2017 among the 1,390 with a school on file
  • Record last updated2025 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

56 family nurse practitioner records list a practice address in Klamath Falls

They are 56 of the 1,946 NPPES records with a practice address in Klamath Falls, and 2,384 family nurse practitioner records in Oregon.

All 2,384 in Oregon → Every provider in Klamath Falls → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Scott Alexander, FNPKlamath Falls, OR 976011831439454
  2. Darcy Butcher, FNPCKlamath Falls, OR 976011083614630
  3. Elena Herrera, FNPKlamath Falls, OR 976011780805556
  4. Laina Holland, FNPKlamath Falls, OR 976011174639157
  5. Amy Holweger, FNPKlamath Falls, OR 976011902870835
  6. Alexandra Larsen, F.N.P.Klamath Falls, OR 976011366782716
  7. Katherine Murphey, FNPKlamath Falls, OR 976011407987811
  8. Judith Olson, FNPKlamath Falls, OR 976011437186897

Common questions

What is Sonya Guarino, FNP-C, MS's NPI number?

Sonya Guarino, FNP-C, MS's National Provider Identifier (NPI) is 1619788577, issued on Jan 18, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Sonya Guarino, FNP-C, MS located?

The NPPES record lists a practice address at 2821 Daggett Ave Ste 200, Klamath Falls, OR, 97601. Phone: (541) 274-8400. Providers update this record themselves, so call before visiting.

How can I verify Sonya Guarino, FNP-C, MS's license?

NPPES lists Oregon license number 10027975, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.