NPPES file of Aug 9, 2026

Christina Marie O'Guinn, FNP

Family Nurse Practitioner · Portland, OR

Christina Marie O'Guinn, FNP is a family nurse practitioner with a practice address in Portland, Oregon, and NPI 1265048151, issued on Sep 16, 2020. Check the license (Oregon 10022327, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265048151
Name
Christina Marie O'Guinn
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
10022327 OR
95015358 CA
Self-reported in NPPES; status is on the state search
Practice location
4400 NE Halsey St Ste 102, Portland, OR 97213
Phone
(503) 962-1000
Enumerated
Sep 16, 2020
Record last updated
Dec 2, 2025
Medicare enrollment
Enrolled (PECOS I20240610002709); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 4400 NE Halsey St Ste 102

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

  1. Jason Bensch, M.D.Cardiovascular Disease Physician1164765111
  2. Sarah Bereznai, NPAdult Health Nurse Practitioner1679086938
  3. Kristin Bourret, PACPhysician Assistant1073555306
  4. Lisa Enger, ANPAdult Health Nurse Practitioner1295983617
  5. Cindy Fulton, PA-CPhysician Assistant1003217910
  6. Benjamin Hartwig, AGACNPAcute Care Nurse Practitioner1578008397

Verify Christina Marie O'Guinn 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 10022327    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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60% fewer Medicare Part D claims than the average family nurse practitioner in 2024

523 Medicare Part D claims for 217 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 20 claims were for opioids.

  1. Christina O'Guinn523
  2. Specialty average1,305

Most prescribed

  1. Metoprolol Succinate40 claims
  2. Atorvastatin Calcium32 claims
  3. Furosemide26 claims
  4. Entresto22 claims
  5. Amoxicillin-Clavulanate Potass21 claims
  6. Spironolactone20 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.

Industry payments in 2024: $180.14

4 payments; by number, the most common kind was food and beverage; the largest payer was Alnylam Pharmaceuticals Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christina O'Guinn$180.14
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Providence Health And Services OregonPortland, OR
  2. Salem HealthSalem, OR

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

Christina Marie O'Guinn among 2,384 family nurse practitioner records in Oregon

Christina Marie O'Guinn, FNP 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 2020, is newer than 73% of them.

  • NPI issued2020 · 73% of these records are older, 22% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2020 · 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).

591 family nurse practitioner records list a practice address in Portland

They are 591 of the 42,088 NPPES records with a practice address in Portland, and 2,384 family nurse practitioner records in Oregon.

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

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Liana Corliss, N.P.Portland, OR 972131952376451
  2. Lyn Dobrunick, FNPPortland, OR 972131013909142
  3. Melissa Federspiel, FNPPortland, OR 972131881676641
  4. Dennis Grey, F.N.P.Portland, OR 972131851303291
  5. Roxanne Griswold, FNPPortland, OR 972131205828936
  6. Caryl Kenworth, M.S.N., F.N.P.Portland, OR 972131396757662
  7. Melissa Kilian, FNPPortland, OR 972131821054024
  8. Daniel Leone, NP-CPortland, OR 972131962559112

Common questions

What is Christina Marie O'Guinn, FNP's NPI number?

Christina Marie O'Guinn, FNP's National Provider Identifier (NPI) is 1265048151, issued on Sep 16, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Christina Marie O'Guinn, FNP located?

The NPPES record lists a practice address at 4400 NE Halsey St Ste 102, Portland, OR, 97213. Phone: (503) 962-1000. Providers update this record themselves, so call before visiting.

How can I verify Christina Marie O'Guinn, FNP's license?

NPPES lists Oregon license number 10022327, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Christina Marie O'Guinn, FNP prescribe under Medicare Part D?

In 2024, Christina Marie O'Guinn, FNP had 523 Medicare Part D claims for 217 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions 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.