NPPES file of Aug 9, 2026

Ian Christopher Fields

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician · Portland, OR

Ian Christopher Fields is a urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician with a practice address in Portland, Oregon, and NPI 1518209840, issued on Mar 25, 2013. Check the license (Oregon MD181770, as entered in NPPES) on the Oregon 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
1518209840
Name
Ian Christopher Fields
Primary taxonomy
Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician 207VF0040X
License number
MD181770 OR
Self-reported in NPPES; status is on the state search
Practice location
3181 SW Sam Jackson Park RD, Portland, OR 97239
Phone
(503) 418-4500
Enumerated
Mar 25, 2013
Record last updated
Mar 16, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(503) 418-4500
Medicare enrollment
Enrolled (PECOS I20170622001935); accepts Medicare assignment
Medical or professional school
Loyola University Of Chicago, Stritch School Of Medicine, 2013
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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Also registered at 3181 SW Sam Jackson Park RD

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

  1. Alex AamodtCritical Care Medicine Registered Nurse1154257590
  2. Jefferson Abaricia, MD, PHDStudent in an Organized Health Care Education/Training Program1073215711
  3. Kenneth Abbey, MDAnesthesiology Physician1588779342
  4. Matthew Abbott, PA-CMedical Physician Assistant1154738003
  5. Ayah Abdelsalam Megahed, MD, MSCVascular & Interventional Radiology Physician1023503596
  6. Obada Abdulrazzak, MDStudent in an Organized Health Care Education/Training Program1598567430

Verify Ian Christopher Fields in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD181770
    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 Oregon license search

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76% fewer Medicare Part D claims than the average urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician in 2024

179 Medicare Part D claims for 82 beneficiaries, against an average of 732 among the 998 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.

  1. Ian Fields179
  2. Specialty average732

Most prescribed

  1. Estradiol51 claims
  2. Myrbetriq43 claims
  3. Nitrofurantoin Mono-Macro19 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): 97.8 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 score81.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Bills Medicare through one group practice

  1. University Professional ServicesPortland, OR

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

Ian Christopher Fields among 18 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records in Oregon

Ian Christopher Fields is one of 18 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records with a practice address in Oregon. 94% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 94% of them.

  • NPI issued2013 · 94% of these records are older, 0% newer
  • In a Medicare fileYes · 94% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2013 · median 2004 among the 12 with a school on file
  • Record last updated2021 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VF0040X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician providers in Oregon

There are 18 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records in Oregon.

The 8 urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician records with the nearest ZIP codes

  1. Sara CichowskiPortland, OR 972391912199134
  2. Sharon Edwards, MDPortland, OR 972391447267372
  3. William Gregory, MDPortland, OR 972391972510808
  4. Sarah Boyles, MDPortland, OR 972251881615102
  5. Mary Denman, MDPortland, OR 972251346255833
  6. Susan Hobson, MDPortland, OR 972251871546242
  7. Lesley Otto, MDPortland, OR 972251699729608
  8. Bhumy Heliker, MDPortland, OR 972131770865305

Common questions

What is Ian Christopher Fields's NPI number?

Ian Christopher Fields's National Provider Identifier (NPI) is 1518209840, issued on Mar 25, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Ian Christopher Fields located?

The NPPES record lists a practice address at 3181 SW Sam Jackson Park RD, Portland, OR, 97239. Phone: (503) 418-4500. Providers update this record themselves, so call before visiting.

How can I verify Ian Christopher Fields's license?

NPPES lists Oregon license number MD181770, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ian Christopher Fields prescribe under Medicare Part D?

In 2024, Ian Christopher Fields had 179 Medicare Part D claims for 82 beneficiaries; the average among urogynecology and reconstructive pelvic surgery (obstetrics & gynecology) physician prescribers was 732. Part D covers Medicare prescriptions only.

What is Ian Christopher Fields's MIPS final score?

The 2023 MIPS final score is 97.8 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.