NPPES file of Aug 9, 2026

Madeline Bach

Obstetrics & Gynecology Physician · Portland, OR

Madeline Bach is an obstetrics & gynecology physician with a practice address in Portland, Oregon, and NPI 1427687409, issued on Apr 2, 2020. Check the license (Oregon DO221037, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427687409
Name
Madeline Bach
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
DO221037 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
Apr 2, 2020
Record last updated
Aug 5, 2024
Fax
(503) 494-1678
Medicare enrollment
Enrolled (PECOS I20250930000603); accepts Medicare assignment
Medical or professional school
Touro Un Col Of Osteopathic Medicine, Henderson, 2020
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 Madeline Bach in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license DO221037
    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

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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79% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

34 Medicare Part D claims for 20 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Madeline Bach34
  2. Specialty average165

Most prescribed

  1. Estradiol16 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.

Bills Medicare through one group practice

  1. Utmb Faculty Group PracticeGalveston, TX

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

Madeline Bach among 654 obstetrics & gynecology physician records in Oregon

Madeline Bach is one of 654 obstetrics & gynecology physician 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 95% of them.

  • NPI issued2020 · 95% of these records are older, 3% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2020 · median 2007 among the 413 with a school on file
  • Record last updated2024 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Oregon

There are 654 obstetrics & gynecology physician records in Oregon.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Richard Allen, MDPortland, OR 972391255349791
  2. Paula Bednarek, MDPortland, OR 972391336154848
  3. Michelle Berlin, MDPortland, OR 972391568478063
  4. Adrienne Bonham, MDPortland, OR 972391700963121
  5. John Buckmaster, MDPortland, OR 972391013922525
  6. Alison Edelman, MD, MPHPortland, OR 972391407861917
  7. Martha Goetsch, MD,MPHPortland, OR 972391649288101
  8. Jeanne-Marie Guise, MDPortland, OR 972391467559237

Common questions

What is Madeline Bach's NPI number?

Madeline Bach's National Provider Identifier (NPI) is 1427687409, issued on Apr 2, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Madeline Bach 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 Madeline Bach's license?

NPPES lists Oregon license number DO221037, 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 Madeline Bach prescribe under Medicare Part D?

In 2024, Madeline Bach had 34 Medicare Part D claims for 20 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.

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.