NPPES file of Aug 9, 2026

Ruth T. Dubyel, D.O.

Obstetrics & Gynecology Physician · Oak Park, IL

Ruth T. Dubyel, D.O. is an obstetrics & gynecology physician with a practice address in Oak Park, Illinois, and NPI 1134408446, issued on Aug 4, 2011. Check the license (Illinois 125059336, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1134408446
Name
Ruth T. Dubyel
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
125059336 IL
Self-reported in NPPES; status is on the state search
Practice location
932 Lake St, Oak Park, IL 60301
Phone
(331) 221-1700
Enumerated
Aug 4, 2011
Record last updated
Apr 8, 2022
Fax
(331) 221-2729
Medicare enrollment
Enrolled (PECOS I20150729008388); accepts Medicare assignment
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 932 Lake St

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

  1. Eric Roberts, ARNPNurse Practitioner1669554465

Verify Ruth T. Dubyel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 125059336
    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 Illinois license search

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87% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

22 Medicare Part D claims for 13 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Ruth Dubyel22
  2. Specialty average165

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): 91.4 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 score82.7
  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).

Industry payments in 2024: $162.61

4 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ruth Dubyel$162.61
  2. Specialty average$1,030.61

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

Bills Medicare through one group practice

  1. Endeavor Health Medical GroupElmhurst, IL

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

Ruth T. Dubyel among 2,062 obstetrics & gynecology physician records in Illinois

Ruth T. Dubyel, D.O. is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 62% of them.

  • NPI issued2011 · 62% of these records are older, 35% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2011 · median 2006 among the 1,168 with a school on file
  • Record last updated2022 · 51% 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 Illinois 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 Illinois

There are 2,062 obstetrics & gynecology physician records in Illinois.

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

  1. Vasant Acharya, M.D.Oak Park, IL 603011124035944
  2. Elaine Biester, M.D.Oak Park, IL 603011841300464
  3. Lisa Chorzempa-Schainis, M.D.Oak Park, IL 603011629085444
  4. James Nitti, M.D.Oak Park, IL 603011194106872
  5. Kenneth Bray, MDOak Park, IL 603021740295161
  6. Monique Brotman, D.O.Oak Park, IL 603021447395108
  7. Devyani Chawla, MDOak Park, IL 603021861915969
  8. Bertha Lopez, MDOak Park, IL 603021578582979

Common questions

What is Ruth T. Dubyel, D.O.'s NPI number?

Ruth T. Dubyel, D.O.'s National Provider Identifier (NPI) is 1134408446, issued on Aug 4, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Ruth T. Dubyel, D.O. located?

The NPPES record lists a practice address at 932 Lake St, Oak Park, IL, 60301. Phone: (331) 221-1700. Providers update this record themselves, so call before visiting.

How can I verify Ruth T. Dubyel, D.O.'s license?

NPPES lists Illinois license number 125059336, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ruth T. Dubyel, D.O. prescribe under Medicare Part D?

In 2024, Ruth T. Dubyel, D.O. had 22 Medicare Part D claims for 13 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Ruth T. Dubyel, D.O.'s MIPS final score?

The 2023 MIPS final score is 91.4 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.