NPPES file of Aug 9, 2026

Robb V. Rydzynski, D.O.

Obstetrics & Gynecology Physician · Dixon, IL

Robb V. Rydzynski, D.O. is an obstetrics & gynecology physician with a practice address in Dixon, Illinois, and NPI 1720016306, issued on Jun 30, 2006. Check the license (Illinois 036-116183, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1720016306
Name
Robb V. Rydzynski
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
036-116183 IL
Self-reported in NPPES; status is on the state search
Practice location
215 E. 1St Street, Dixon, IL 61021
Phone
(815) 288-7711
Enumerated
Jun 30, 2006
Record last updated
Aug 22, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(815) 285-8930
Medicaid ID
036116183 IL
Medicare enrollment
Enrolled (PECOS I20060803000423); accepts Medicare assignment
Medical or professional school
Lake Erie College Of Osteopathic Medicine, Erie, 2002
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 215 E. 1St Street

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

  1. Melanie Cain, PTAPhysical Therapy Assistant1437376001

Verify Robb V. Rydzynski 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 036-116183
    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

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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2.1 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024

341 Medicare Part D claims for 82 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 38 claims were for opioids.

  1. Robb Rydzynski341
  2. Specialty average165

Most prescribed

  1. Solifenacin Succinate42 claims
  2. Levofloxacin35 claims
  3. Myrbetriq31 claims
  4. Hydrocodone-Acetaminophen25 claims
  5. Nitrofurantoin Mono-Macro24 claims
  6. Valacyclovir20 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: $366.18

19 payments; by number, the most common kind was food and beverage; the largest payer was Axonics, Inc. 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. Robb Rydzynski$366.18
  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. Morrison Community Hospital DistrictMorrison, IL

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

Robb V. Rydzynski among 2,062 obstetrics & gynecology physician records in Illinois

Robb V. Rydzynski, 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 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2002 · median 2006 among the 1,168 with a school on file
  • Record last updated2018 · 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).

6 obstetrics & gynecology physician records list a practice address in Dixon

They are 6 of the 693 NPPES records with a practice address in Dixon, and 2,062 obstetrics & gynecology physician records in Illinois.

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

  1. Anna Bida-Dudun, M.D.Dixon, IL 610211669444782
  2. Lakshmi Dundoo, M.D.Dixon, IL 610211871553263
  3. William Long, D.O.Dixon, IL 610211568430460
  4. Brett McGowan, M.D.Dixon, IL 610211023434347
  5. Shirley Stone, M.D.Dixon, IL 610211578531018
  6. Robert Eichmann, M.D.Cherry Valley, IL 610161073875597
  7. Farouk Isawi, MDFreeport, IL 610321174583611
  8. Courtney Pyant-Dan-Pullo, MDFreeport, IL 610321023379831

Common questions

What is Robb V. Rydzynski, D.O.'s NPI number?

Robb V. Rydzynski, D.O.'s National Provider Identifier (NPI) is 1720016306, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robb V. Rydzynski, D.O. located?

The NPPES record lists a practice address at 215 E. 1St Street, Dixon, IL, 61021. Phone: (815) 288-7711. Providers update this record themselves, so call before visiting.

How can I verify Robb V. Rydzynski, D.O.'s license?

NPPES lists Illinois license number 036-116183, 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 Robb V. Rydzynski, D.O. prescribe under Medicare Part D?

In 2024, Robb V. Rydzynski, D.O. had 341 Medicare Part D claims for 82 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.