NPPES file of Aug 9, 2026

Ryan Maxwell, DO

Anesthesiology Physician · Rockford, IL

Ryan Maxwell, DO is an anesthesiology physician with a practice address in Rockford, Illinois, and NPI 1659511202, issued on Feb 23, 2009. Check the license (Illinois 036.144123, 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
1659511202
Name
Ryan Maxwell
Credential
DO
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
036.144123 IL
288918 NY
OS015922 PA
Self-reported in NPPES; status is on the state search
Practice location
2400 N Rockton Ave, Rockford, IL 61103
Phone
(815) 971-5000
Enumerated
Feb 23, 2009
Record last updated
Jul 21, 2022
Medicaid IDs
036144123 IL
102723767 PA
0308137 NJ
1659511202 WI
Medicare enrollment
Enrolled (PECOS I20171009002612); accepts Medicare assignment
Medical or professional school
Philadelphia College Of Osteopathic Medicine, 2008
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 2400 N Rockton Ave

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

  1. Waleed Abbasi, M.D.Pediatrics Physician1487941969
  2. Mohammed Ilyas Ahmed Khan, M.D.,Hospice and Palliative Medicine (Internal Medicine) Physician1417198011
  3. Moamen Al Zoubi, MDInfectious Disease Physician1770902587
  4. Brian Aldred, MDEmergency Medicine Physician1609986884
  5. Gary Anderson, MDAnesthesiology Physician1336100940
  6. John Aregood III, MDHospitalist Physician1427168608

Verify Ryan Maxwell 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 036.144123
    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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Industry payments in 2024: $112.60

2 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ryan Maxwell$112.60
  2. Specialty average$669.59

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. Rockford Health PhysiciansRockford, IL

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

Ryan Maxwell among 2,575 anesthesiology physician records in Illinois

Ryan Maxwell, DO is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 53% of them.

  • NPI issued2009 · 53% of these records are older, 44% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2008 · median 2006 among the 1,608 with a school on file
  • Record last updated2022 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

44 anesthesiology physician records list a practice address in Rockford

They are 44 of the 3,893 NPPES records with a practice address in Rockford, and 2,575 anesthesiology physician records in Illinois.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Gary Anderson, MDRockford, IL 611031336100940
  2. Stephen Cotton, MDRockford, IL 611031891756888
  3. Gareth Eberle, MDRockford, IL 611031982664462
  4. Edward Fausel, MDRockford, IL 611031790745289
  5. James Gephart, M.D.Rockford, IL 611031780697201
  6. Patricia Harley, MDRockford, IL 611031386604809
  7. John Keith, MDRockford, IL 611031538129069
  8. Timothy Koritz, MDRockford, IL 611031396855581

Common questions

What is Ryan Maxwell, DO's NPI number?

Ryan Maxwell, DO's National Provider Identifier (NPI) is 1659511202, issued on Feb 23, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Ryan Maxwell, DO located?

The NPPES record lists a practice address at 2400 N Rockton Ave, Rockford, IL, 61103. Phone: (815) 971-5000. Providers update this record themselves, so call before visiting.

How can I verify Ryan Maxwell, DO's license?

NPPES lists Illinois license number 036.144123, 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.

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.