NPPES file of Aug 9, 2026

Allison Kate Retzer, MD

Diagnostic Radiology Physician · Springfield, IL

Allison Kate Retzer, MD is a diagnostic radiology physician with a practice address in Springfield, Illinois, and NPI 1154738961, issued on Jul 14, 2014. Check the license (Illinois 125.065665, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154738961
Name
Allison Kate Retzer
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
125.065665 IL
Self-reported in NPPES; status is on the state search
Practice location
701 N 1St Box 101, Springfield, IL 62781
Phone
(217) 757-2387
Enumerated
Jul 14, 2014
Record last updated
Jul 14, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(217) 788-5582
Medicare enrollment
Enrolled (PECOS I20200904000304); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2014
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 701 N 1St Box 101

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

  1. Alex Hall, M.D.Diagnostic Radiology Physician1063863744

Verify Allison Kate Retzer 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 125.065665
    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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Bills Medicare through 4 group practices

  1. Radiology Associates OF Tallahassee PATallahassee, FL
  2. Southeast Radiology Partners LtdTallahassee, FL
  3. Tallahassee Diag Imaging Ctr LtdTallahassee, FL
  4. Tallahassee Memorial Healthcare IncTallahassee, FL

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

Allison Kate Retzer among 1,874 diagnostic radiology physician records in Illinois

Allison Kate Retzer, MD is one of 1,874 diagnostic radiology 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 2014, is newer than 74% of them.

  • NPI issued2014 · 74% of these records are older, 24% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2014 · median 2004 among the 1,201 with a school on file
  • Record last updated2014 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

129 diagnostic radiology physician records list a practice address in Springfield

They are 129 of the 4,997 NPPES records with a practice address in Springfield, and 1,874 diagnostic radiology physician records in Illinois.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Darrel Anderson, MDSpringfield, IL 627811760423032
  2. Marisa Blitstein, M.D.Springfield, IL 627811194914465
  3. Jeffrey Cullen, MDSpringfield, IL 627811861463101
  4. Gaspar Fernandez, MDSpringfield, IL 627811750322319
  5. Alex Hall, M.D.Springfield, IL 627811063863744
  6. Eric Justin, MDSpringfield, IL 627811982651378
  7. Raymond Lee, MDSpringfield, IL 627811093756256
  8. Jose Rodriguez, MDSpringfield, IL 627811538102017

Common questions

What is Allison Kate Retzer, MD's NPI number?

Allison Kate Retzer, MD's National Provider Identifier (NPI) is 1154738961, issued on Jul 14, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Allison Kate Retzer, MD located?

The NPPES record lists a practice address at 701 N 1St Box 101, Springfield, IL, 62781. Phone: (217) 757-2387. Providers update this record themselves, so call before visiting.

How can I verify Allison Kate Retzer, MD's license?

NPPES lists Illinois license number 125.065665, 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.