NPPES file of Aug 9, 2026

Alison J. Gerringer, NP

Family Nurse Practitioner · Springfield, IL

Alison J. Gerringer, NP is a family nurse practitioner with a practice address in Springfield, Illinois, and NPI 1396229522, issued on Sep 24, 2018. Check the license (Illinois 209018101, as entered in NPPES) with the Illinois board that licenses this profession; 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
1396229522
Name
Alison J. Gerringer
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209018101 IL
Self-reported in NPPES; status is on the state search
Practice location
350 W Carpenter St, Springfield, IL 62702
Phone
(217) 528-7541
Enumerated
Sep 24, 2018
Record last updated
Jan 17, 2025
Fax
(217) 525-1404
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 350 W Carpenter St

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

  1. Bhavani Adusumilli, MDNephrology Physician1568792604
  2. Edwilyn Colwell, APRNFamily Nurse Practitioner1538642533
  3. Terra Curtis, NPFamily Nurse Practitioner1215434550
  4. Merry Downer, M.D.Nephrology Physician1518054121
  5. Nicholas Fenwick, APRNFamily Nurse Practitioner1154082808
  6. Kristen Ferguson, M.D.Emergency Medicine Physician1750308227

Verify Alison J. Gerringer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209018101
    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
Find the Illinois license search

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57% fewer Medicare Part D claims than the average family nurse practitioner in 2024

560 Medicare Part D claims for 225 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.

  1. Alison Gerringer560
  2. Specialty average1,305

Most prescribed

  1. Lantus Solostar42 claims
  2. Jardiance38 claims
  3. Metformin Hcl38 claims
  4. Trulicity38 claims
  5. Metformin Hcl Er37 claims
  6. Glipizide33 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: $49.01

2 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alison Gerringer$49.01
  2. Specialty average$650.95

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

Alison J. Gerringer among 7,639 family nurse practitioner records in Illinois

Alison J. Gerringer, NP is one of 7,639 family nurse practitioner records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 44% of them.

  • NPI issued2018 · 44% of these records are older, 49% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2025 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

309 family nurse practitioner records list a practice address in Springfield

They are 309 of the 4,997 NPPES records with a practice address in Springfield, and 7,639 family nurse practitioner records in Illinois.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Theresa Boley, CFNPSpringfield, IL 627021184605743
  2. Lorrie Cuartas, WHNP, FNP-BCSpringfield, IL 627021649271073
  3. Mary Ditman, C.F.N.P.Springfield, IL 627021114920139
  4. Airn Etherton, FNP-BCSpringfield, IL 627021114115920
  5. Pamela Kelley, C.N.P.Springfield, IL 627021588852107
  6. Denise Mears, FNP-BC, PNP-BCSpringfield, IL 627021326136870
  7. Christopher Mogren, CFNPSpringfield, IL 627021417147927
  8. Linda Read, FNP-BCSpringfield, IL 627021326242629

Common questions

What is Alison J. Gerringer, NP's NPI number?

Alison J. Gerringer, NP's National Provider Identifier (NPI) is 1396229522, issued on Sep 24, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Alison J. Gerringer, NP located?

The NPPES record lists a practice address at 350 W Carpenter St, Springfield, IL, 62702. Phone: (217) 528-7541. Providers update this record themselves, so call before visiting.

How can I verify Alison J. Gerringer, NP's license?

NPPES lists Illinois license number 209018101, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Alison J. Gerringer, NP prescribe under Medicare Part D?

In 2024, Alison J. Gerringer, NP had 560 Medicare Part D claims for 225 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.