NPPES file of Aug 9, 2026

Jaclyn Keller

Internal Medicine Physician · Geneva, IL

Jaclyn Keller is an internal medicine physician with a practice address in Geneva, Illinois, and NPI 1982066494, issued on Mar 23, 2016. Check the license (Illinois 036149646, 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
1982066494
Name
Jaclyn Keller
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036149646 IL
Self-reported in NPPES; status is on the state search
Practice location
300 Randall RD, Geneva, IL 60134
Phone
(630) 933-4700
Enumerated
Mar 23, 2016
Record last updated
Apr 9, 2025
Fax
(630) 933-4427
Medicare enrollment
Enrolled (PECOS I20190701001824); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 2016
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 300 Randall RD

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

  1. Donald Adeli, M.D.Obstetrics & Gynecology Physician1114928397
  2. Fatma Ahmed, M.D.Diagnostic Radiology Physician1285990564
  3. Abigail Alexander, APRN, CRNACertified Registered Nurse Anesthetist1629744255
  4. Theresia Anderson, CRNACertified Registered Nurse Anesthetist1821006057
  5. Christopher Arbir, CRNACertified Registered Nurse Anesthetist1508920315
  6. Amy ArrocenaPhysical Therapist1043962830

Verify Jaclyn Keller 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 036149646
    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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97% fewer Medicare Part D claims than the average internal medicine physician in 2024

89 Medicare Part D claims for 49 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Jaclyn Keller89
  2. Specialty average3,176

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.

Bills Medicare through 3 group practices

  1. Carle Health Care IncorporatedPeoria, IL
  2. Methodist Medical Center OF IllinoisPeoria, IL
  3. Proctor Health SystemsPeoria, IL

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

Jaclyn Keller among 7,238 internal medicine physician records in Illinois

Jaclyn Keller is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 63% of them.

  • NPI issued2016 · 63% of these records are older, 36% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2016 · median 2003 among the 3,580 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Internal Medicine Physician providers in Illinois

There are 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Algimantas Kerpe, M.D.Geneva, IL 601341235122581
  2. Mark Lewis, MDGeneva, IL 601341811007925
  3. Nirali Patel, DOGeneva, IL 601341720115041
  4. Puja PatelGeneva, IL 601341356979256
  5. Anand Thakkar, M.D.Hanover Park, IL 601331336190040
  6. Gina Abraham, MDFranklin Park, IL 601311275600223
  7. Walter Briney, M.D.Glen Ellyn, IL 601371659365955
  8. Luis Couret, M.D.Franklin Park, IL 601311134218399

Common questions

What is Jaclyn Keller's NPI number?

Jaclyn Keller's National Provider Identifier (NPI) is 1982066494, issued on Mar 23, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Jaclyn Keller located?

The NPPES record lists a practice address at 300 Randall RD, Geneva, IL, 60134. Phone: (630) 933-4700. Providers update this record themselves, so call before visiting.

How can I verify Jaclyn Keller's license?

NPPES lists Illinois license number 036149646, 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 Jaclyn Keller prescribe under Medicare Part D?

In 2024, Jaclyn Keller had 89 Medicare Part D claims for 49 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.