NPPES file of Aug 9, 2026

John Michael Rinker, M.D.

Internal Medicine Physician · Pontiac, IL

John Michael Rinker, M.D. is an internal medicine physician with a practice address in Pontiac, Illinois, and NPI 1316173636, issued on Jun 1, 2009. Check the license (Illinois 036-130930, 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
1316173636
Name
John Michael Rinker
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
036-130930 IL
11014853A IN
Self-reported in NPPES; status is on the state search
Practice location
2500 W Reynolds St, Pontiac, IL 61764
Phone
(815) 844-5115
Enumerated
Jun 1, 2009
Record last updated
Nov 28, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(815) 842-2152
Medicare enrollment
Enrolled (PECOS I20120921000436); accepts Medicare assignment
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 2500 W Reynolds St

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

  1. Nabila AshrafHospice and Palliative Medicine (Internal Medicine) Physician1730676099
  2. Catherine BachtoldNurse Practitioner1376926832
  3. Erin BakerPhysical Therapist1154868685
  4. Haiven Baker, OTD; OTR/LOccupational Therapist1285500777
  5. Adair BartosikPhysical Therapist1982140497
  6. Brittany Bursott, APNFamily Nurse Practitioner1699325514

Verify John Michael Rinker 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 036-130930
    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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4.3 times the Medicare Part D claims of the average internal medicine physician in 2024

13,810 Medicare Part D claims for 982 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 224 claims were for opioids.

  1. John Rinker13,810
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium774 claims
  2. Levothyroxine Sodium661 claims
  3. Metoprolol Succinate406 claims
  4. Lisinopril376 claims
  5. Amlodipine Besylate369 claims
  6. Furosemide360 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.

One hospital affiliation

  1. Saint James HospitalPontiac, IL · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

John Michael Rinker among 7,238 internal medicine physician records in Illinois

John Michael Rinker, M.D. 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 2009, is newer than 49% of them.

  • NPI issued2009 · 49% of these records are older, 49% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2009 · median 2003 among the 3,580 with a school on file
  • Record last updated2012 · 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).

4 internal medicine physician records list a practice address in Pontiac

They are 4 of the 266 NPPES records with a practice address in Pontiac, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Marissa Batayola, M.D.Pontiac, IL 617641487643730
  2. Jayme Kwak, M.D.Pontiac, IL 617641750776233
  3. James Mikeworth, M.D.Pontiac, IL 617641790927309
  4. Kerline Ductan, M.D.Normal, IL 617611073826715
  5. Marlito Favila, M.D.Normal, IL 617611114945912
  6. Sam Gaines, M.D.Normal, IL 617611730115643
  7. Caroline Halperin, D.O.Normal, IL 617611912928805
  8. Dru Hauter, M.D.Normal, IL 617611255353660

Common questions

What is John Michael Rinker, M.D.'s NPI number?

John Michael Rinker, M.D.'s National Provider Identifier (NPI) is 1316173636, issued on Jun 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is John Michael Rinker, M.D. located?

The NPPES record lists a practice address at 2500 W Reynolds St, Pontiac, IL, 61764. Phone: (815) 844-5115. Providers update this record themselves, so call before visiting.

How can I verify John Michael Rinker, M.D.'s license?

NPPES lists Illinois license number 036-130930, 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 John Michael Rinker, M.D. prescribe under Medicare Part D?

In 2024, John Michael Rinker, M.D. had 13,810 Medicare Part D claims for 982 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.