John Frederick, M.D.
Hospitalist Physician · Dyer, IN
John Frederick, M.D. is a hospitalist physician with a practice address in Dyer, Indiana, and NPI 1598027153, issued on Jun 11, 2012. Check the license (Indiana 01076100A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- John Frederick
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 01076100A IN
036138817 IL
Self-reported in NPPES; status is on the state search - Practice location
- 24 Joliet St, Dyer, IN 46311
- Phone
- (219) 865-2141
- Enumerated
- Jun 11, 2012
- Record last updated
- Mar 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 201338270 IN
- Medicare enrollment
- Enrolled (PECOS I20210914001735); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 453 in Indiana → Look up another NPI →
Also registered at 24 Joliet St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nathan Aardsma, D.O.Anatomic Pathology & Clinical Pathology Physician1649579939
- Ahmad Alsibai, M.D.Hospitalist Physician1265741235
- Amanda Arredondo, DNPCertified Registered Nurse Anesthetist1992484984
- Patricia Bailey-JohnsonClinical Social Worker1346647583
- George Bechir, M.D.Hospitalist Physician1649685306
- Umar Bhatti, DOHospitalist Physician1558802751
Verify John Frederick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01076100ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average hospitalist physician in 2024
504 Medicare Part D claims for 191 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 36 claims were for opioids.
Most prescribed
- Pantoprazole Sodium47 claims
- Amlodipine Besylate32 claims
- Prednisone30 claims
- Amoxicillin-Clavulanate Potass25 claims
- Cefdinir22 claims
- Azithromycin20 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: $150.96
5 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 7,324 providers of this specialty with any payment received $494.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Florida Hospital Healthcare Partners, IncTavares, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Frederick among 453 hospitalist physician records in Indiana
John Frederick, M.D. is one of 453 hospitalist physician records with a practice address in Indiana. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 52% of them.
- NPI issued2012 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated2005 · median 2008 among the 379 with a school on file
- Record last updated2021 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 hospitalist physician records list a practice address in Dyer
They are 22 of the 457 NPPES records with a practice address in Dyer, and 453 hospitalist physician records in Indiana.
All 453 in Indiana → Every provider in Dyer → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Ahmad Alsibai, M.D.Dyer, IN 463111265741235
- George Bechir, M.D.Dyer, IN 463111649685306
- Satara Brown, MDDyer, IN 463111104237379
- Sean Chrystal, DODyer, IN 463111598968406
- Fernando De Lemos Figueira, MDDyer, IN 463111992253298
- Purshotham Ginne, MDDyer, IN 463111255584397
- Chao Gong, M.D.Dyer, IN 463111073836706
- Eric Jung, M.D.Dyer, IN 463111922413335
Common questions
What is John Frederick, M.D.'s NPI number?
John Frederick, M.D.'s National Provider Identifier (NPI) is 1598027153, issued on Jun 11, 2012. An NPI identifies a provider in billing; it is not a license.
Where is John Frederick, M.D. located?
The NPPES record lists a practice address at 24 Joliet St, Dyer, IN, 46311. Phone: (219) 865-2141. Providers update this record themselves, so call before visiting.
How can I verify John Frederick, M.D.'s license?
NPPES lists Indiana license number 01076100A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Frederick, M.D. prescribe under Medicare Part D?
In 2024, John Frederick, M.D. had 504 Medicare Part D claims for 191 beneficiaries; the average among hospitalist physician prescribers was 521. 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.