Jeffrey John Quackenbush, MD
Radiation Oncology Physician · Valparaiso, IN
Jeffrey John Quackenbush, MD is a radiation oncology physician with a practice address in Valparaiso, Indiana, and NPI 1639151921, issued on Nov 14, 2005. Check the license (Indiana 01055750A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Jeffrey John Quackenbush
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 01055750A IN
Self-reported in NPPES; status is on the state search - Practice location
- 54 Roosevelt RD, Valparaiso, IN 46383
- Phone
- (219) 462-8246
- Enumerated
- Nov 14, 2005
- Record last updated
- Jul 22, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (219) 462-7902
- Medicaid ID
- 200371010A IN
- Medicare enrollment
- Enrolled (PECOS I20040109000370); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1996
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 135 in Indiana → Look up another NPI →
Also registered at 54 Roosevelt RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kamala Modur, MDRadiation Oncology Physician1689656985
Verify Jeffrey John Quackenbush in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01055750ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average radiation oncology physician in 2024
190 Medicare Part D claims for 71 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Tamsulosin Hcl81 claims
- Alfuzosin Hcl Er28 claims
- Lidocaine Hcl Viscous11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Jeffrey John Quackenbush among 135 radiation oncology physician records in Indiana
Jeffrey John Quackenbush, MD is one of 135 radiation oncology physician records with a practice address in Indiana. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 74% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1996 · median 2002 among the 103 with a school on file
- Record last updated2010 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Indiana
There are 135 radiation oncology physician records in Indiana.
All 135 in Indiana → Every provider in Valparaiso → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Kamala Modur, MDValparaiso, IN 463831689656985
- Joy Allen, MDMichigan City, IN 463601124034905
- Ram Narayan, M.D.Merrillville, IN 464101376954693
- Robert Woodburn, MDMerrillville, IN 464101407848849
- Maria Aguirre, M.D.Munster, IN 463211710205067
- Virag Dandekar, MDMunster, IN 463211861620403
- Cory Hogue, M.D.Munster, IN 463211720438286
- Robert Prock, MDMunster, IN 463211457359309
Common questions
What is Jeffrey John Quackenbush, MD's NPI number?
Jeffrey John Quackenbush, MD's National Provider Identifier (NPI) is 1639151921, issued on Nov 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey John Quackenbush, MD located?
The NPPES record lists a practice address at 54 Roosevelt RD, Valparaiso, IN, 46383. Phone: (219) 462-8246. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey John Quackenbush, MD's license?
NPPES lists Indiana license number 01055750A, 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 Jeffrey John Quackenbush, MD prescribe under Medicare Part D?
In 2024, Jeffrey John Quackenbush, MD had 190 Medicare Part D claims for 71 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Jeffrey John Quackenbush, MD's MIPS final score?
The 2023 MIPS final score is 77.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.