John Michael Chappo, D.O.
Internal Medicine Physician · Zionsville, IN
John Michael Chappo, D.O. is an internal medicine physician with a practice address in Zionsville, Indiana, and NPI 1730347022, issued on May 23, 2008. Check the license (Indiana 02003401A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- John Michael Chappo
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 02003401A IN
Self-reported in NPPES; status is on the state search - Practice location
- 9485 Hunt Club RD, Zionsville, IN 46077
- Phone
- (317) 246-0896
- Enumerated
- May 23, 2008
- Record last updated
- Mar 5, 2024
- Fax
- (888) 313-5560
- Medicaid ID
- 200932120 IN
- Medicare enrollment
- Enrolled (PECOS I20090210000227); accepts Medicare assignment
- Medical or professional school
- Kansas City University Of Physicians And Surgeons, 2007
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,109 in Indiana → Look up another NPI →
Verify John Michael Chappo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 02003401ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
191 Medicare Part D claims for 80 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Tamsulosin Hcl13 claims
- Atorvastatin Calcium11 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.
Bills Medicare through one group practice
- Witham Memorial HospitalLebanon, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Michael Chappo among 2,109 internal medicine physician records in Indiana
John Michael Chappo, D.O. is one of 2,109 internal medicine physician records with a practice address in Indiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2007 · median 2005 among the 1,448 with a school on file
- Record last updated2024 · 43% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 internal medicine physician records list a practice address in Zionsville
They are 5 of the 543 NPPES records with a practice address in Zionsville, and 2,109 internal medicine physician records in Indiana.
All 2,109 in Indiana → Every provider in Zionsville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jean Corcoran, MDZionsville, IN 460771306188370
- Paul Hamori, MDZionsville, IN 460771265408801
- Harold Hibbs, MD, MSCZionsville, IN 460771346405909
- Joseph Overhage, M.D., PH.D.Zionsville, IN 460771720085186
- Kenechukwu Nwafo, MDCarmel, IN 460741932309440
- Sonal Ravichandran, M.D.Westfield, IN 460741023157773
- Ronald Harmening, MDPendleton, IN 460641871517169
- Diana De Jesus, M.D.Noblesville, IN 460621336446392
Common questions
What is John Michael Chappo, D.O.'s NPI number?
John Michael Chappo, D.O.'s National Provider Identifier (NPI) is 1730347022, issued on May 23, 2008. An NPI identifies a provider in billing; it is not a license.
Where is John Michael Chappo, D.O. located?
The NPPES record lists a practice address at 9485 Hunt Club RD, Zionsville, IN, 46077. Phone: (317) 246-0896. Providers update this record themselves, so call before visiting.
How can I verify John Michael Chappo, D.O.'s license?
NPPES lists Indiana license number 02003401A, 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 Michael Chappo, D.O. prescribe under Medicare Part D?
In 2024, John Michael Chappo, D.O. had 191 Medicare Part D claims for 80 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.