Dr. John Michael Chappo, DO
- Medicare services, 2024
- 227
- Medicare patients, 2024
- 128
- Part D claims, 2024
- 191
- Hospital affiliations
- 1
- Industry payments
- $897
- Practice address
- 1014 Mill Pond Lane, Greencastle, IN 46135
- Practice phone
- Call (765) 653-4397
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mill Pond Health Campus
Skilled Nursing Facility · Greencastle, Indiana
Find Dr. Chappo's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Michael Chappo is an internist in Greencastle, Indiana
Dr. Chappo practices at Mill Pond Health Campus in Greencastle, Indiana.
Dr. Chappo's NPI, 1730347022, was assigned on May 23, 2008. Dr. Chappo graduated from Kansas City University of Physicians and Surgeons in 2007. Dr. Chappo holds Indiana license 02003401A.
- NPI
- 1730347022NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527123447
- NPI enumeration date
- May 23, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (765) 653-4397
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Michael Chappo practices at Mill Pond Health Campus in Greencastle, Indiana
Dr. Chappo's primary practice is Mill Pond Health Campus, at 1014 Mill Pond Lane, Greencastle, IN 46135 in Putnam County. The practice phone is (765) 653-4397.
- Mill Pond Health Campus1014 Mill Pond Lane, Greencastle, IN 46135 · Putnam CountyPhone(765) 653-4397
Source: Dmand AI Affiliation Data
Dr. John Michael Chappo is affiliated with 5 sites of care and 4 medical groups
Dr. Chappo's primary practice is Mill Pond Health Campus in Greencastle, Indiana. Dr. Chappo is also affiliated with Witham Health Services. The medical group on file is Witham Health Services. Dmand AI also links Dr. Chappo to 3 more medical groups, 1 group practice or clinic, 1 home health agency and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Michael Chappo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chappo practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mill Pond Health Campus | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Michael Chappo is one of 1,987 internists in Indiana
Internal medicine is Dr. Chappo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chappo is licensed in Indiana.
Specialties and state licenses
- Internal medicine, IndianaPrimary
Internists near Dr. Chappo
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Michael Chappo billed Medicare for 227 services in 2024
CMS data shows 227 Medicare services from Dr. Chappo across 5 procedure codes in 2024, for 128 Medicare patients. Medicare paid $21,042 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chappo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4892024: 22754%
Dr. Chappo compared with the Indiana median for internists, 2024
- Dr. Chappo
- Indiana median
- Medicare services
- 227vs 52056% below
- Medicare patients
- 128vs 21240% below
- Part D claims
- 24vs 15985% below
Medians across 1,948 internists in Indiana with Dmand AI profiles that report each measure.
Dr. Chappo's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chappo and other internists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Michael Chappo treated 128 Medicare patients in 2024, average age 77
CMS counts 128 Medicare patients who saw Dr. Chappo in 2024. The largest group is 75 to 84, with 48 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.98, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chappo's median patient age at 74, with 55% women.
Dr. Chappo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chappo's Medicare patients by sex, 2024
- Women6954%
- Men5946%
Chronic conditions among Dr. Chappo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Heart failure50%
- Ischemic heart disease48%
- Chronic kidney disease47%
- Diabetes44%
- Atrial fibrillation43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chappo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Michael Chappo wrote 191 Medicare Part D claims in 2024
In 2024, Dr. Chappo wrote 191 Medicare Part D claims for 80 patients. 89% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $313 in total drug cost. In 2023, CMS named 298 claims across 16 drugs.
Dr. Chappo's Part D claims by kind of drug, 2024
- Generic170 claims89%
- Brand-name21 claims11%
Dr. Chappo's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chappo's Part D claims, 2024
- Antibiotics23%44 of 191 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2982024: 2492%
Drugs named by CMS: 2 in 2024, 16 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. John Michael Chappo takes part in Medicare
Dr. Chappo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Michael Chappo received $897 in industry payments from 2016 to 2025
CMS Open Payments shows 18 general payments to Dr. Chappo from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $155.
General payments to Dr. Chappo by program year, 2016 to 2025
Companies that paid Dr. Chappo the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Michael Chappo graduated from Kansas City University of Physicians and Surgeons
Dr. Chappo graduated from Kansas City University of Physicians and Surgeons in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Michael Chappo's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Michael Chappo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Michael Chappo's NPI number?
Dr. John Michael Chappo's NPI number is 1730347022. It was assigned on May 23, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. John Michael Chappo?
Dr. John Michael Chappo is an internist in Greencastle, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Michael Chappo practice?
Dr. Chappo practices at 1014 Mill Pond Lane, Greencastle, IN 46135. Dr. Chappo's primary practice is Mill Pond Health Campus in Greencastle, Indiana. Dmand AI also links Dr. Chappo to 3 medical groups, 1 group practice or clinic, 1 home health agency and 1 hospice.
What is Dr. John Michael Chappo's office phone number?
The practice phone on file for Dr. Chappo is (765) 653-4397.
What is Dr. John Michael Chappo's medical license number?
Dr. Chappo holds Indiana license 02003401A.
Which hospitals is Dr. John Michael Chappo affiliated with?
Dr. Chappo is affiliated with Witham Health Services.
What medical group is Dr. John Michael Chappo part of?
Dr. Chappo is linked to Witham Health Services. Dmand AI links Dr. Chappo to 3 more medical groups.
Does Dr. John Michael Chappo accept Medicare?
Yes. CMS data shows Dr. Chappo billed Medicare for 227 services in 2024, and Dr. Chappo accepts Medicare assignment.
How many Medicare patients does Dr. John Michael Chappo see?
CMS counts 128 Medicare patients who saw Dr. Chappo in 2024, with an average age of 77.
What services does Dr. John Michael Chappo bill to Medicare?
In 2024, Dr. Chappo's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).
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Where did Dr. John Michael Chappo go to medical school?
Dr. Chappo graduated from Kansas City University of Physicians and Surgeons in 2007.
What drugs does Dr. John Michael Chappo prescribe most?
In 2024 Medicare Part D data, Dr. Chappo's most prescribed drugs by claims were Tamsulosin HCl and Atorvastatin Calcium.
Has Dr. John Michael Chappo received payments from drug or device companies?
CMS Open Payments shows $897 in general payments to Dr. Chappo from 12 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. John Michael Chappo been practicing?
Dr. Chappo graduated from medical school in 2007, 19 years ago.
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