Dr. John L. Harcha, MD
- Medicare services, 2020
- 196
- Part D claims, 2024
- 349
- Hospital affiliations
- 1
- Industry payments
- $1,096
- Medical groups
- 2
- Practice address
- 3535 Southern Boulevard, Kettering, OH 45429
- Practice phone
- Call (937) 298-4331
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Harcha'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 L. Harcha is a hematologist and oncologist in Cincinnati, Ohio
Dr. Harcha practices at Kettering Health Main Campus in Kettering, Ohio, part of Kettering Adventist Healthcare.
Dr. Harcha's NPI, 1639548589, was assigned on September 22, 2015. Dr. Harcha holds Ohio license 57.249000.
- NPI
- 1639548589NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294044533
- NPI enumeration date
- September 22, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (937) 298-4331
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John L. Harcha practices in Kettering and Cincinnati
Dr. Harcha's primary practice is Kettering Health Main Campus, at 3535 Southern Boulevard, Kettering, OH 45429 in Montgomery County. The practice phone is (937) 298-4331. The NPI Registry lists Dr. Harcha's practice address as 3188 Bellevue Ave, Cincinnati, OH 45219.
- Kettering Health Main CampusPrimary3535 Southern Boulevard, Kettering, OH 45429 · Montgomery CountyPhone(937) 298-4331
- NPI Registry address3188 Bellevue Ave, Cincinnati, OH 45219 · Hamilton CountyPhone(937) 395-8693
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. John L. Harcha is affiliated with 1 site of care and 2 medical groups
Dr. Harcha's primary practice is Kettering Health Main Campus in Kettering, Ohio, part of Kettering Adventist Healthcare. The medical group on file is Punxsutawney Area Hospital. Dmand AI also links Dr. Harcha to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John L. Harcha's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harcha practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kettering Health Main Campus | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Kettering Adventist Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John L. Harcha is one of 460 hematologists and oncologists in Ohio
Hematology and oncology is Dr. Harcha's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Harcha is licensed in Ohio.
Specialties and state licenses
- Hematology and oncology, OhioPrimary
Hematologists and oncologists near Dr. Harcha
Counts of hematologists and oncologists 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 L. Harcha billed Medicare for 196 services in 2020
CMS data shows 196 Medicare services from Dr. Harcha across 5 procedure codes in 2020. Medicare paid $10,849 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Harcha's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 7142020: 19673%
Dr. Harcha compared with the Ohio median for hematologists and oncologists, 2020
- Dr. Harcha
- Ohio median
- Medicare services
- 196vs 62669% below
- Part D claims
- 185vs 47861% below
Medians across 452 hematologists and oncologists in Ohio with Dmand AI profiles that report each measure.
Dr. Harcha's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Harcha?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Harcha and other hematologists and oncologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John L. Harcha's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Harcha's median patient age at 70, with 43% women.
Dr. Harcha's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women43%
- Men54%
Source: Dmand AI Patient Panel Data
Dr. John L. Harcha wrote 349 Medicare Part D claims in 2024
In 2024, Dr. Harcha wrote 349 Medicare Part D claims for 58 patients. 84% of them were for generic drugs. CMS names the drug for 185 of them, across 12 drugs with 11 or more claims each, at $549,905 in total drug cost. In 2023, CMS named 82 claims across 4 drugs.
Dr. Harcha's Part D claims by kind of drug, 2024
- Generic292 claims84%
- Brand-name and other57 claims16%
Dr. Harcha'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. Harcha's Part D claims, 2024
- Opioids7%23 of 349 claims
- Antibiotics3%12 of 349 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: 822024: 185126%
Drugs named by CMS: 12 in 2024, 4 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 L. Harcha takes part in Medicare
Dr. Harcha 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 L. Harcha received $1,096 in industry payments from 2022 to 2025
CMS Open Payments shows 13 general payments to Dr. Harcha from 11 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $275.
General payments to Dr. Harcha by program year, 2022 to 2025
Companies that paid Dr. Harcha the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John L. Harcha'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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 Data |
| 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) |
| 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 L. Harcha
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 L. Harcha's NPI number?
Dr. John L. Harcha's NPI number is 1639548589. It was assigned on September 22, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. John L. Harcha?
Dr. John L. Harcha is a hematologist and oncologist in Cincinnati, Ohio. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. John L. Harcha practice?
Dr. Harcha practices at 3535 Southern Boulevard, Kettering, OH 45429. Dr. Harcha also practices at 3188 Bellevue Ave, Cincinnati, OH 45219. Dr. Harcha's primary practice is Kettering Health Main Campus in Kettering, Ohio, part of Kettering Adventist Healthcare. Dmand AI also links Dr. Harcha to 1 medical group.
What is Dr. John L. Harcha's office phone number?
The practice phone on file for Dr. Harcha is (937) 298-4331.
What is Dr. John L. Harcha's medical license number?
Dr. Harcha holds Ohio license 57.249000.
Which hospitals is Dr. John L. Harcha affiliated with?
Dr. Harcha practices at Kettering Health Main Campus in Kettering, Ohio.
What medical group is Dr. John L. Harcha part of?
Dr. Harcha is linked to Punxsutawney Area Hospital. Dmand AI links Dr. Harcha to 1 more medical group.
Does Dr. John L. Harcha accept Medicare?
Yes. CMS data shows Dr. Harcha billed Medicare for 196 services in 2020, and Dr. Harcha accepts Medicare assignment.
What services does Dr. John L. Harcha bill to Medicare?
In 2020, Dr. Harcha's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99233).
What drugs does Dr. John L. Harcha prescribe most?
In 2024 Medicare Part D data, Dr. Harcha's most prescribed drugs by claims were Prednisone, Acyclovir and Ondansetron HCl.
Has Dr. John L. Harcha received payments from drug or device companies?
CMS Open Payments shows $1,096 in general payments to Dr. Harcha from 11 companies from 2022 to 2025. The largest total came from Amgen Inc.
How long has Dr. John L. Harcha been practicing?
Dr. Harcha's NPI was assigned in 2015.
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