Dr. John Anthony Gonzaba, DO
- Medicare services, 2024
- 120
- Medicare patients, 2024
- 140
- Part D claims, 2024
- 89
- Hospital affiliations
- 1
- Industry payments
- $1,770
- Practice address
- 245 Atwood Street, Corydon, IN 47112
- Practice phone
- Call (812) 738-4251
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gonzaba's professional email, personal email and mobile number
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Dr. John Anthony Gonzaba is a general surgeon in Corydon, Indiana
Dr. Gonzaba practices at Harrison County Hospital in Corydon, Indiana, part of Harrison County Government, Indiana.
Dr. Gonzaba's NPI, 1508854654, was assigned on October 12, 2005. Dr. Gonzaba graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1992. Dr. Gonzaba holds Indiana license 02002543A.
- NPI
- 1508854654NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113053414
- NPI enumeration date
- October 12, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (812) 738-4251
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Anthony Gonzaba practices at 2 locations in Corydon, Indiana
Dr. Gonzaba's primary practice is Harrison County Hospital, at 245 Atwood Street, Corydon, IN 47112 in Harrison County. The practice phone is (812) 738-4251. Dr. Gonzaba also practices at Harrison County Hospital, 1141 Hospital NW Dr, Corydon, IN 47112.
- Harrison County HospitalPrimary245 Atwood Street, Corydon, IN 47112 · Harrison CountyPhone(812) 738-4251
- Harrison County Hospital1141 Hospital NW Dr, Corydon, IN 47112 · Harrison CountyPhone(812) 738-7865
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. John Anthony Gonzaba is affiliated with 2 sites of care and 1 medical group
Dr. Gonzaba's primary practice is Harrison County Hospital in Corydon, Indiana, part of Harrison County Government, Indiana. The medical group on file is Harrison County Hospital. Dmand AI also links Dr. Gonzaba to 1 more group practice or clinic, 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 Anthony Gonzaba's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gonzaba practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harrison County Hospital | Available with a free account |
| +1 more affiliated site | 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 Harrison County Government, Indiana and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Anthony Gonzaba is one of 530 general surgeons in Indiana
Surgery is Dr. Gonzaba's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Gonzaba is licensed in Indiana.
Specialties and state licenses
- Surgery, IndianaPrimary
General surgeons near Dr. Gonzaba
Counts of general surgeons 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 Anthony Gonzaba billed Medicare for 120 services in 2024
CMS data shows 120 Medicare services from Dr. Gonzaba across 5 procedure codes in 2024, for 140 Medicare patients. Medicare paid $12,184 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gonzaba's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 482024: 7148%
- Surgery
- 2023: 342024: 4944%
Dr. Gonzaba compared with the Indiana median for general surgeons, 2024
- Dr. Gonzaba
- Indiana median
- Medicare services
- 120vs 15623% below
- Medicare patients
- 140vs 1317% above
- Part D claims
- 59vs 4048% above
Medians across 526 general surgeons in Indiana with Dmand AI profiles that report each measure.
Dr. Gonzaba'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. Gonzaba and other general surgeons in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Anthony Gonzaba treated 140 Medicare patients in 2024, average age 72
CMS counts 140 Medicare patients who saw Dr. Gonzaba in 2024. The largest group is 65 to 74, with 75 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.06, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gonzaba's median patient age at 65, with 47% women.
Dr. Gonzaba's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Gonzaba's Medicare patients by sex, 2024
- Women6144%
- Men7956%
Chronic conditions among Dr. Gonzaba's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis50%
- Ischemic heart disease32%
- Diabetes29%
- Anxiety19%
- Mood disorders19%
- Cancer18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gonzaba's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Anthony Gonzaba wrote 89 Medicare Part D claims in 2024
In 2024, Dr. Gonzaba wrote 89 Medicare Part D claims for 46 patients. 97% of them were for generic drugs. CMS names the drug for 59 of them, across 3 drugs with 11 or more claims each, at $851 in total drug cost. In 2023, CMS named 31 claims across 2 drugs.
Dr. Gonzaba's Part D claims by kind of drug, 2024
- Generic86 claims97%
- Brand-name and other3 claims3%
Dr. Gonzaba'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. Gonzaba's Part D claims, 2024
- Opioids33%29 of 89 claims
- Antibiotics28%25 of 89 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: 312024: 5990%
Drugs named by CMS: 3 in 2024, 2 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
Dr. John Anthony Gonzaba ranks in the 51st percentile for colonoscopy in Medicare
Dr. Gonzaba accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 26 procedures of colonoscopy by Dr. Gonzaba, more than 51% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Gonzaba ranks in Medicare procedure volume
- Colonoscopy
- 51st percentile26 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Anthony Gonzaba received $1,770 in industry payments from 2016 to 2025
CMS Open Payments shows 34 general payments to Dr. Gonzaba from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 66% of the total. Stryker Corporation paid the most, $907.
General payments to Dr. Gonzaba by program year, 2016 to 2025
General payments to Dr. Gonzaba by kind, 2016 to 2025
- Food and beverage$1,17566%
- Travel and lodging$59534%
Companies that paid Dr. Gonzaba 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 Anthony Gonzaba graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville
Dr. Gonzaba graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Anthony Gonzaba'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 DataDmand AI Practice 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)Doctors and Clinicians Utilization Data (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 Anthony Gonzaba
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 Anthony Gonzaba's NPI number?
Dr. John Anthony Gonzaba's NPI number is 1508854654. It was assigned on October 12, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Anthony Gonzaba?
Dr. John Anthony Gonzaba is a general surgeon in Corydon, Indiana. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Anthony Gonzaba practice?
Dr. Gonzaba practices at 245 Atwood Street, Corydon, IN 47112. Dr. Gonzaba also practices at 1141 Hospital NW Dr, Corydon, IN 47112. Dr. Gonzaba's primary practice is Harrison County Hospital in Corydon, Indiana, part of Harrison County Government, Indiana. Dmand AI also links Dr. Gonzaba to 1 group practice or clinic.
What is Dr. John Anthony Gonzaba's office phone number?
The practice phone on file for Dr. Gonzaba is (812) 738-4251.
What is Dr. John Anthony Gonzaba's medical license number?
Dr. Gonzaba holds Indiana license 02002543A.
Which hospitals is Dr. John Anthony Gonzaba affiliated with?
Dr. Gonzaba practices at Harrison County Hospital in Corydon, Indiana.
What medical group is Dr. John Anthony Gonzaba part of?
Dr. Gonzaba is linked to Harrison County Hospital.
Does Dr. John Anthony Gonzaba accept Medicare?
Yes. CMS data shows Dr. Gonzaba billed Medicare for 120 services in 2024, and Dr. Gonzaba accepts Medicare assignment.
How many Medicare patients does Dr. John Anthony Gonzaba see?
CMS counts 140 Medicare patients who saw Dr. Gonzaba in 2024, with an average age of 72.
What services does Dr. John Anthony Gonzaba bill to Medicare?
In 2024, Dr. Gonzaba's most billed Medicare services were office visit, new patient (99204), surgery: digestive system (45380) and surgery: digestive system (45385).
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Where did Dr. John Anthony Gonzaba go to medical school?
Dr. Gonzaba graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1992.
What drugs does Dr. John Anthony Gonzaba prescribe most?
In 2024 Medicare Part D data, Dr. Gonzaba's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Pantoprazole Sodium and Colestipol HCl.
Has Dr. John Anthony Gonzaba received payments from drug or device companies?
CMS Open Payments shows $1,770 in general payments to Dr. Gonzaba from 16 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. John Anthony Gonzaba been practicing?
Dr. Gonzaba graduated from medical school in 1992, 34 years ago.
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