Dr. John Dennis Ehrhardt , MD
Surgery β’ Louisville, KY
225 Abraham Flexner Way Ste 700
Louisville, KY 402023868
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
225 Abraham Flexner Way Ste 700
Louisville, KY 402023868
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Corydon, IN; Florence, KY. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2020
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2025
All general payments: $2,316.28 across 14 records.
By nature of payment
- Travel and Lodging: $1,225.22 across 4 records.
- Food and Beverage: $1,091.06 across 10 records.
Reporting-company totals (3 largest of 5)
- Zimmer Biomet Holdings, Inc.: $1,186.65 across 7 records.
- AXOGEN: $805.72 across 3 records.
- AtriCure, Inc.: $169.94 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
6 years (graduated 2020)
CMS Doctors and Clinicians data list 2020 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2020
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Ehrhardt has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Ehrhardt as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Louisville and Kentucky
106 active clinicians are listed under Surgery with a practice address in Louisville, KY (459 in Kentucky).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Louisville
3.8% of these 106 clinicians have the CMS telehealth indicator.
62.3% of these 106 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $99.99 in 2023 to $2,316.28 in 2025.
- 2023: $99.99
- 2025: $2,316.28
Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 β December 31, 2025): 14 records totaling $2,316.28.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Zimmer Biomet Holdings, Inc. |
Travel and Lodging
In-kind items and services
|
AdvantageRib | General | $622.97 |
| AXOGEN |
Food and Beverage
In-kind items and services
|
β | General | $417.00 |
| Zimmer Biomet Holdings, Inc. |
Travel and Lodging
In-kind items and services
|
AdvantageRib | General | $299.32 |
| AXOGEN |
Travel and Lodging
In-kind items and services
|
β | General | $267.93 |
| AtriCure, Inc. |
Food and Beverage
In-kind items and services
|
AtriCure cryoICE Cryoablation System (CRYO2) | General | $169.94 |
| AXOGEN |
Food and Beverage
In-kind items and services
|
β | General | $120.79 |
| Davol Inc. |
Food and Beverage
In-kind items and services
|
Phasix Mesh | General | $108.52 |
| Zimmer Biomet Holdings, Inc. |
Food and Beverage
In-kind items and services
|
RIBFIX TITAN | General | $73.00 |
| Zimmer Biomet Holdings, Inc. |
Food and Beverage
In-kind items and services
|
RIBFIX TITAN | General | $65.25 |
| Zimmer Biomet Holdings, Inc. |
Food and Beverage
In-kind items and services
|
STERNALOCK 360 SYSTEM | General | $61.20 |
| Zimmer Biomet Holdings, Inc. |
Travel and Lodging
In-kind items and services
|
AdvantageRib | General | $35.00 |
| Zimmer Biomet Holdings, Inc. |
Food and Beverage
In-kind items and services
|
STERNALOCK 360 SYSTEM | General | $29.91 |
| Davol Inc. |
Food and Beverage
In-kind items and services
|
Phasix Mesh | General | $28.41 |
| Integra LifeSciences Corporation |
Food and Beverage
In-kind items and services
|
Integra | General | $17.04 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-01-21NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - GENERAL SURGERY
I20260130003236
KY
6002262730
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
1263 Hospital Dr Nw Ste 270
Corydon, IN 471122178
Phone: 8127384251
4900 Houston Rd
Florence, KY 410424824
Phone: 8593018074
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Occupational Therapist
Occupational Therapist
Occupational Therapist - Hand
Occupational Therapist
Physician Assistant
Physician Assistant
Orthopaedic Surgery - Hand Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Hand Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Hand Surgery
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Surgery (license number reported to NPPES: IN 01096967A)
Registered at 225 ABRAHAM FLEXNER WAY STE 700, LOUISVILLE, KY 402023868 (Tel: 5025614200)
Registered at 225 ABRAHAM FLEXNER WAY STE 850, LOUISVILLE, KY 402023840 (Tel: 5025614266)
NPI status registered as active in NPPES database
Registered at 11750 SW 40TH ST, MIAMI, FL 331753530 (Tel: 3052233000)
Registered at 14048 WEYMOUTH RUN, ORLANDO, FL 328287922 (Tel: 4076172237)
Recorded as JOHN EHRHARDT, M.D.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery Specialists in Louisville
- Dr. Andrew Tumen, MD, MS
- Dr. Timothy Dawson, MD
- Dr. Jack O'grady, MD
- Dr. William Bradford, MD
- Dr. Ivy Lewis, MD
- Dr. Farid Kehdy, MD
Mailing Address
225 Abraham Flexner Way Ste 850
Louisville, KY 402023840
Phone: 5025614266