Dr. John Ledonne , MD
Surgery β’ Baltimore, MD
6701 N Charles St, Dept Of Surgery
Baltimore, MD 212046808
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on September 28, 2006; this date does not establish years in practice.
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Published CMS data list 24 Medicare Part D prescriptions, including refills, in 2017.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2017. Published rows only; this is not a quality measure.
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Published Part D records, 2017:
- Rizatriptan (Rizatriptan Benzoate) β 12 prescription fills, including refills.
- Valsartan β 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2017. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table Β· Guide: How to read Medicare Part D prescriber data
Practice Location & Contact Primary Location
6701 N Charles St
Dept Of Surgery
Baltimore, MD 212046808
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
24 standardized 30-day fills in 2017
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$386 in 2017
The total cost of these prescriptions in 2017, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2017.
Open Payments general payments, program year 2025
All general payments: $52,208.37 across 48 records.
By nature of payment (3 largest of 4)
- Consulting Fee: $38,137.83 across 13 records.
- Travel and Lodging: $7,077.86 across 20 records.
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $5,500.00 across 2 records.
Reporting-company totals (3 largest of 9)
- Ethicon Inc.: $31,074.50 across 21 records.
- B. Braun Medical Inc.: $10,379.57 across 7 records.
- ECS OPCO 1 LLC: $6,371.70 across 6 records.
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).
NPI first issued
2006
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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.
Compared with the same specialty in Baltimore and Maryland
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Ledonne are from 2017.
245 active clinicians are listed under Surgery with a practice address in Baltimore, MD (672 in Maryland).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Baltimore
13.1% of these 245 clinicians have the CMS telehealth indicator.
40.8% of these 245 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.
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2017 only.
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30-day fills
CMS data for 30-day fills are available for 2017 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2017 only.
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 11% from $58,400.61 in 2021 to $52,208.37 in 2025.
- 2021: $58,400.61
- 2022: $41,022.08
- 2023: $50,661.26
- 2024: $48,148.25
- 2025: $52,208.37
Sources: CMS Medicare Part D Prescribers (2017), 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): 48 records totaling $52,208.37.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $5,219.71 |
| B. Braun Medical Inc. |
Consulting Fee
Cash or cash equivalent
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INTROCAN SAFETY | General | $4,640.00 |
| B. Braun Medical Inc. |
Consulting Fee
Cash or cash equivalent
|
INTROCAN SAFETY | General | $4,640.00 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $4,060.26 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $3,770.80 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $3,481.07 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $3,480.99 |
| ECS OPCO 1 LLC |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
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PICCOLO MEDICAL | General | $2,750.00 |
| ECS OPCO 1 LLC |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
PICCOLO MEDICAL | General | $2,750.00 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $1,885.00 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $1,885.00 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $1,450.00 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $1,305.00 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
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BIOPATCH | General | $1,160.00 |
| Ethicon Inc. |
Consulting Fee
Cash or cash equivalent
|
BIOPATCH | General | $1,160.00 |
| Medical Device Business Services, Inc. |
Travel and Lodging
In-kind items and services
|
β | General | $1,146.80 |
| Medical Device Business Services, Inc. |
Travel and Lodging
In-kind items and services
|
β | General | $649.18 |
| Ethicon Inc. |
Travel and Lodging
Cash or cash equivalent
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BIOPATCH | General | $635.02 |
| Medical Device Business Services, Inc. |
Travel and Lodging
In-kind items and services
|
BIOPATCH | General | $564.04 |
| ECS OPCO 1 LLC |
Travel and Lodging
Cash or cash equivalent
|
PICCOLO MEDICAL | General | $505.95 |
| Medical Device Business Services, Inc. |
Travel and Lodging
In-kind items and services
|
BIOPATCH | General | $483.83 |
| B. Braun Medical Inc. |
Travel and Lodging
Cash or cash equivalent
|
INTROCAN SAFETY | General | $471.96 |
| Medical Device Business Services, Inc. |
Travel and Lodging
In-kind items and services
|
β | General | $314.47 |
| Medical Device Business Services, Inc. |
Travel and Lodging
In-kind items and services
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BIOPATCH | General | $298.16 |
| Ethicon Inc. |
Travel and Lodging
Cash or cash equivalent
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BIOPATCH | General | $288.09 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2017.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Rizatriptan | Rizatriptan Benzoate | 12 | 360 | $148.51 | β |
| Valsartan | Valsartan | 12 | 360 | $237.98 | β |
Source: CMS Part D by Provider and Drug, 2017; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
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.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Nurse Practitioner - Adult Health
Certified Registered Nurse Practitioner
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History
NPI enumerated September 28, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Surgery Specialists in Baltimore
- Dr. Naresh Khanna, MD
- Dr. Nora Meenaghan, MD
- Tarek Hassab
- Dr. Solomon Levin, MD
- Dr. Stephen Bartlett, MD
- Dr. Nelson Goldberg, MD
Mailing Address
Po Box 631568
Baltimore, MD 212631568