DR. JOHN LEDONNE M.D.
NPI 1558452839
Surgery in Baltimore, MD

NPI Status: Active since September 28, 2006

Contact Information

6701 N CHARLES ST
DEPT OF SURGERY
BALTIMORE, MD
ZIP 21204
Phone: (443) 849-2000

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  • Individual
  • Male
  • Surgery

About JOHN LEDONNE

This page provides the complete NPI Profile along with additional information for John Ledonne, a provider established in Baltimore, Maryland with a medical specialization in Surgery. The healthcare provider is registered in the NPI registry with number 1558452839 assigned on September 2006. The practitioner's primary taxonomy code is 208600000X with license number D35459 (MD). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1558452839
Provider Name
DR. JOHN LEDONNE M.D.
Gender
Male
Entity Type
Individual
Location Address
6701 N CHARLES ST DEPT OF SURGERY BALTIMORE, MD 21204
Location Phone
(443) 849-2000
Mailing Address
PO BOX 631568 BALTIMORE, MD 21263
Is Sole Proprietor?
No
Enumeration Date
09-28-2006
Last Update Date
07-13-2007
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A surgeon like John Ledonne treats injuries, diseases, and deformities through surgical operations. A surgeon could correct physical deformities, repair bone and tissue, or perform preventive or elective surgeries. Surgeons also examine patients, perform and interpret diagnostic tests, and provide counsel on preventive healthcare.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Surgery

Taxonomy Code
208600000X
Type
Allopathic & Osteopathic Physicians
License No.
D35459
License State
MD
Taxonomy Description
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
704L422DMEDICARE PIN (08)MD 
7931MEDICARE PIN (08)MD 
S125/0003OTHER (01)MDCAREFIRST REGIONAL
KJ60GB/416731-01OTHER (01)MDCAREFIRST MARYLAND
7931J/416731-01OTHER (01)MDCAREFIRST MD INDIVIDUAL
S953/0001OTHER (01)MDCAREFIRST REGIONAL INDIV
D91803MEDICARE UPIN (02) 

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1558452839, we treat the final digit (9) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
8
Unchanged
Pos 5
4
Doubled → 8
Pos 6
5
Unchanged
Pos 7
2
Doubled → 4
Pos 8
8
Unchanged
Pos 9
3
Doubled → 6
Check
9
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 5 → 10 → 1 4 → 8 2 → 4 3 → 6

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 5 + 1 + 0 + 8 + 8 + 5 + 4 + 8 + 6 + 24 = 71

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1558452839.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Nurse Practitioner (Adult Health)
6701 N CHARLES ST, SUITE 4105
BALTIMORE, MD 21204
Internal Medicine
6701 N CHARLES ST, STE 4106
BALTIMORE, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Radiology (Radiation Oncology)
6701 N CHARLES ST
TOWSON, MD 21204
Radiology (Radiation Oncology)
6701 N CHARLES ST
TOWSON, MD 21204
Radiology (Radiation Oncology)
6701 N CHARLES ST
TOWSON, MD 21204
Radiology (Radiation Oncology)
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Anesthesiology
6701 N CHARLES ST
TOWSON, MD 21204
Nurse Anesthetist, Certified Registered
6701 N CHARLES ST
TOWSON, MD 21204
Nurse Anesthetist, Certified Registered
6701 N CHARLES ST
TOWSON, MD 21204
Nurse Anesthetist, Certified Registered
6701 N CHARLES ST
TOWSON, MD 21204

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1558452839, enumerated as an "individual" on September 28, 2006.

The provider is located at 6701 N CHARLES ST DEPT OF SURGERY BALTIMORE, MD 21204 and the phone number is (443) 849-2000.

Surgery with taxonomy code 208600000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.