DENNIS M LEAHY M.D.
NPI 1164531539
Dermatology in Saint Paul, MN

NPI Status: Active since August 30, 2006

Contact Information

393 DUNLAP ST N
SUITE 720
SAINT PAUL, MN
ZIP 55104
Phone: (651) 645-3628

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  • Individual
  • Male
  • Dermatology

About DENNIS LEAHY

This page provides the complete NPI Profile along with additional information for Dennis Leahy, a provider established in Saint Paul, Minnesota with a medical specialization in Dermatology. The healthcare provider is registered in the NPI registry with number 1164531539 assigned on August 2006. The practitioner's primary taxonomy code is 207N00000X with license number 16962 (MN). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1164531539
Provider Name
DENNIS M LEAHY M.D.
Gender
Male
Entity Type
Individual
Location Address
393 DUNLAP ST N SUITE 720 SAINT PAUL, MN 55104
Location Phone
(651) 645-3628
Mailing Address
60 PLATO BLVD E SUITE 270 SAINT PAUL, MN 55107
Is Sole Proprietor?
No
Enumeration Date
08-30-2006
Last Update Date
07-08-2007
Code Navigator

A dermatologist like Dennis Leahy is a medical specialty involving the management of skin conditions and diseases. Dermatologists diagnose some sexually transmitted diseases, warts, cancer, acne, dermatitis and may offer cosmetic treatments, and therapies that reduce age spots and wrinkles.

Location Map

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

Dermatology

Taxonomy Code
207N00000X
Type
Allopathic & Osteopathic Physicians
License No.
16962
License State
MN
Taxonomy Description
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

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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 1164531539, 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 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
1
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
4
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
3
Unchanged
Pos 7
1
Doubled → 2
Pos 8
5
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 6 → 12 → 3 5 → 10 → 1 1 → 2 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 2 + 4 + 1 + 0 + 3 + 2 + 5 + 6 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1164531539.

Other Providers at the Same Location


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

Occupational Therapist (Hand)
393 DUNLAP ST N, SUITE 736
SAINT PAUL, MN 55104
Internal Medicine
393 DUNLAP ST N, SUITE 834
SAINT PAUL, MN 55104
Plastic Surgery
393 DUNLAP ST N, 832
SAINT PAUL, MN 55104
Dietitian, Registered
393 DUNLAP ST N, SUITE 833
SAINT PAUL, MN 55104
Dentist (General Practice)
393 DUNLAP ST N, SUITE 308
SAINT PAUL, MN 55104
Pharmacist
393 DUNLAP ST N, #110
SAINT PAUL, MN 55104
Clinic/Center
393 DUNLAP ST N, SUITE 834
SAINT PAUL, MN 55104
Clinic/Center (Dental)
393 DUNLAP ST N, SUITE 308
SAINT PAUL, MN 55104
Dentist (Periodontics)
393 DUNLAP ST N, CENTRAL MEDICAL BUILDING, SUITE #100
SAINT PAUL, MN 55104
Specialist
393 DUNLAP ST N, STE LL34
SAINT PAUL, MN 55104
Pain Medicine (Pain Medicine)
393 DUNLAP ST N, SUITE LL34
SAINT PAUL, MN 55104
Community/Behavioral Health
393 DUNLAP ST N, SUITE 825
SAINT PAUL, MN 55104
Custodial Care Facility (Adult Care Home)
393 DUNLAP ST N, SUITE 105
SAINT PAUL, MN 55104
Psychologist (Counseling)
393 DUNLAP ST N, SUITE 450F
SAINT PAUL, MN 55104
Physician Assistant (Medical)
393 DUNLAP ST N, LL34
SAINT PAUL, MN 55104
Registered Nurse (Psychiatric/Mental Health)
393 DUNLAP ST N, 400H
SAINT PAUL, MN 55104
Hearing Aid Equipment
393 DUNLAP ST N, SUITE 115
SAINT PAUL, MN 55104
Non-emergency Medical Transport (VAN)
393 DUNLAP ST N, STE 450
SAINT PAUL, MN 55104
Registered Nurse (Home Health)
393 DUNLAP ST N, SUITE #105
SAINT PAUL, MN 55104
Non-emergency Medical Transport (VAN)
393 DUNLAP ST N, # 400K
SAINT PAUL, MN 55104

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164531539, enumerated as an "individual" on August 30, 2006.

The provider is located at 393 DUNLAP ST N SUITE 720 SAINT PAUL, MN 55104 and the phone number is (651) 645-3628.

Dermatology with taxonomy code 207N00000X.