DR. GERALD BLALOCK DENNY II MD
NPI 1669617429
Internal Medicine in Salt Lake City, UT

NPI Status: Active since December 09, 2008

Contact Information

UNIVERSITY HEALTH CARE 50 NORTH MEDICAL DR
DEPARTMENT OF INTERNAL MEDICINE
SALT LAKE CITY, UT
ZIP 84132
Phone: (919) 624-3860

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  • Individual
  • Male
  • Internal Medicine

About GERALD DENNY

This page provides the complete NPI Profile along with additional information for Gerald Denny, an internist established in Salt Lake City, Utah with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1669617429 assigned on December 2008. The practitioner's primary taxonomy code is 207R00000X with license number 7147545-1205 (UT). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1669617429
Provider Name
DR. GERALD BLALOCK DENNY II MD
Gender
Male
Entity Type
Individual
Location Address
UNIVERSITY HEALTH CARE 50 NORTH MEDICAL DR DEPARTMENT OF INTERNAL MEDICINE SALT LAKE CITY, UT 84132
Location Phone
(919) 624-3860
Mailing Address
1147 GARFIELD AVE APARTMENT B SALT LAKE CITY, UT 84105
Mailing Phone
(919) 624-3860
Is Sole Proprietor?
Yes
Enumeration Date
12-09-2008
Last Update Date
12-09-2008
Code Navigator

An internist like Gerald Denny is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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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

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
7147545-1205
License State
UT
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

7147545-8905 (UT)

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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 1669617429, 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 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
6
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
1
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
4
Unchanged
Pos 9
2
Doubled → 4
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 6 → 12 → 3 7 → 14 → 5 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 1 + 2 + 1 + 1 + 4 + 4 + 4 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1669617429.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669617429, enumerated as an "individual" on December 09, 2008.

The provider is located at UNIVERSITY HEALTH CARE 50 NORTH MEDICAL DR DEPARTMENT OF INTERNAL MEDICINE SALT LAKE CITY, UT 84132 and the phone number is (919) 624-3860.

Internal Medicine with taxonomy code 207R00000X.