DR. MARK R. ELSTAD M.D.
NPI 1275577736
Internal Medicine - Pulmonary Disease in Salt Lake City, UT

NPI Status: Active since June 15, 2006

Contact Information

VA MEDICAL CENTER
500 FOOTHILL DRIVE
SALT LAKE CITY, UT
ZIP 84148
Phone: (801) 584-5603

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  • Individual
  • Male
  • Internal Medicine
  • Pulmonary Disease

About MARK ELSTAD

This page provides the complete NPI Profile along with additional information for Mark Elstad, an internist established in Salt Lake City, Utah with a medical specialization in Internal Medicine, focusing in pulmonary disease . The healthcare provider is registered in the NPI registry with number 1275577736 assigned on June 2006. The practitioner's primary taxonomy code is 207RP1001X with license number 170754-1205 (UT). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1275577736
Provider Name
DR. MARK R. ELSTAD M.D.
Gender
Male
Entity Type
Individual
Location Address
VA MEDICAL CENTER 500 FOOTHILL DRIVE SALT LAKE CITY, UT 84148
Location Phone
(801) 584-5603
Mailing Address
4596 FORTUNA WAY SALT LAKE CITY, UT 84124
Mailing Phone
(801) 272-3740
Is Sole Proprietor?
Yes
Enumeration Date
06-15-2006
Last Update Date
07-08-2007
Code Navigator

An internist like Mark Elstad 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 Pulmonary Disease

Taxonomy Code
207RP1001X
Type
Allopathic & Osteopathic Physicians
License No.
170754-1205
License State
UT
Taxonomy Description
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

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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 1275577736, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
2
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
7
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
7
Unchanged
Pos 9
3
Doubled → 6
Check
6
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 7 → 14 → 5 5 → 10 → 1 7 → 14 → 5 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 4 + 5 + 1 + 0 + 7 + 1 + 4 + 7 + 6 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1275577736.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Psychologist (Clinical)
VA MEDICAL CENTER, 500 FOOTHILL BLVD
SALT LAKE CITY, UT 84148
Registered Nurse (Emergency)
VA MEDICAL CENTER
SALT LAKE CITY, UT 84148

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1275577736, enumerated as an "individual" on June 15, 2006.

The provider is located at VA MEDICAL CENTER 500 FOOTHILL DRIVE SALT LAKE CITY, UT 84148 and the phone number is (801) 584-5603.

Internal Medicine with taxonomy code 207RP1001X and a focus in Pulmonary Disease.