GERALD M HAASE M.D.
NPI 1518016161
Surgery - Surgical Oncology in Denver, CO

NPI Status: Active since January 10, 2007

Contact Information

CHILDREN'S HOSP OF DENVER
1056 E. 19TH AVE., BOX B-190
DENVER, CO
ZIP 80218
Phone: (303) 861-6278

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  • Individual
  • Male
  • Surgery
  • Surgical Oncology

About GERALD HAASE

This page provides the complete NPI Profile along with additional information for Gerald Haase, a provider established in Denver, Colorado with a medical specialization in Surgery, focusing in surgical oncology . The healthcare provider is registered in the NPI registry with number 1518016161 assigned on January 2007. The practitioner's primary taxonomy code is 2086X0206X with license number 37569 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1518016161
Provider Name
GERALD M HAASE M.D.
Gender
Male
Entity Type
Individual
Location Address
CHILDREN'S HOSP OF DENVER 1056 E. 19TH AVE., BOX B-190 DENVER, CO 80218
Location Phone
(303) 861-6278
Mailing Address
5655 S GRAPE CT GREENWOOD VILLAGE, CO 80121
Mailing Phone
(303) 861-6278
Is Sole Proprietor?
No
Enumeration Date
01-10-2007
Last Update Date
07-08-2007
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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 Surgical Oncology

Taxonomy Code
2086X0206X
Type
Allopathic & Osteopathic Physicians
License No.
37569
License State
MA
Taxonomy Description
A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.

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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 1518016161, we treat the final digit (1) 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 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 1).

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
1
Doubled → 2
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
1
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
1
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
1
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 1 → 2 0 → 0 6 → 12 → 3 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 2 + 8 + 0 + 1 + 1 + 2 + 1 + 1 + 2 + 24 = 49

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

The next multiple of ten after 49 is 50. The difference is the calculated check digit.

50 - 49 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1518016161.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1518016161, enumerated as an "individual" on January 10, 2007.

The provider is located at CHILDREN'S HOSP OF DENVER 1056 E. 19TH AVE., BOX B-190 DENVER, CO 80218 and the phone number is (303) 861-6278.

Surgery with taxonomy code 2086X0206X and a focus in Surgical Oncology.