DR. GERALD RANDGAARD HANSON M.D.
NPI 1770545287
Pathology - Hematology in Huntington Beach, CA
NPI Status: Active since April 03, 2006
Contact Information
8591 LORRAINE DR
HUNTINGTON BEACH, CA
ZIP 92646
Phone: (714) 963-6203
- Individual
- Male
- Pathology
- Hematology
About GERALD HANSON
This page provides the complete NPI Profile along with additional information for Gerald Hanson, a provider established in Huntington Beach, California with a medical specialization in Pathology, focusing in hematology . The healthcare provider is registered in the NPI registry with number 1770545287 assigned on April 2006. The practitioner's primary taxonomy code is 207ZH0000X with license number G27838 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1770545287
- Provider Name
- DR. GERALD RANDGAARD HANSON M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 8591 LORRAINE DR HUNTINGTON BEACH, CA 92646
- Location Phone
- (714) 963-6203
- Mailing Address
- 8591 LORRAINE DR HUNTINGTON BEACH, CA 92646
- Mailing Phone
- (714) 963-6203
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-03-2006
- Last Update Date
- 09-11-2025
- Code Navigator
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
Pathology Hematology
- Taxonomy Code
- 207ZH0000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- G27838
- License State
- CA
- Taxonomy Description
- A hematopathologist is expert in diseases that affect blood cells, blood clotting mechanisms, bone marrow and lymph nodes. This physician has the knowledge and technical skills essential for the laboratory diagnosis of anemias, leukemias, lymphomas, bleeding disorders and blood clotting disorders.
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) |
|---|---|---|---|---|
| 1 | 207ZP0101X | Allopathic & Osteopathic Physicians | Pathology | G27838 (CA) |
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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 1770545287, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 53 is 60. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1770545287, enumerated as an "individual" on April 03, 2006.
The provider is located at 8591 LORRAINE DR HUNTINGTON BEACH, CA 92646 and the phone number is (714) 963-6203.
Pathology with taxonomy code 207ZH0000X and a focus in Hematology.
