DR. HEWITT FITTS RYAN JR. M.D.
NPI 1710927850
Psychiatry & Neurology - Clinical Neurophysiology in Fresno, CA
NPI Status: Active since June 07, 2006
Contact Information
2615 E CLINTON AVE
VA CCHCS (127)
FRESNO, CA
ZIP 93703
Phone: (559) 228-5328
Fax: (559) 228-6943
- Individual
- Male
- Psychiatry & Neurology
- Clinical Neurophysiology
About HEWITT RYAN
This page provides the complete NPI Profile along with additional information for Hewitt Ryan, a provider established in Fresno, California with a medical specialization in Psychiatry & Neurology, focusing in clinical neurophysiology . The healthcare provider is registered in the NPI registry with number 1710927850 assigned on June 2006. The practitioner's primary taxonomy code is 2084N0600X with license number 20152 (AL). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1710927850
- Provider Name
- DR. HEWITT FITTS RYAN JR. M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 2615 E CLINTON AVE VA CCHCS (127) FRESNO, CA 93703
- Location Phone
- (559) 228-5328
- Location Fax
- (559) 228-6943
- Mailing Address
- 9629 N BUTTONWOOD CT FRESNO, CA 93720
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 06-07-2006
- 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
Psychiatry & Neurology Clinical Neurophysiology
- Taxonomy Code
- 2084N0600X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 20152
- License State
- AL
- Taxonomy Description
- Clinical Neurophysiology is a subspecialty with psychiatric or neurologic expertise in the diagnosis and management of central, peripheral, and autonomic nervous system disorders using combined clinical evaluation and electrophysiologic testing such as electroencephalography (EEG), electromyography (EMG), and nerve conduction studies (NCS).
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 | 2084N0400X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | A84200 (CA) |
| 2 | 2084N0400X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | 20152 (AL) |
| 3 | 2084N0600X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | A84200 (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 1710927850, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).
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 60 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
FRESNO, CA 93703
FRESNO, CA 93703
FRESNO, CA 93703
FRESNO, CA 93703
FRESNO, CA 93703
FRESNO, CA 93703
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1710927850, enumerated as an "individual" on June 07, 2006.
The provider is located at 2615 E CLINTON AVE VA CCHCS (127) FRESNO, CA 93703 and the phone number is (559) 228-5328.
Psychiatry & Neurology with taxonomy code 2084N0600X and a focus in Clinical Neurophysiology.
