STEVEN FRANCIS RUH M.D.
NPI 1902929193
Preventive Medicine - Addiction Medicine in Riverside, CA
NPI Status: Active since April 10, 2007
Contact Information
1021 W LA CADENA DR
RIVERSIDE, CA
ZIP 92501
Phone: (951) 784-8010
Fax: (951) 784-2859
- Individual
- Male
- Preventive Medicine
- Addiction Medicine
About STEVEN RUH
This page provides the complete NPI Profile along with additional information for Steven Ruh, a provider established in Riverside, California with a medical specialization in Preventive Medicine, focusing in addiction medicine . The healthcare provider is registered in the NPI registry with number 1902929193 assigned on April 2007. The practitioner's primary taxonomy code is 2083A0300X with license number C41583 (CA). The provider is registered as an individual and his NPI record was last updated May 2026.
- NPI
- 1902929193
- Provider Name
- STEVEN FRANCIS RUH M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1021 W LA CADENA DR RIVERSIDE, CA 92501
- Location Phone
- (951) 784-8010
- Location Fax
- (951) 784-2859
- Mailing Address
- 5934 FREMONT CIR CAMARILLO, CA 93012
- Mailing Phone
- (805) 341-5953
- Mailing Fax
- (951) 784-2859
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 04-10-2007
- Last Update Date
- 05-07-2026
- Code Navigator
Location Map
Secondary Locations
- 117 E Harry Bridges Blvd
Wilmington, CA 90744
(310) 549-8383
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
Preventive Medicine Addiction Medicine
- Taxonomy Code
- 2083A0300X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- C41583
- License State
- CA
- Taxonomy Description
- A physician engaged in the subspecialty practice of Addiction Medicine who specializes in the prevention, evaluation, diagnosis, treatment, and recovery of persons with the disease of addiction.
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 | 207LA0401X | Allopathic & Osteopathic Physicians | Anesthesiology | C41583 (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 1902929193, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).
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 67 is 70. 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.
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1902929193, enumerated as an "individual" on April 10, 2007.
The provider is located at 1021 W LA CADENA DR RIVERSIDE, CA 92501 and the phone number is (951) 784-8010.
Preventive Medicine with taxonomy code 2083A0300X and a focus in Addiction Medicine.
