DR. STEPHEN HOPKINS RICHMOND M.D.
NPI 1013051143
Psychiatry & Neurology - Addiction Psychiatry in Menlo Park, CA
NPI Status: Active since February 20, 2007
Contact Information
1220 UNIVERSITY DR
SUITE 101
MENLO PARK, CA
ZIP 94025
Phone: (650) 599-3700
- Individual
- Male
- Psychiatry & Neurology
- Addiction Psychiatry
About STEPHEN RICHMOND
This page provides the complete NPI Profile along with additional information for Stephen Richmond, a provider established in Menlo Park, California with a medical specialization in Psychiatry & Neurology, focusing in addiction psychiatry . The healthcare provider is registered in the NPI registry with number 1013051143 assigned on February 2007. The practitioner's primary taxonomy code is 2084P0802X with license number G71303 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1013051143
- Provider Name
- DR. STEPHEN HOPKINS RICHMOND M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1220 UNIVERSITY DR SUITE 101 MENLO PARK, CA 94025
- Location Phone
- (650) 599-3700
- Mailing Address
- 1220 UNIVERSITY DR SUITE 101 MENLO PARK, CA 94025
- Mailing Phone
- (650) 599-3700
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 02-20-2007
- 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 Addiction Psychiatry
- Taxonomy Code
- 2084P0802X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- G71303
- License State
- CA
- Taxonomy Description
- Addiction Psychiatry is a subspecialty of psychiatry that focuses on evaluation and treatment of individuals with alcohol, drug, or other substance-related disorders, and of individuals with dual diagnosis of substance-related and other psychiatric 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 | 2084P0800X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | G71303 (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 1013051143, 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 47. The final step is to find the difference between that total and the next multiple of ten (50 - 47 = 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 47 is 50. 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.
MENLO PARK, CA 94025
MENLO PARK, CA 94025
MENLO PARK, CA 94025
MENLO PARK, CA 94025
MENLO PARK, CA 94025
MENLO PARK, CA 94025
MENLO PARK, CA 94025
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1013051143, enumerated as an "individual" on February 20, 2007.
The provider is located at 1220 UNIVERSITY DR SUITE 101 MENLO PARK, CA 94025 and the phone number is (650) 599-3700.
Psychiatry & Neurology with taxonomy code 2084P0802X and a focus in Addiction Psychiatry.
