JOHN ERIC SOMBRA
NPI 1780521401
Registered Nurse - Psychiatric/Mental Health in Palo Alto, CA
NPI Status: Active since April 30, 2026
Contact Information
652 FOREST AVE
PALO ALTO, CA
ZIP 94301
Phone: (650) 323-1401
Fax: (408) 642-6052
- Individual
- Male
- Registered Nurse
- Psychiatric/Mental Health
About JOHN ERIC SOMBRA
This page provides the complete NPI Profile along with additional information for John Eric Sombra, a provider established in Palo Alto, California with a medical specialization in Registered Nurse, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1780521401 assigned on April 2026. The practitioner's primary taxonomy code is 163WP0808X with license number 95457328 (CA). The provider is registered as an individual and his NPI record was last updated May 2026.
- NPI
- 1780521401
- Provider Name
- JOHN ERIC SOMBRA
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 652 FOREST AVE PALO ALTO, CA 94301
- Location Phone
- (650) 323-1401
- Location Fax
- (408) 642-6052
- Mailing Address
- 1922 THE ALAMEDA STE 316 SAN JOSE, CA 95126
- Mailing Phone
- (408) 261-7777
- Mailing Fax
- (408) 642-6052
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-30-2026
- Last Update Date
- 05-01-2026
- Code Navigator
A registered nurse (RN) like John Eric Sombra coordinates and provides patient care and educates patients about various health conditions. Registered nurses give advice and emotional support to patients and their families. The typical duties of a registered nurse include: assessing patient conditions, record medical histories and symptoms, observe patients and record the observations, administer medicines and treatments, consult and collaborate with doctors, operate and monitor medical equipment, teach patients and families how to manage injuries or illnesses, etc.
Registered nurses typically work as part of a team with physicians and other healthcare professionals. In some medical teams registered nurses supervise nursing assistants, licensed practical nurses, and home health aides.
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
Registered Nurse Psychiatric/Mental Health
- Taxonomy Code
- 163WP0808X
- Type
- Nursing Service Providers
- License No.
- 95457328
- License State
- 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 1780521401, 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.
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 49 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.
PALO ALTO, CA 94301
PALO ALTO, CA 94301
PALO ALTO, CA 94301
PALO ALTO, CA 94301
PALO ALTO, CA 94301
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1780521401, enumerated as an "individual" on April 30, 2026.
The provider is located at 652 FOREST AVE PALO ALTO, CA 94301 and the phone number is (650) 323-1401.
Registered Nurse with taxonomy code 163WP0808X and a focus in Psychiatric/Mental Health.
