Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 30 days.

SERGEY POTAPOV
NPI 1386563559
Registered Nurse - Addiction (Substance Use Disorder) in Alhambra, CA

Active since July 13, 2026
1000 S FREMONT AVE BLDG A-9, ALHAMBRA, CA 91803(626) 299-3541 Get Directions Write a Review

NPPES record added: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Male
  • Registered Nurse
  • Addiction (Substance Use Disorder)

About SERGEY POTAPOV

This page provides the complete NPI Profile along with additional information for Sergey Potapov, a provider established in Alhambra, California with a medical specialization in Registered Nurse, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1386563559 assigned on July 2026. The practitioner's primary taxonomy code is 163WA0400X with license number 95039450 (CA). The provider is registered as an individual and his NPI record was last updated July 2026.

NPI
1386563559
Provider Name
SERGEY POTAPOV
Gender
Male
Entity Type
Individual
Location Address
1000 S FREMONT AVE BLDG A-9 ALHAMBRA, CA 91803
Location Phone
(626) 299-3541
Mailing Address
1000 S FREMONT AVE BLDG A-9 ALHAMBRA, CA 91803
Mailing Phone
(626) 299-3541
Is Sole Proprietor?
No
Enumeration Date
07-13-2026
Last Update Date
07-13-2026
Code Navigator

A registered nurse (RN) like Sergey Potapov 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.

Addiction nurses - this registered nurse specializes in addiction medicine assisting patients in overcoming dependencies on alcohol, drugs, and other substances.

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 Addiction (Substance Use Disorder)

Taxonomy Code
163WA0400X
Type
Nursing Service Providers
License No.
95039450
License State
CA

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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 1386563559, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
6
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
6
Unchanged
Pos 7
3
Doubled → 6
Pos 8
5
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
9
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 8 → 16 → 7 5 → 10 → 1 3 → 6 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 1 + 6 + 6 + 1 + 0 + 6 + 6 + 5 + 1 + 0 + 24 = 61

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1386563559.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Pediatrics
1000 S FREMONT AVE BLDG A-9
ALHAMBRA, CA 91803
Psychologist (Clinical)
1000 S FREMONT AVE BLDG A-9
ALHAMBRA, CA 91803

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1386563559, enumerated as an "individual" on July 13, 2026.

The provider is located at 1000 S FREMONT AVE BLDG A-9 ALHAMBRA, CA 91803 and the phone number is (626) 299-3541.

Registered Nurse with taxonomy code 163WA0400X and a focus in Addiction (Substance Use Disorder).