MARILYN JULIANA DEMESA
NPI 1619645355
Student in an Organized Health Care Education/Training Program in Richmond, CA

NPI Status: Active since August 30, 2021

Contact Information

205 39TH ST
RICHMOND, CA
ZIP 94805
Phone: (510) 412-5930
Fax: (510) 412-0567

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  • Individual
  • Female
  • Student in an Organized Health Care Educ...

About MARILYN DEMESA

This page provides the complete NPI Profile along with additional information for Marilyn Demesa, a primary care provider established in Richmond, California with a medical specialization in Student In An Organized Health Care Education/training Program. The healthcare provider is registered in the NPI registry with number 1619645355 assigned on August 2021. The practitioner's primary taxonomy code is 390200000X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1619645355
Provider Name
MARILYN JULIANA DEMESA
Gender
Female
Entity Type
Individual
Location Address
205 39TH ST RICHMOND, CA 94805
Location Phone
(510) 412-5930
Location Fax
(510) 412-0567
Mailing Address
4892 SAN PABLO DAM RD EL SOBRANTE, CA 94803
Is Sole Proprietor?
No
Enumeration Date
08-30-2021
Last Update Date
06-27-2025
Code Navigator

A primary care provider (PCP) like Marilyn Demesa sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

Location Map

Secondary Locations

  • 4892 San Pablo Dam Rd
    El Sobrante, CA 94803
    (510) 237-3990

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

Student in an Organized Health Care Education/Training Program

Taxonomy Code
390200000X
Type
Student, Health Care
Taxonomy Description
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

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)
1101YM0800XBehavioral Health & Social Service Providers

Counselor
Mental Health

 

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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 1619645355, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
6
Unchanged
Pos 3
1
Doubled → 2
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
4
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
5
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 1 → 2 6 → 12 → 3 5 → 10 → 1 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 1 + 2 + 4 + 1 + 0 + 3 + 1 + 0 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1619645355.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Counselor
205 39TH ST
RICHMOND, CA 94805
Counselor (Mental Health)
205 39TH ST
RICHMOND, CA 94805
Social Worker (Clinical)
205 39TH ST
RICHMOND, CA 94805
Social Worker
205 39TH ST
RICHMOND, CA 94805
Counselor (Mental Health)
205 39TH ST
RICHMOND, CA 94805
Counselor (Mental Health)
205 39TH ST
RICHMOND, CA 94805
Counselor
205 39TH ST
RICHMOND, CA 94805
Counselor (Mental Health)
205 39TH ST
RICHMOND, CA 94805
Counselor (Mental Health)
205 39TH ST
RICHMOND, CA 94805
Counselor (Mental Health)
205 39TH ST
RICHMOND, CA 94805
Social Worker (Clinical)
205 39TH ST
RICHMOND, CA 94805
Counselor
205 39TH ST
RICHMOND, CA 94805
Social Worker (Clinical)
205 39TH ST
RICHMOND, CA 94805
Counselor (Mental Health)
205 39TH ST
RICHMOND, CA 94805
Student in an Organized Health Care Education/Training Program
205 39TH ST
RICHMOND, CA 94805
Social Worker (Clinical)
205 39TH ST
RICHMOND, CA 94805
Social Worker (Clinical)
205 39TH ST
RICHMOND, CA 94805
Social Worker
205 39TH ST
RICHMOND, CA 94805
Social Worker (Clinical)
205 39TH ST
RICHMOND, CA 94805
Counselor (Mental Health)
205 39TH ST
RICHMOND, CA 94805

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619645355, enumerated as an "individual" on August 30, 2021.

The provider is located at 205 39TH ST RICHMOND, CA 94805 and the phone number is (510) 412-5930.

Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.