LORENA LIZETTE MARQUEZ
NPI 1558905497
Counselor in Oakland, CA

NPI Status: Active since November 04, 2019

Contact Information

390 40TH ST
OAKLAND, CA
ZIP 94609
Phone: (510) 613-0330

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  • Individual
  • Female
  • Counselor

About LORENA MARQUEZ

This page provides the complete NPI Profile along with additional information for Lorena Marquez, a provider established in Oakland, California with a medical specialization in Counselor. The healthcare provider is registered in the NPI registry with number 1558905497 assigned on November 2019. The practitioner's primary taxonomy code is 101Y00000X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1558905497
Provider Name
LORENA LIZETTE MARQUEZ
Gender
Female
Entity Type
Individual
Location Address
390 40TH ST OAKLAND, CA 94609
Location Phone
(510) 613-0330
Mailing Address
390 40TH ST OAKLAND, CA 94609
Mailing Phone
(510) 613-0330
Is Sole Proprietor?
No
Enumeration Date
11-04-2019
Last Update Date
05-29-2025
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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

Counselor

Taxonomy Code
101Y00000X
Type
Behavioral Health & Social Service Providers
Taxonomy Description
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

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)
1106H00000XBehavioral Health & Social Service Providers

Marriage & Family Therapist

139738 (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 1558905497, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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
5
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
8
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
4
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
7
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 5 → 10 → 1 9 → 18 → 9 5 → 10 → 1 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 0 + 8 + 1 + 8 + 0 + 1 + 0 + 4 + 1 + 8 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1558905497.

Other Providers at the Same Location


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

Marriage & Family Therapist
390 40TH ST
OAKLAND, CA 94609
Marriage & Family Therapist
390 40TH ST
OAKLAND, CA 94609
Social Worker (Clinical)
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609
Registered Nurse
390 40TH ST
OAKLAND, CA 94609
Marriage & Family Therapist
390 40TH ST
OAKLAND, CA 94609
Registered Nurse (Psychiatric/Mental Health, Child & Adolescent)
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609
Social Worker (Clinical)
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609
Counselor (Addiction (Substance Use Disorder))
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609
Counselor (Addiction (Substance Use Disorder))
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609
Counselor (Addiction (Substance Use Disorder))
390 40TH ST
OAKLAND, CA 94609
Counselor (Mental Health)
390 40TH ST
OAKLAND, CA 94609

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1558905497, enumerated as an "individual" on November 04, 2019.

The provider is located at 390 40TH ST OAKLAND, CA 94609 and the phone number is (510) 613-0330.

Counselor with taxonomy code 101Y00000X.