DR. WALTER SAM MAZEN JR. M.D.
NPI 1649292624
Obstetrics & Gynecology - Obstetrics in Chico, CA

NPI Status: Active since July 25, 2006

Contact Information

1665 ESPLANADE
CHICO, CA
ZIP 95926
Phone: (530) 895-0423
Fax: (530) 895-1872

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Insurance Plans Accepted
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Obstetrics & Gynecology
Obstetrics

About WALTER MAZEN

This page provides the complete NPI Profile along with additional information for Walter Mazen, a women's health care provider established in Chico, California with a medical specialization in Obstetrics & Gynecology, focusing in obstetrics . The healthcare provider is registered in the NPI registry with number 1649292624 assigned on July 2006. The practitioner's primary taxonomy code is 207VX0000X with license number G45960 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI: 1649292624
Provider Name: DR. WALTER SAM MAZEN JR. M.D.
Gender: Male
Entity Type: Individual
Location Address: 1665 ESPLANADE CHICO, CA 95926
Location Phone: (530) 895-0423
Location Fax: (530) 895-1872
Mailing Address: 1665 ESPLANADE CHICO, CA 95926
Mailing Phone: (530) 895-0423
Mailing Fax: (530) 895-1872
Is Sole Proprietor?: No
Enumeration Date: 07-25-2006
Last Update Date: 03-07-2023
Code Navigator

Women's health care providers like Walter Mazen treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.

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: Obstetrics & Gynecology Obstetrics
Taxonomy Code: 207VX0000X
Type: Allopathic & Osteopathic Physicians
License No.: G45960
License State: CA
Taxonomy Description: A physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions. Source: National Uniform Claim Committee

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	207VG0400X	Allopathic & Osteopathic Physicians	Obstetrics & Gynecology Gynecology	G45960 (CA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Medicare

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Medicaid

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier	Type / Code	Identifier State	Identifier Issuer
GROO43570	MEDICAID (05)	CA
G45960	OTHER (01)	CA	CALIFORNIA STATE LICENSE

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 1649292624, we treat the final digit (4) 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 76. The final step is to find the difference between that total and the next multiple of ten (80 - 76 = 4).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 4

Pos 8

Unchanged

Pos 9

Doubled → 4

Check

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 4 → 8 2 → 4 2 → 4 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 4 + 9 + 4 + 6 + 4 + 24 = 76

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

The next multiple of ten after 76 is 80. The difference is the calculated check digit.

80 - 76 = 4

This NPI is valid

The calculated check digit is 4, which matches the last digit of 1649292624.