COUNTY OF SAN MATEO
NPI 1295605178
Dentist in San Mateo, CA

NPI Status: Active since November 06, 2025

Contact Information

222 W 39TH AVE
SAN MATEO, CA
ZIP 94403
Phone: (650) 573-2222

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  • Organization
  • Dentist

About COUNTY OF SAN MATEO

This page provides the complete NPI Profile along with additional information for County Of San Mateo, a provider established in San Mateo, California operating as a Dentist. The healthcare provider is registered in the NPI registry with number 1295605178 assigned on November 2025. The practitioner's primary taxonomy code is 122300000X. The provider is registered as an organization and their NPI record was last updated one year ago. County Of San Mateo operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Jennifer Papa (Chief Financial Officer)

NPI
1295605178
Provider Name
COUNTY OF SAN MATEO
Entity Type
Organization
Location Address
222 W 39TH AVE SAN MATEO, CA 94403
Location Phone
(650) 573-2222
Mailing Address
801 GATEWAY BLVD STE 200 SOUTH SAN FRANCISCO, CA 94080
Mailing Phone
(650) 421-6557
Is Sole Proprietor?
No
Is Organization Subpart?
Yes
Enumeration Date
11-06-2025
Last Update Date
11-06-2025
Code Navigator

A dentist like County Of San Mateo is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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

Dentist

Taxonomy Code
122300000X
Type
Dental Providers
Taxonomy Description
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.

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)
11223G0001XDental Providers

Dentist
General Practice

 
21223P0221XDental Providers

Dentist
Pediatric Dentistry

 
31223S0112XDental Providers

Dentist
Oral and Maxillofacial Surgery

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

JENNIFER PAPA

Authorized Official Title
CHIEF FINANCIAL OFFICER
Authorized Official Phone
(650) 573-2613

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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 1295605178, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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
2
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
5
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
0
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
8
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 9 → 18 → 9 6 → 12 → 3 5 → 10 → 1 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 8 + 5 + 1 + 2 + 0 + 1 + 0 + 1 + 1 + 4 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1295605178.

Other Providers at the Same Location


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

Nurse Practitioner (Women's Health)
222 W 39TH AVE
SAN MATEO, CA 94403
Emergency Medicine
222 W 39TH AVE
SAN MATEO, CA 94403
Registered Nurse
222 W 39TH AVE
SAN MATEO, CA 94403
Pediatrics
222 W 39TH AVE
SAN MATEO, CA 94403
Physician Assistant
222 W 39TH AVE
SAN MATEO, CA 94403
Physician Assistant
222 W 39TH AVE
SAN MATEO, CA 94403
Emergency Medicine
222 W 39TH AVE
SAN MATEO, CA 94403
Emergency Medicine
222 W 39TH AVE
SAN MATEO, CA 94403
Emergency Medicine
222 W 39TH AVE
SAN MATEO, CA 94403
Registered Nurse
222 W 39TH AVE
SAN MATEO, CA 94403
Internal Medicine
222 W 39TH AVE
SAN MATEO, CA 94403
Internal Medicine (Cardiovascular Disease)
222 W 39TH AVE
SAN MATEO, CA 94403
Internal Medicine (Infectious Disease)
222 W 39TH AVE
SAN MATEO, CA 94403
Clinic/Center (Multi-Specialty)
222 W 39TH AVE
SAN MATEO, CA 94403
Family Medicine
222 W 39TH AVE
SAN MATEO, CA 94403
Clinic/Center (Multi-Specialty)
222 W 39TH AVE
SAN MATEO, CA 94403
Internal Medicine
222 W 39TH AVE
SAN MATEO, CA 94403
Psychiatric Unit
222 W 39TH AVE
SAN MATEO, CA 94403
Nurse Practitioner
222 W 39TH AVE
SAN MATEO, CA 94403
Pediatrics
222 W 39TH AVE
SAN MATEO, CA 94403

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1295605178, enumerated as an "organization" on November 06, 2025.

The provider is located at 222 W 39TH AVE SAN MATEO, CA 94403 and the phone number is (650) 573-2222.

Dentist with taxonomy code 122300000X.