NIHON BAY CLINIC
NPI 1770540858
Family Medicine in San Mateo, CA

NPI Status: Active since May 01, 2006

Contact Information

40 N SAN MATEO DR
NIHON BAY CLINIC
SAN MATEO, CA
ZIP 94401
Phone: (650) 558-0337
Fax: (650) 558-9364

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  • Organization
  • Family Medicine
  • CLIA Number: 05D1035320
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 12-28-2026

About NIHON BAY CLINIC

This page provides the complete NPI Profile along with additional information for Nihon Bay Clinic, a primary care provider established in San Mateo, California operating as a Family Medicine. The healthcare provider is registered in the NPI registry with number 1770540858 assigned on May 2006. The practitioner's primary taxonomy code is 207Q00000X. The provider is registered as an organization and their NPI record was last updated 16 years ago. Nihon Bay Clinic operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's is doing business as Nihon Bay Clinic. The authorized official of this NPI record is Dr. Masayasu Kihira Md Phd (Family Practitioner Medical Directo)

NPI
1770540858
Provider Legal Name
MASAYASU KIHIRA MD A PROFESSIONAL CORPORATION
Other Organization Name
NIHON BAY CLINIC
Other Name Type
Doing Business As (3)
Entity Type
Organization
Location Address
40 N SAN MATEO DR NIHON BAY CLINIC SAN MATEO, CA 94401
Location Phone
(650) 558-0337
Location Fax
(650) 558-9364
Mailing Address
40 N SAN MATEO DR NIHON BAY CLINIC SAN MATEO, CA 94401
Mailing Phone
(650) 558-0337
Mailing Fax
(650) 558-9364
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
05-01-2006
Last Update Date
08-24-2010
Code Navigator

A primary care provider (PCP) like Nihon Bay Clinic 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

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

Family Medicine

Taxonomy Code
207Q00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

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)
1208000000XAllopathic & Osteopathic Physicians

Pediatrics

 

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.

Insurance Plans Accepted

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

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

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.

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

DR. MASAYASU KIHIRA MD PHD

Authorized Official Title
FAMILY PRACTITIONER MEDICAL DIRECTO
Authorized Official Phone
(650) 558-0337

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
G18602MEDICARE UPIN (02)CA 
ZZZ30019ZMEDICARE PIN (08)CA 

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D1035320
Facility Type
Physician Office
Certificate Effective Date
December 29, 2024
Certificate Expiration Date
December 28, 2026
Laboratory Director
MASAYASU KIHIRA MD
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Nihon Bay Clinic to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

Reviews for NIHON BAY CLINIC

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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 1770540858, 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
7
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
0
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
4
Unchanged
Pos 7
0
Doubled → 0
Pos 8
8
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 7 → 14 → 5 5 → 10 → 1 0 → 0 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 4 + 0 + 1 + 0 + 4 + 0 + 8 + 1 + 0 + 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 1770540858.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Pediatrics
40 N SAN MATEO DR, NIHON BAY CLINIC
SAN MATEO, CA 94401
Family Medicine
40 N SAN MATEO DR, NIHON BAY CLINIC
SAN MATEO, CA 94401
Family Medicine
40 N SAN MATEO DR
SAN MATEO, CA 94401

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1770540858, enumerated as an "organization" on May 01, 2006.

The provider is located at 40 N SAN MATEO DR NIHON BAY CLINIC SAN MATEO, CA 94401 and the phone number is (650) 558-0337.

Family Medicine with taxonomy code 207Q00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.