HELEN BAI
NPI 1508099029
Otolaryngology in Martinez, CA

NPI Status: Active since September 01, 2009

Contact Information

150 MUIR RD
MARTINEZ, CA
ZIP 94553
Phone: (925) 372-2000

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  • Individual
  • Female
  • Otolaryngology

About HELEN BAI

This page provides the complete NPI Profile along with additional information for Helen Bai, a provider established in Martinez, California with a medical specialization in Otolaryngology. The healthcare provider is registered in the NPI registry with number 1508099029 assigned on September 2009. The practitioner's primary taxonomy code is 207Y00000X with license number A123028 (CA). The provider is registered as an individual and her NPI record was last updated 6 years ago.

NPI
1508099029
Provider Name
HELEN BAI
Gender
Female
Entity Type
Individual
Location Address
150 MUIR RD MARTINEZ, CA 94553
Location Phone
(925) 372-2000
Mailing Address
150 MUIR RD MARTINEZ, CA 94553
Mailing Phone
(925) 372-2719
Is Sole Proprietor?
No
Enumeration Date
09-01-2009
Last Update Date
10-31-2020
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Location Map

Secondary Locations

  • 45 Castro St Ste 325
    San Francisco, CA 94114
    (415) 552-4565

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

Otolaryngology

Taxonomy Code
207Y00000X
Type
Allopathic & Osteopathic Physicians
License No.
A123028
License State
CA
Taxonomy Description
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

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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 1508099029, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 0 + 9 + 1 + 8 + 0 + 4 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1508099029.

Other Providers at the Same Location


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

Psychiatry & Neurology (Psychiatry)
150 MUIR RD
MARTINEZ, CA 94553
Pathology (Anatomic Pathology & Clinical Pathology)
150 MUIR RD
MARTINEZ, CA 94553
Nurse Practitioner (Adult Health)
150 MUIR RD
MARTINEZ, CA 94553
Internal Medicine (Nephrology)
150 MUIR RD
MARTINEZ, CA 94553
Internal Medicine
150 MUIR RD
MARTINEZ, CA 94553
Specialist
150 MUIR RD, 112A
MARTINEZ, CA 94553
Specialist
150 MUIR RD, VANCSC - 127
MARTINEZ, CA 94553
Internal Medicine (Cardiovascular Disease)
150 MUIR RD
MARTINEZ, CA 94553
Radiology (Diagnostic Radiology)
150 MUIR RD, RADIOLOGY - 114A
MARTINEZ, CA 94553
Ophthalmology
150 MUIR RD, VETERANS AFFAIRS (112)
MARTINEZ, CA 94553
Internal Medicine
150 MUIR RD
MARTINEZ, CA 94553
Pharmacist (Pharmacotherapy)
150 MUIR RD, 119
MARTINEZ, CA 94553
Nurse Practitioner (Adult Health)
150 MUIR RD, VETERANS AFFAIRS
MARTINEZ, CA 94553
Anesthesiology (Pain Medicine)
150 MUIR RD, 112/A
MARTINEZ, CA 94553
Nurse Practitioner (Family)
150 MUIR RD
MARTINEZ, CA 94553
Internal Medicine (Endocrinology, Diabetes & Metabolism)
150 MUIR RD, VANCHCS MEDICAL SERVICE (612/111)
MARTINEZ, CA 94553
Nurse Practitioner (Family)
150 MUIR RD
MARTINEZ, CA 94553
Specialist
150 MUIR RD
MARTINEZ, CA 94553
Internal Medicine
150 MUIR RD
MARTINEZ, CA 94553
Physician Assistant (Medical)
150 MUIR RD, DEPT OF VETERANS AFFAIRS
MARTINEZ, CA 94553

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508099029, enumerated as an "individual" on September 01, 2009.

The provider is located at 150 MUIR RD MARTINEZ, CA 94553 and the phone number is (925) 372-2000.

Otolaryngology with taxonomy code 207Y00000X.