ALLISON WILSON MD
NPI 1902499544
Otolaryngology in San Francisco, CA

NPI Status: Active since February 15, 2021

Contact Information

1825 4TH ST FL 5
SAN FRANCISCO, CA
ZIP 94143
Phone: (415) 885-7528

Recently Updated NPI Information
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.

Table of Contents

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Otolaryngology

About ALLISON WILSON

This page provides the complete NPI Profile along with additional information for Allison Wilson, a provider established in San Francisco, California with a medical specialization in Otolaryngology. The healthcare provider is registered in the NPI registry with number 1902499544 assigned on February 2021. The practitioner's primary taxonomy code is 207Y00000X with license number A209327 (CA). The provider is registered as an individual and her NPI record was last updated June 2026.

NPI: 1902499544
Provider Name: ALLISON WILSON MD
Gender: Female
Entity Type: Individual
Location Address: 1825 4TH ST FL 5 SAN FRANCISCO, CA 94143
Location Phone: (415) 885-7528
Mailing Address: 9040 JACKSON AVE TACOMA, WA 98431
Mailing Phone: (253) 968-1420
Is Sole Proprietor?: No
Enumeration Date: 02-15-2021
Last Update Date: 06-06-2026
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Location Map

Secondary Locations

9040 Jackson Ave
Tacoma, WA 98431
(253) 968-1420

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.: A209327
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.

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	208D00000X	Allopathic & Osteopathic Physicians	General Practice	35272 (NE)

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 1902499544, 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 → 0

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 8

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 0 → 0 4 → 8 9 → 18 → 9 4 → 8