DR. SHARON WILLIAMS M.D.
NPI 1457772949
Allergy & Immunology in North Tustin, CA
NPI Status: Active since December 30, 2013
Contact Information
12231 NEWPORT AVE
NORTH TUSTIN, CA
ZIP 92705
Phone: (949) 519-2311
Fax: (949) 276-3209
- Individual
- Female
- Allergy & Immunology
About SHARON WILLIAMS
This page provides the complete NPI Profile along with additional information for Sharon Williams, a provider established in North Tustin, California with a medical specialization in Allergy & Immunology. The healthcare provider is registered in the NPI registry with number 1457772949 assigned on December 2013. The practitioner's primary taxonomy code is 207K00000X with license number A113432 (CA). The provider is registered as an individual and her NPI record was last updated 3 years ago.
- NPI
- 1457772949
- Provider Name
- DR. SHARON WILLIAMS M.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 12231 NEWPORT AVE NORTH TUSTIN, CA 92705
- Location Phone
- (949) 519-2311
- Location Fax
- (949) 276-3209
- Mailing Address
- PO BOX 14107 IRVINE, CA 92623
- Mailing Phone
- (949) 519-2311
- Mailing Fax
- (949) 276-3209
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-30-2013
- Last Update Date
- 03-07-2023
- Code Navigator
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
Allergy & Immunology
- Taxonomy Code
- 207K00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A113432
- License State
- CA
- Taxonomy Description
- An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
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 | 207KA0200X | Allopathic & Osteopathic Physicians | Allergy & Immunology | A133432 (CA) |
| 2 | 207KI0005X | Allopathic & Osteopathic Physicians | Allergy & Immunology | A133432 (CA) |
| 3 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | A133432 (CA) |
| 4 | 207RA0201X | Allopathic & Osteopathic Physicians | Internal Medicine | A133432 (CA) |
| 5 | 2080P0201X | Allopathic & Osteopathic Physicians | Pediatrics | A133432 (CA) |
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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 1457772949, 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 71 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 5 providers are registered at the same or a nearby location.
NORTH TUSTIN, CA 92705
NORTH TUSTIN, CA 92705
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1457772949, enumerated as an "individual" on December 30, 2013.
The provider is located at 12231 NEWPORT AVE NORTH TUSTIN, CA 92705 and the phone number is (949) 519-2311.
Allergy & Immunology with taxonomy code 207K00000X.
