DR. RAJAS TIPNIS MD
NPI 1518840099
Otolaryngology - Pediatric Otolaryngology in San Francisco, CA
NPI Status: Active since July 30, 2025
Contact Information
1975 4TH ST FL 5
SAN FRANCISCO, CA
ZIP 94143
Phone: (877) 822-4453
Fax: (415) 353-2603
- Individual
- Male
- Otolaryngology
- Pediatric Otolaryngology
About RAJAS TIPNIS
This page provides the complete NPI Profile along with additional information for Rajas Tipnis, a provider established in San Francisco, California with a medical specialization in Otolaryngology, focusing in pediatric otolaryngology . The healthcare provider is registered in the NPI registry with number 1518840099 assigned on July 2025. The practitioner's primary taxonomy code is 207YP0228X with license number A201465 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1518840099
- Provider Name
- DR. RAJAS TIPNIS MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1975 4TH ST FL 5 SAN FRANCISCO, CA 94143
- Location Phone
- (877) 822-4453
- Location Fax
- (415) 353-2603
- Mailing Address
- 555 BRYANT ST APT 237 SAN FRANCISCO, CA 94107
- Mailing Phone
- (204) 396-3335
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-30-2025
- Last Update Date
- 07-30-2025
- 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
Otolaryngology Pediatric Otolaryngology
- Taxonomy Code
- 207YP0228X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A201465
- License State
- CA
- Taxonomy Description
- A pediatric otolaryngologist has special expertise in the management of infants and children with disorders that include congenital and acquired conditions involving the aerodigestive tract, nose and paranasal sinuses, the ear and other areas of the head and neck. The pediatric otolaryngologist has special skills in the diagnosis, treatment, and management of childhood disorders of voice, speech, language and hearing.
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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 1518840099, 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.
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 61 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1518840099, enumerated as an "individual" on July 30, 2025.
The provider is located at 1975 4TH ST FL 5 SAN FRANCISCO, CA 94143 and the phone number is (877) 822-4453.
Otolaryngology with taxonomy code 207YP0228X and a focus in Pediatric Otolaryngology.
