MARIAN MARTHA DEPATILLO TAN PHARMD
NPI 1609753334
Student in an Organized Health Care Education/Training Program in San Francisco, CA
NPI Status: Active since August 15, 2025
Contact Information
1525 SILVER AVE
SAN FRANCISCO, CA
ZIP 94134
Phone: (628) 271-7312
- Individual
- Female
- Student in an Organized Health Care Educ...
About MARIAN MARTHA TAN
This page provides the complete NPI Profile along with additional information for Marian Martha Tan, a primary care provider established in San Francisco, California with a medical specialization in Student In An Organized Health Care Education/training Program. The healthcare provider is registered in the NPI registry with number 1609753334 assigned on August 2025. The practitioner's primary taxonomy code is 390200000X with license number 49128 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.
- NPI
- 1609753334
- Provider Name
- MARIAN MARTHA DEPATILLO TAN PHARMD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1525 SILVER AVE SAN FRANCISCO, CA 94134
- Location Phone
- (628) 271-7312
- Mailing Address
- 2026 43RD AVE SAN FRANCISCO, CA 94116
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-15-2025
- Last Update Date
- 08-15-2025
- Code Navigator
A primary care provider (PCP) like Marian Martha Tan 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
Student in an Organized Health Care Education/Training Program
- Taxonomy Code
- 390200000X
- Type
- Student, Health Care
- License No.
- 49128
- License State
- CA
- Taxonomy Description
- An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
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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 1609753334, 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 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.
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 66 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
SAN FRANCISCO, CA 94134
SAN FRANCISCO, CA 94134
SAN FRANCISCO, CA 94134
SAN FRANCISCO, CA 94134
SAN FRANCISCO, CA 94134
SAN FRANCISCO, CA 94134
SAN FRANCISCO, CA 94134
SAN FRANCISCO, CA 94134
SAN FRANCISCO, CA 94134
SAN FRANCISCO, CA 94134
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1609753334, enumerated as an "individual" on August 15, 2025.
The provider is located at 1525 SILVER AVE SAN FRANCISCO, CA 94134 and the phone number is (628) 271-7312.
Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
