NANCY POON NP
NPI 1144824475
Nurse Practitioner - Family in San Francisco, CA

NPI Status: Active since November 27, 2020

Contact Information

499 ILLINOIS ST FL 6
SAN FRANCISCO, CA
ZIP 94158
Phone: (415) 353-7475

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  • Individual
  • Female
  • Nurse Practitioner
  • Family

About NANCY POON

This page provides the complete NPI Profile along with additional information for Nancy Poon, a provider established in San Francisco, California with a medical specialization in Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1144824475 assigned on November 2020. The practitioner's primary taxonomy code is 363LF0000X with license number 95016099 (CA). The provider is registered as an individual and her NPI record was last updated May 2026.

NPI
1144824475
Provider Name
NANCY POON NP
Gender
Female
Entity Type
Individual
Location Address
499 ILLINOIS ST FL 6 SAN FRANCISCO, CA 94158
Location Phone
(415) 353-7475
Mailing Address
150 SPEAR ST STE 500 SAN FRANCISCO, CA 94105
Mailing Phone
(415) 603-6999
Is Sole Proprietor?
No
Enumeration Date
11-27-2020
Last Update Date
05-18-2026
Code Navigator

A nurse practitioner (NP) like Nancy Poon is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

Location Map

Secondary Locations

  • 150 Spear St Ste 500
    San Francisco, CA 94105
    (415) 603-6999

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

Nurse Practitioner Family

Taxonomy Code
363LF0000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
95016099
License State
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 1144824475, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
1
Unchanged
Pos 3
4
Doubled → 8
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
2
Unchanged
Pos 7
4
Doubled → 8
Pos 8
4
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
5
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 4 → 8 8 → 16 → 7 4 → 8 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 8 + 4 + 1 + 6 + 2 + 8 + 4 + 1 + 4 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1144824475.

Other Providers at the Same Location


The following 16 providers are registered at the same or a nearby location.

Obstetrics & Gynecology (Reproductive Endocrinology)
499 ILLINOIS ST FL 6, UCSF CENTER FOR REPRODUCTIVE HEALTH
SAN FRANCISCO, CA 94158
Psychologist (Clinical)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Genetic Counselor, MS
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Obstetrics & Gynecology
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Obstetrics & Gynecology (Reproductive Endocrinology)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Nurse Practitioner (Family)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Obstetrics & Gynecology (Reproductive Endocrinology)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Obstetrics & Gynecology (Reproductive Endocrinology)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Obstetrics & Gynecology (Reproductive Endocrinology)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Obstetrics & Gynecology
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Psychologist (Clinical)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Obstetrics & Gynecology (Reproductive Endocrinology)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Nurse Practitioner (Family)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Obstetrics & Gynecology (Reproductive Endocrinology)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Nurse Practitioner (Family)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158
Nurse Practitioner (Women's Health)
499 ILLINOIS ST FL 6
SAN FRANCISCO, CA 94158

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1144824475, enumerated as an "individual" on November 27, 2020.

The provider is located at 499 ILLINOIS ST FL 6 SAN FRANCISCO, CA 94158 and the phone number is (415) 353-7475.

Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.