MS. MARILYN P WILLIAMS MS, RN
NPI 1497972822
Registered Nurse - Gerontology in San Francisco, CA

NPI Status: Active since April 19, 2007

Contact Information

2425 GEARY BLVD
SAN FRANCISCO, CA
ZIP 94115
Phone: (415) 883-4486
Fax: (415) 833-3001

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  • Individual
  • Female
  • Registered Nurse
  • Gerontology

About MARILYN WILLIAMS

This page provides the complete NPI Profile along with additional information for Marilyn Williams, a provider established in San Francisco, California with a medical specialization in Registered Nurse, focusing in gerontology . The healthcare provider is registered in the NPI registry with number 1497972822 assigned on April 2007. The practitioner's primary taxonomy code is 163WG0600X with license number 189302 (CA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1497972822
Provider Name
MS. MARILYN P WILLIAMS MS, RN
Gender
Female
Entity Type
Individual
Location Address
2425 GEARY BLVD SAN FRANCISCO, CA 94115
Location Phone
(415) 883-4486
Location Fax
(415) 833-3001
Mailing Address
2425 GEARY BLVD SAN FRANCISCO, CA 94115
Mailing Phone
(415) 883-4486
Mailing Fax
(415) 833-3001
Is Sole Proprietor?
No
Enumeration Date
04-19-2007
Last Update Date
07-08-2007
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A registered nurse (RN) like Marilyn Williams coordinates and provides patient care and educates patients about various health conditions. Registered nurses give advice and emotional support to patients and their families. The typical duties of a registered nurse include: assessing patient conditions, record medical histories and symptoms, observe patients and record the observations, administer medicines and treatments, consult and collaborate with doctors, operate and monitor medical equipment, teach patients and families how to manage injuries or illnesses, etc.

Registered nurses typically work as part of a team with physicians and other healthcare professionals. In some medical teams registered nurses supervise nursing assistants, licensed practical nurses, and home health aides.

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

Registered Nurse Gerontology

Taxonomy Code
163WG0600X
Type
Nursing Service Providers
License No.
189302
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 1497972822, we treat the final digit (2) 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 78. The final step is to find the difference between that total and the next multiple of ten (80 - 78 = 2).

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
4
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
7
Unchanged
Pos 7
2
Doubled → 4
Pos 8
8
Unchanged
Pos 9
2
Doubled → 4
Check
2
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 9 → 18 → 9 9 → 18 → 9 2 → 4 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 1 + 8 + 7 + 1 + 8 + 7 + 4 + 8 + 4 + 24 = 78

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

The next multiple of ten after 78 is 80. The difference is the calculated check digit.

80 - 78 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1497972822.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Nurse Practitioner (Family)
2425 GEARY BLVD, PERIOPERATIVE MEDICINE CENTER - 4404A
SAN FRANCISCO, CA 94115
Pediatrics
2425 GEARY BLVD, RM 3145
SAN FRANCISCO, CA 94115
Pediatrics
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Pharmacist
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Nurse Practitioner (Family)
2425 GEARY BLVD, EMPLOYEE HEALTH
SAN FRANCISCO, CA 94115
Nurse Practitioner (Family)
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Nurse Anesthetist, Certified Registered
2425 GEARY BLVD, DEPT. OF ANESTHESIA
SAN FRANCISCO, CA 94115
Pharmacist
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Nurse Practitioner (Gerontology)
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Health Maintenance Organization
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Nurse Anesthetist, Certified Registered
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Nurse Anesthetist, Certified Registered
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Nurse Anesthetist, Certified Registered
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Physical Therapist
2425 GEARY BLVD, ROOM 1241
SAN FRANCISCO, CA 94115
Registered Nurse
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Physician Assistant (Surgical)
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Dietary Manager
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Physical Therapist
2425 GEARY BLVD, ROOM 1241
SAN FRANCISCO, CA 94115
Nurse Anesthetist, Certified Registered
2425 GEARY BLVD
SAN FRANCISCO, CA 94115
Pharmacist (Pharmacotherapy)
2425 GEARY BLVD, KAISER FOUNDATION HOSPITAL
SAN FRANCISCO, CA 94115

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497972822, enumerated as an "individual" on April 19, 2007.

The provider is located at 2425 GEARY BLVD SAN FRANCISCO, CA 94115 and the phone number is (415) 883-4486.

Registered Nurse with taxonomy code 163WG0600X and a focus in Gerontology.