MRS. SHARON ADELE DOLE HAMILTON RN
NPI 1316648652
Doula in San Rafael, CA

NPI Status: Active since March 14, 2023

Contact Information

3260 KERNER BLVD
SAN RAFAEL, CA
ZIP 94901
Phone: (415) 448-1500

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Doula

About SHARON HAMILTON

This page provides the complete NPI Profile along with additional information for Sharon Hamilton, a provider established in San Rafael, California with a medical specialization in Doula. The healthcare provider is registered in the NPI registry with number 1316648652 assigned on March 2023. The practitioner's primary taxonomy code is 374J00000X. The provider is registered as an individual and her NPI record was last updated 3 years ago.

NPI: 1316648652
Provider Name: MRS. SHARON ADELE DOLE HAMILTON RN
Gender: Female
Entity Type: Individual
Location Address: 3260 KERNER BLVD SAN RAFAEL, CA 94901
Location Phone: (415) 448-1500
Mailing Address: 18 GROVE LN SAN ANSELMO, CA 94960
Mailing Phone: (415) 342-1044
Is Sole Proprietor?: Yes
Enumeration Date: 03-14-2023
Last Update Date: 03-14-2023
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: Doula
Taxonomy Code: 374J00000X
Type: Nursing Service Related Providers
Taxonomy Description: Doulas work in a variety of settings and have been trained to provide physical, emotional, and informational support to a mother before, during, and just after birth and/or provide emotional and practical support to a mother during the postpartum period.

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 1316648652, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 2

Pos 4

Unchanged

Pos 5

Doubled → 12 → 1 + 2

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

Check

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 1 → 2 6 → 12 → 3 8 → 16 → 7 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 2 + 6 + 1 + 2 + 4 + 1 + 6 + 6 + 1 + 0 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2

This NPI is valid

The calculated check digit is 2, which matches the last digit of 1316648652.