AMY MAEVE SUNDSTROM LM, CPM
NPI 1851717045
Midwife in Redwood City, CA

NPI Status: Active since March 11, 2014

Contact Information

155 BIRCH ST STE 2
REDWOOD CITY, CA
ZIP 94062
Phone: (650) 313-5530
Fax: (650) 313-5532

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  • Individual
  • Female
  • Midwife

About AMY SUNDSTROM

This page provides the complete NPI Profile along with additional information for Amy Sundstrom, a provider established in Redwood City, California with a medical specialization in Midwife. The healthcare provider is registered in the NPI registry with number 1851717045 assigned on March 2014. The practitioner's primary taxonomy code is 176B00000X with license number 516 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1851717045
Provider Name
AMY MAEVE SUNDSTROM LM, CPM
Gender
Female
Entity Type
Individual
Location Address
155 BIRCH ST STE 2 REDWOOD CITY, CA 94062
Location Phone
(650) 313-5530
Location Fax
(650) 313-5532
Mailing Address
155 BIRCH ST STE 2 REDWOOD CITY, CA 94062
Mailing Phone
(650) 313-5530
Mailing Fax
(650) 313-5532
Is Sole Proprietor?
Yes
Enumeration Date
03-11-2014
Last Update Date
06-16-2025
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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

Midwife

Taxonomy Code
176B00000X
Type
Other Service Providers
License No.
516
License State
CA
Taxonomy Description
A Midwife is a trained professional with special expertise in supporting women to maintain a healthy pregnancy birth, offering expert individualized care, education, counseling, and support to a woman and her newborn throughout the childbearing cycle. A Midwife is a skilled and independent practitioner who has undergone formalized training. Midwives are not required to be nurses and may be trained via multiple routes of education (apprenticeship, workshop, formal classes, or programs, etc., usually a combination). The educational background requirements and licensing requirements vary by state. The Midwife may or may not be certified by a state or national organization.

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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 1851717045, 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
1
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
0
Unchanged
Pos 9
4
Doubled → 8
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 5 → 10 → 1 7 → 14 → 5 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 1 + 4 + 1 + 1 + 4 + 0 + 8 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1851717045.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Doula
155 BIRCH ST STE 2
REDWOOD CITY, CA 94062

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851717045, enumerated as an "individual" on March 11, 2014.

The provider is located at 155 BIRCH ST STE 2 REDWOOD CITY, CA 94062 and the phone number is (650) 313-5530.

Midwife with taxonomy code 176B00000X.