WHITNEY MICHELLE O'BRIEN CNM
NPI 1407709801
Advanced Practice Midwife in Phoenix, AZ

NPI Status: Active since February 17, 2026

Contact Information

1300 N 12TH ST STE 620
PHOENIX, AZ
ZIP 85006
Phone: (602) 283-3668
Fax: (833) 471-4328

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

Individual
Female
Advanced Practice Midwife

About WHITNEY O'BRIEN

This page provides the complete NPI Profile along with additional information for Whitney O'brien, a provider established in Phoenix, Arizona with a medical specialization in Advanced Practice Midwife. The healthcare provider is registered in the NPI registry with number 1407709801 assigned on February 2026. The practitioner's primary taxonomy code is 367A00000X with license number 168447 (AZ). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI: 1407709801
Provider Name: WHITNEY MICHELLE O'BRIEN CNM
Gender: Female
Entity Type: Individual
Location Address: 1300 N 12TH ST STE 620 PHOENIX, AZ 85006
Location Phone: (602) 283-3668
Location Fax: (833) 471-4328
Mailing Address: 1119 E FLYNN LN PHOENIX, AZ 85014
Mailing Phone: (623) 687-6274
Is Sole Proprietor?: No
Enumeration Date: 02-17-2026
Last Update Date: 02-24-2026
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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: Advanced Practice Midwife
Taxonomy Code: 367A00000X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: 168447
License State: AZ
Taxonomy Description: Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproductive health; gynecologic health; and family planning services, including preconception care. Midwives also provide primary care for individuals from adolescence throughout the lifespan as well as care for the healthy newborn during the first 28 days of life. Midwives provide initial and ongoing comprehensive assessment, diagnosis, and treatment. Midwifery care includes health promotion, disease prevention, risk assessment and management, and individualized wellness education and counseling. Source: American College of Nurse-Midwives, www.midwife.org Additional Resources: See the American College of Nurse-Midwives, www.midwife.org, for more information on Certified Nurse-Midwives, Certified Midwives, the American Midwifery Certification Board (AMCB), and licensure.

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 1407709801, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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 → 0

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 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 0 → 0 7 → 14 → 5 9 → 18 → 9 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 0 + 7 + 1 + 4 + 0 + 1 + 8 + 8 + 0 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1

This NPI is valid

The calculated check digit is 1, which matches the last digit of 1407709801.