FLAVIA HASS
NPI 1891664322
Lactation Consultant, Non-RN in Hillsdale, MI

NPI Status: Active since November 03, 2025

Contact Information

4431 W HALLETT RD
HILLSDALE, MI
ZIP 49242
Phone: (734) 347-5521
Fax: (734) 347-5521

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  • Individual
  • Female
  • Lactation Consultant, Non-RN

About FLAVIA HASS

This page provides the complete NPI Profile along with additional information for Flavia Hass, a provider established in Hillsdale, Michigan with a medical specialization in Lactation Consultant, Non-rn. The healthcare provider is registered in the NPI registry with number 1891664322 assigned on November 2025. The practitioner's primary taxonomy code is 174N00000X with license number L-318358 (MI). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1891664322
Provider Name
FLAVIA HASS
Gender
Female
Entity Type
Individual
Location Address
4431 W HALLETT RD HILLSDALE, MI 49242
Location Phone
(734) 347-5521
Location Fax
(734) 347-5521
Mailing Address
4431 W HALLETT RD HILLSDALE, MI 49242
Mailing Phone
(734) 347-5521
Mailing Fax
(734) 347-5521
Is Sole Proprietor?
Yes
Enumeration Date
11-03-2025
Last Update Date
11-03-2025
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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

Lactation Consultant, Non-RN

Taxonomy Code
174N00000X
Type
Other Service Providers
License No.
L-318358
License State
MI
Taxonomy Description
An individual trained to provide breastfeeding assistance services to both mothers and infants. Lactation Consultants are not required to be nurses and are trained through specific courses of education. The Lactation Consultant may have additional certification through a national or international 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 1891664322, 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 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
8
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
6
Unchanged
Pos 7
4
Doubled → 8
Pos 8
3
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 6 → 12 → 3 4 → 8 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 2 + 6 + 8 + 3 + 4 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1891664322.

Other Providers at the Same Location


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

Lactation Consultant, Non-RN
4431 W HALLETT RD
HILLSDALE, MI 49242

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891664322, enumerated as an "individual" on November 03, 2025.

The provider is located at 4431 W HALLETT RD HILLSDALE, MI 49242 and the phone number is (734) 347-5521.

Lactation Consultant, Non-RN with taxonomy code 174N00000X.