DR. PHILLIP DORIAN KROLL MD
NPI 1699874776
Psychiatry & Neurology - Addiction Psychiatry in Ypsilanti, MI

NPI Status: Active since September 22, 2006

Contact Information

555 TOWNER ST
YPSILANTI, MI
ZIP 48198
Phone: (734) 544-6716
Fax: (734) 544-6732

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

Individual
Male
Psychiatry & Neurology
Addiction Psychiatry

About PHILLIP KROLL

This page provides the complete NPI Profile along with additional information for Phillip Kroll, a provider established in Ypsilanti, Michigan with a medical specialization in Psychiatry & Neurology, focusing in addiction psychiatry . The healthcare provider is registered in the NPI registry with number 1699874776 assigned on September 2006. The practitioner's primary taxonomy code is 2084P0802X with license number 4301028333 (MI). The provider is registered as an individual and his NPI record was last updated 12 years ago.

NPI: 1699874776
Provider Name: DR. PHILLIP DORIAN KROLL MD
Gender: Male
Entity Type: Individual
Location Address: 555 TOWNER ST YPSILANTI, MI 48198
Location Phone: (734) 544-6716
Location Fax: (734) 544-6732
Mailing Address: 502 ROCK CREEK DR ANN ARBOR, MI 48104
Mailing Phone: (734) 662-0409
Is Sole Proprietor?: No
Enumeration Date: 09-22-2006
Last Update Date: 02-04-2014
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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: Psychiatry & Neurology Addiction Psychiatry
Taxonomy Code: 2084P0802X
Type: Allopathic & Osteopathic Physicians
License No.: 4301028333
License State: MI
Taxonomy Description: Addiction Psychiatry is a subspecialty of psychiatry that focuses on evaluation and treatment of individuals with alcohol, drug, or other substance-related disorders, and of individuals with dual diagnosis of substance-related and other psychiatric disorders.

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 1699874776, we treat the final digit (6) 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 84. The final step is to find the difference between that total and the next multiple of ten (90 - 84 = 6).

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 → 18 → 1 + 8

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 8

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

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 9 → 18 → 9 8 → 16 → 7 4 → 8 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 8 + 9 + 1 + 6 + 7 + 8 + 7 + 1 + 4 + 24 = 84

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

The next multiple of ten after 84 is 90. The difference is the calculated check digit.

90 - 84 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1699874776.