SHERRILL MCMILLAN
NPI 1699221390
Counselor - Professional in Alexandria, VA

NPI Status: Active since September 01, 2016

Contact Information

3201 LANOVER STREET
APT 1706
ALEXANDRIA, VA
ZIP 22305
Phone: (202) 368-2913

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  • Individual
  • Female
  • Counselor
  • Professional

About SHERRILL MCMILLAN

This page provides the complete NPI Profile along with additional information for Sherrill Mcmillan, a provider established in Alexandria, Virginia with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1699221390 assigned on September 2016. The practitioner's primary taxonomy code is 101YP2500X with license number PRC80 (DC). The provider is registered as an individual and her NPI record was last updated 10 years ago.

NPI
1699221390
Provider Name
SHERRILL MCMILLAN
Gender
Female
Entity Type
Individual
Location Address
3201 LANOVER STREET APT 1706 ALEXANDRIA, VA 22305
Location Phone
(202) 368-2913
Mailing Address
3201 LANOVER STREET APT 1706 ALEXANDRIA, VA 22305
Mailing Phone
(202) 368-2913
Is Sole Proprietor?
Yes
Enumeration Date
09-01-2016
Last Update Date
09-01-2016
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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

Counselor Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License No.
PRC80
License State
DC

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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 1699221390, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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
6
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
9
Unchanged
Pos 5
2
Doubled → 4
Pos 6
2
Unchanged
Pos 7
1
Doubled → 2
Pos 8
3
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
0
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 2 → 4 1 → 2 9 → 18 → 9

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 + 4 + 2 + 2 + 3 + 1 + 8 + 24 = 70

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

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

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1699221390.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1699221390, enumerated as an "individual" on September 01, 2016.

The provider is located at 3201 LANOVER STREET APT 1706 ALEXANDRIA, VA 22305 and the phone number is (202) 368-2913.

Counselor with taxonomy code 101YP2500X and a focus in Professional.