MR. STEPHEN REED MCILVAINE JR. M.A.
NPI 1720180391
Counselor - Professional in Chattanooga, TN

NPI Status: Active since September 02, 2006

Contact Information

105 LEE PKWY W
SUITE H
CHATTANOOGA, TN
ZIP 37421
Phone: (423) 499-9335
Fax: (423) 499-9334

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  • Individual
  • Male
  • Counselor
  • Professional
  • Opted-Out Medicare

About STEPHEN MCILVAINE

This page provides the complete NPI Profile along with additional information for Stephen Mcilvaine, a provider established in Chattanooga, Tennessee with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1720180391 assigned on September 2006. The practitioner's primary taxonomy code is 101YP2500X with license number 560 (TN). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1720180391
Provider Name
MR. STEPHEN REED MCILVAINE JR. M.A.
Gender
Male
Entity Type
Individual
Location Address
105 LEE PKWY W SUITE H CHATTANOOGA, TN 37421
Location Phone
(423) 499-9335
Location Fax
(423) 499-9334
Mailing Address
9309 BERKSHIRE CIR CHATTANOOGA, TN 37421
Mailing Phone
(423) 280-2643
Mailing Fax
(423) 499-9334
Is Sole Proprietor?
No
Enumeration Date
09-02-2006
Last Update Date
07-08-2007
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The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Stephen Mcilvaine opted out of Medicare effective on 03-07-2024 until 03-07-2026. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.

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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.
560
License State
TN

Medicare Participation & PECOS Enrollment Status

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 03-07-2024

  • Opt-Out End Date: 03-07-2026

  • Eligible to Order and Refer? No

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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 1720180391, 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
1
Doubled → 2
Pos 2
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
8
Unchanged
Pos 7
0
Doubled → 0
Pos 8
3
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
1
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 2 → 4 1 → 2 0 → 0 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 2 + 8 + 0 + 3 + 1 + 8 + 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 1720180391.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720180391, enumerated as an "individual" on September 02, 2006.

The provider is located at 105 LEE PKWY W SUITE H CHATTANOOGA, TN 37421 and the phone number is (423) 499-9335.

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