DR. ROBERT L SEYLER LICSW LADC
NPI 1023043510
Counselor - Addiction (Substance Use Disorder) in Methuen, MA

NPI Status: Active since July 12, 2006

Contact Information

236 PLEASANT ST
METHUEN EXECUTIVE PARK
METHUEN, MA
ZIP 01844
Phone: (978) 683-0133
Fax: (978) 683-9818

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  • Individual
  • Male
  • Counselor
  • Addiction (Substance Use Disorder)

About ROBERT SEYLER

This page provides the complete NPI Profile along with additional information for Robert Seyler, a provider established in Methuen, Massachusetts with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1023043510 assigned on July 2006. The practitioner's primary taxonomy code is 101YA0400X with license number 167-LADC-1 (MA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1023043510
Provider Name
DR. ROBERT L SEYLER LICSW LADC
Gender
Male
Entity Type
Individual
Location Address
236 PLEASANT ST METHUEN EXECUTIVE PARK METHUEN, MA 01844
Location Phone
(978) 683-0133
Location Fax
(978) 683-9818
Mailing Address
236 PLEASANT ST METHUEN EXECUTIVE PARK METHUEN, MA 01844
Mailing Phone
(978) 683-0133
Mailing Fax
(978) 683-9818
Is Sole Proprietor?
Yes
Enumeration Date
07-12-2006
Last Update Date
09-11-2025
Code Navigator

A Substance Abuse or Addiction Counselor like Robert Seyler advices patients who experience alcoholism, drug addiction, eating disorders, mental health issues, or other mental or behavioral problems. Substance Abuse counselors provide treatment and support to help clients recover from addiction or modify problem behaviors. Many counselors incorporate the principles of 12-step programs, such as Alcoholics Anonymous (AA). They educate clients how to cope with stress and life’s issues in ways that help them recover. Counselors also help patients improve their personal relationships and find ways to discuss their addiction or other problems with family and friends.

Location Map

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 Addiction (Substance Use Disorder)

Taxonomy Code
101YA0400X
Type
Behavioral Health & Social Service Providers
License No.
167-LADC-1
License State
MA

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
11041C0700XBehavioral Health & Social Service Providers

Social Worker
Clinical

105872 (MA)

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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 1023043510, 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 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
0
Unchanged
Pos 3
2
Doubled → 4
Pos 4
3
Unchanged
Pos 5
0
Doubled → 0
Pos 6
4
Unchanged
Pos 7
3
Doubled → 6
Pos 8
5
Unchanged
Pos 9
1
Doubled → 2
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 2 → 4 0 → 0 3 → 6 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 4 + 3 + 0 + 4 + 6 + 5 + 2 + 24 = 50

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

The next multiple of ten after 50 is 50. The difference is the calculated check digit.

50 - 50 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1023043510.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Non-emergency Medical Transport (VAN)
236 PLEASANT ST
METHUEN, MA 01844
Home Health
236 PLEASANT ST, 2ND FLR
METHUEN, MA 01844
Chiropractor
236 PLEASANT ST
METHUEN, MA 01844

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1023043510, enumerated as an "individual" on July 12, 2006.

The provider is located at 236 PLEASANT ST METHUEN EXECUTIVE PARK METHUEN, MA 01844 and the phone number is (978) 683-0133.

Counselor with taxonomy code 101YA0400X and a focus in Addiction (Substance Use Disorder).