DAVID A THOMAS, LTD
NPI 1518908946
Psychiatry & Neurology - Neurology in Glen Mills, PA

NPI Status: Active since June 09, 2006

Contact Information

1788 WILMINGTON PIKE
SUITE 100
GLEN MILLS, PA
ZIP 19342
Phone: (610) 744-2960
Fax: (610) 744-2420

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  • Organization
  • Psychiatry & Neurology
  • Neurology

About DAVID A THOMAS, LTD

This page provides the complete NPI Profile along with additional information for David A Thomas, Ltd, a provider established in Glen Mills, Pennsylvania operating as a Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1518908946 assigned on June 2006. The practitioner's primary taxonomy code is 2084N0400X with license number OS004234L (PA). The provider is registered as an organization and their NPI record was last updated April 2026. David A Thomas, Ltd operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is David A Thomas (Neurologist)

NPI
1518908946
Provider Name
DAVID A THOMAS, LTD
Entity Type
Organization
Location Address
1788 WILMINGTON PIKE SUITE 100 GLEN MILLS, PA 19342
Location Phone
(610) 744-2960
Location Fax
(610) 744-2420
Mailing Address
1788 WILMINGTON PIKE SUITE 100 GLEN MILLS, PA 19342
Mailing Phone
(610) 744-2960
Mailing Fax
(610) 744-2420
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-09-2006
Last Update Date
04-28-2026
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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 Neurology

Taxonomy Code
2084N0400X
Type
Allopathic & Osteopathic Physicians
License No.
OS004234L
License State
PA
Taxonomy Description
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DAVID A THOMAS

Authorized Official Title
NEUROLOGIST
Authorized Official Phone
(610) 744-2960

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
001489337OTHER (01)PAHIGHMARK BLUE SHIELD ID

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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 1518908946, 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 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
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
1
Doubled → 2
Pos 4
8
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
9
Unchanged
Pos 9
4
Doubled → 8
Check
6
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 1 → 2 9 → 18 → 9 8 → 16 → 7 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 2 + 8 + 1 + 8 + 0 + 1 + 6 + 9 + 8 + 24 = 74

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

The next multiple of ten after 74 is 80. The difference is the calculated check digit.

80 - 74 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1518908946.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Psychologist (Clinical)
1788 WILMINGTON PIKE, SUITE 107
GLEN MILLS, PA 19342
Psychologist (Clinical)
1788 WILMINGTON PIKE, SUITE 2700
GLEN MILLS, PA 19342
Psychologist (Clinical)
1788 WILMINGTON PIKE
GLEN MILLS, PA 19342
Internal Medicine
1788 WILMINGTON PIKE, SUITE 2400
GLEN MILLS, PA 19342
Nurse Practitioner (Family)
1788 WILMINGTON PIKE
GLEN MILLS, PA 19342
Nurse Practitioner (Adult Health)
1788 WILMINGTON PIKE, SUITE 100
GLEN MILLS, PA 19342
Family Medicine
1788 WILMINGTON PIKE, SUITE 100
GLEN MILLS, PA 19342
Psychiatry & Neurology (Neurology)
1788 WILMINGTON PIKE, SUITE 100
GLEN MILLS, PA 19342
Psychologist
1788 WILMINGTON PIKE, SUITE 100
GLEN MILLS, PA 19342

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1518908946, enumerated as an "organization" on June 09, 2006.

The provider is located at 1788 WILMINGTON PIKE SUITE 100 GLEN MILLS, PA 19342 and the phone number is (610) 744-2960.

Psychiatry & Neurology with taxonomy code 2084N0400X and a focus in Neurology.

The provider might be accepting Accepts: Blue Cross Blue Shield, Highmark Blue Shield,. Please consult your insurance carrier or call the provider to verify.