DR. WILLIAM LEWIS THOMAS M.D.
NPI 1124185939
Internal Medicine in Columbia, MD

NPI Status: Active since January 02, 2007

Contact Information

5565 STERRETT PL
5TH FLOOR
COLUMBIA, MD
ZIP 21044
Phone: (410) 772-6544
Fax: (410) 772-6543

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  • Individual
  • Male
  • Internal Medicine

About WILLIAM THOMAS

This page provides the complete NPI Profile along with additional information for William Thomas, an internist established in Columbia, Maryland with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1124185939 assigned on January 2007. The practitioner's primary taxonomy code is 207R00000X with license number D0031526 (MD). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1124185939
Provider Name
DR. WILLIAM LEWIS THOMAS M.D.
Gender
Male
Entity Type
Individual
Location Address
5565 STERRETT PL 5TH FLOOR COLUMBIA, MD 21044
Location Phone
(410) 772-6544
Location Fax
(410) 772-6543
Mailing Address
5565 STERRETT PL 5TH FLOOR COLUMBIA, MD 21044
Mailing Phone
(410) 772-6544
Mailing Fax
(410) 772-6543
Is Sole Proprietor?
No
Enumeration Date
01-02-2007
Last Update Date
07-08-2007
Code Navigator

An internist like William Thomas is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
D0031526
License State
MD
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

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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 1124185939, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
1
Unchanged
Pos 3
2
Doubled → 4
Pos 4
4
Unchanged
Pos 5
1
Doubled → 2
Pos 6
8
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
9
Unchanged
Pos 9
3
Doubled → 6
Check
9
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 5 → 10 → 1 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 4 + 4 + 2 + 8 + 1 + 0 + 9 + 6 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1124185939.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Dentist (General Practice)
5565 STERRETT PL, SUITE 121
COLUMBIA, MD 21044
Clinical Neuropsychologist
5565 STERRETT PL, SUITE 320
COLUMBIA, MD 21044
Clinical Neuropsychologist
5565 STERRETT PL, SUITE 320
COLUMBIA, MD 21044
Clinical Neuropsychologist
5565 STERRETT PL, SUITE 320
COLUMBIA, MD 21044
Clinical Neuropsychologist
5565 STERRETT PL, STE 320
COLUMBIA, MD 21044
Dentist
5565 STERRETT PL, SUITE 121
COLUMBIA, MD 21044
Anesthesiology
5565 STERRETT PL, 5TH FLOOR
COLUMBIA, MD 21044

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1124185939, enumerated as an "individual" on January 02, 2007.

The provider is located at 5565 STERRETT PL 5TH FLOOR COLUMBIA, MD 21044 and the phone number is (410) 772-6544.

Internal Medicine with taxonomy code 207R00000X.