ARTHUR WILLIAMS MD PC
NPI 1932381621
Internal Medicine in Huntsville, AL

NPI Status: Active since December 04, 2007

Contact Information

1 HOSPITAL DR SW
SUITE 301
HUNTSVILLE, AL
ZIP 35801
Phone: (256) 882-0000
Fax: (256) 882-1994

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  • Organization
  • Internal Medicine
  • CLIA Number: 01D1043577
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 07-26-2027

About ARTHUR WILLIAMS MD PC

This page provides the complete NPI Profile along with additional information for Arthur Williams Md Pc, an internist established in Huntsville, Alabama operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1932381621 assigned on December 2007. The practitioner's primary taxonomy code is 207R00000X with license number 21846 (AL). The provider is registered as an organization and their NPI record was last updated 19 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Arthur Michael Williams Md (Physician/owner)

NPI
1932381621
Provider Name
ARTHUR WILLIAMS MD PC
Entity Type
Organization
Location Address
1 HOSPITAL DR SW SUITE 301 HUNTSVILLE, AL 35801
Location Phone
(256) 882-0000
Location Fax
(256) 882-1994
Mailing Address
1 HOSPITAL DR SW SUITE 301 HUNTSVILLE, AL 35801
Mailing Phone
(256) 882-0000
Mailing Fax
(256) 882-1994
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
12-04-2007
Last Update Date
12-04-2007
Code Navigator

An internist like Arthur Williams Md Pc 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.
21846
License State
AL
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.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

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

DR. ARTHUR MICHAEL WILLIAMS MD

Authorized Official Title
PHYSICIAN/OWNER
Authorized Official Phone
(256) 882-0000

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
01D1043577
Facility Type
Physician Office
Certificate Effective Date
July 27, 2025
Certificate Expiration Date
July 26, 2027
Laboratory Director
DR. SANGEETA HANS
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Arthur Williams Md Pc to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1932381621, 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 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
9
Unchanged
Pos 3
3
Doubled → 6
Pos 4
2
Unchanged
Pos 5
3
Doubled → 6
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
6
Unchanged
Pos 9
2
Doubled → 4
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 3 → 6 3 → 6 1 → 2 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 6 + 2 + 6 + 8 + 2 + 6 + 4 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1932381621.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Emergency Medicine
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Hospitalist
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Internal Medicine
1 HOSPITAL DR SW, SUITE 301
HUNTSVILLE, AL 35801
Specialist
1 HOSPITAL DR SW, SUITE 100
HUNTSVILLE, AL 35801
Family Medicine (Addiction Medicine)
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Nurse Anesthetist, Certified Registered
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Emergency Medicine
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Emergency Medicine
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Emergency Medicine
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Emergency Medicine
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Counselor
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1 HOSPITAL DR SW, SUITE 300
HUNTSVILLE, AL 35801
Internal Medicine (Hematology & Oncology)
1 HOSPITAL DR SW, STE 400
HUNTSVILLE, AL 35801
Surgery (Vascular Surgery)
1 HOSPITAL DR SW, CRESTWOOD MEDICAL PAVILLION SUITE 300
HUNTSVILLE, AL 35801
Hospitalist
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Nurse Practitioner (Family)
1 HOSPITAL DR SW, SUITE #400
HUNTSVILLE, AL 35801
General Acute Care Hospital
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Dietitian, Registered
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1 HOSPITAL DR SW, SUITE 300
HUNTSVILLE, AL 35801
Surgery (Vascular Surgery)
1 HOSPITAL DR SW
HUNTSVILLE, AL 35801

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1932381621, enumerated as an "organization" on December 04, 2007.

The provider is located at 1 HOSPITAL DR SW SUITE 301 HUNTSVILLE, AL 35801 and the phone number is (256) 882-0000.

Internal Medicine with taxonomy code 207R00000X.