DR JOSEPH K JAMARIS , LLC
NPI 1437328531
Neurological Surgery in Columbia, MD

NPI Status: Active since February 22, 2008

Contact Information

10705 CHARTER DR STE 430
COLUMBIA, MD
ZIP 21044
Phone: (410) 768-4644
Fax: (410) 720-1215

NPI Profile Information
Primary Taxonomy
Group Taxonomy
Authorized Official
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Organization
Neurological Surgery

About DR JOSEPH K JAMARIS , LLC

This page provides the complete NPI Profile along with additional information for Dr Joseph K Jamaris , Llc, a provider established in Columbia, Maryland operating as a Neurological Surgery. The healthcare provider is registered in the NPI registry with number 1437328531 assigned on February 2008. The practitioner's primary taxonomy code is 207T00000X with license number D0014806 (MD). The provider is registered as an organization and their NPI record was last updated one year 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 Joseph K Jamaris M.d. (Owner)

NPI: 1437328531
Provider Name: DR JOSEPH K JAMARIS , LLC
Entity Type: Organization
Location Address: 10705 CHARTER DR STE 430 COLUMBIA, MD 21044
Location Phone: (410) 768-4644
Location Fax: (410) 720-1215
Mailing Address: 11005 WOOD ELVES WAY COLUMBIA, MD 21044
Mailing Phone: (410) 768-4644
Mailing Fax: (410) 720-1215
Is Sole Proprietor?: No
Is Organization Subpart?: No
Enumeration Date: 02-22-2008
Last Update Date: 09-16-2025
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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: Neurological Surgery
Taxonomy Code: 207T00000X
Type: Allopathic & Osteopathic Physicians
License No.: D0014806
License State: MD
Taxonomy Description: A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.

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: JOSEPH K JAMARIS M.D.
Authorized Official Title: OWNER
Authorized Official Phone: (410) 768-4644

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 1437328531, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 6

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 6

Check

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 8 → 16 → 7 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 6 + 7 + 6 + 2 + 1 + 6 + 5 + 6 + 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 1437328531.