CLARE GRADY MD
NPI 1801546163
Neurological Surgery in Washington, DC

NPI Status: Active since March 28, 2022

Contact Information

111 MICHIGAN AVE NW
WASHINGTON, DC
ZIP 20010
Phone: (202) 476-5000

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  • Individual
  • Female
  • Neurological Surgery

About CLARE GRADY

This page provides the complete NPI Profile along with additional information for Clare Grady, a provider established in Washington, District Of Columbia with a medical specialization in Neurological Surgery. The healthcare provider is registered in the NPI registry with number 1801546163 assigned on March 2022. The practitioner's primary taxonomy code is 207T00000X with license number MD600005101 (DC). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1801546163
Provider Name
CLARE GRADY MD
Gender
Female
Entity Type
Individual
Location Address
111 MICHIGAN AVE NW WASHINGTON, DC 20010
Location Phone
(202) 476-5000
Mailing Address
PO BOX 744785 ATLANTA, GA 30374
Mailing Phone
(202) 476-5000
Is Sole Proprietor?
No
Enumeration Date
03-28-2022
Last Update Date
03-28-2026
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Location Map

Secondary Locations

  • 3800 Reservoir Rd NW
    Washington, DC 20007
    (202) 444-4872
  • 110 Irving St NW
    Washington, DC 20010
    (202) 877-3536

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.
MD600005101
License State
DC
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.

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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 1801546163, we treat the final digit (3) 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 47. The final step is to find the difference between that total and the next multiple of ten (50 - 47 = 3).

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
8
Unchanged
Pos 3
0
Doubled → 0
Pos 4
1
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
4
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
1
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
3
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 0 → 0 5 → 10 → 1 6 → 12 → 3 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 1 + 0 + 4 + 1 + 2 + 1 + 1 + 2 + 24 = 47

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

The next multiple of ten after 47 is 50. The difference is the calculated check digit.

50 - 47 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1801546163.

Other Providers at the Same Location


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

Physical Medicine & Rehabilitation
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Anesthesiology (Pediatric Anesthesiology)
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Pediatrics (Pediatric Allergy/Immunology)
111 MICHIGAN AVE NW, 111 MICHIGAN AVENUE, NW
WASHINGTON, DC 20010
Pediatrics
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Pediatrics
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Internal Medicine
111 MICHIGAN AVE NW, CHILDREN'S NATIONAL MEDICAL CENTER
WASHINGTON, DC 20010
Pediatrics (Pediatric Pulmonology)
111 MICHIGAN AVE NW, CHILDREN'S NATIONAL MEDICAL CENTER, SUITE 1030
WASHINGTON, DC 20010
Internal Medicine (Cardiovascular Disease)
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Pediatrics (Pediatric Gastroenterology)
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Pediatrics (Pediatric Critical Care Medicine)
111 MICHIGAN AVE NW, CMIO
WASHINGTON, DC 20010
Pediatrics
111 MICHIGAN AVE NW, GASTROENTEROLOGY, WW2.5
WASHINGTON, DC 20010
Nurse Practitioner (Pediatrics)
111 MICHIGAN AVE NW, UROLOGY
WASHINGTON, DC 20010
Pediatrics (Pediatric Critical Care Medicine)
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Nurse Practitioner
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Pediatrics
111 MICHIGAN AVE NW, WEST WING, FLOOR 1.5 SUITE 600
WASHINGTON, DC 20010
Pediatrics (Pediatric Emergency Medicine)
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Pediatrics (Pediatric Nephrology)
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Anesthesiology
111 MICHIGAN AVE NW
WASHINGTON, DC 20010
Pediatrics (Pediatric Emergency Medicine)
111 MICHIGAN AVE NW, CNMC- DIVISION OF EMERGENCY MEDICINE
WASHINGTON, DC 20010
Pediatrics (Pediatric Cardiology)
111 MICHIGAN AVE NW
WASHINGTON, DC 20010

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801546163, enumerated as an "individual" on March 28, 2022.

The provider is located at 111 MICHIGAN AVE NW WASHINGTON, DC 20010 and the phone number is (202) 476-5000.

Neurological Surgery with taxonomy code 207T00000X.