FREDERICK W. WALKER, M.D., P.A.
NPI 1053403170
Clinic/Center - Medical Specialty in Forest Hill, MD

NPI Status: Active since September 28, 2006

Contact Information

2005 ROCK SPRING RD
FOREST HILL, MD
ZIP 21050
Phone: (410) 836-0909
Fax: (410) 893-2325

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  • Organization
  • Clinic/Center
  • Medical Specialty

About FREDERICK W. WALKER, M.D., P.A.

This page provides the complete NPI Profile along with additional information for Frederick W. Walker, M.d., P.a., a provider established in Forest Hill, Maryland operating as a Clinic/center, focusing in medical specialty . The healthcare provider is registered in the NPI registry with number 1053403170 assigned on September 2006. The practitioner's primary taxonomy code is 261QM2500X with license number DOO20463 (MD). The provider is registered as an organization and their NPI record was last updated 6 years ago. The authorized official of this NPI record is Dr. Frederick William Walker M.d. (President)

NPI
1053403170
Provider Name
FREDERICK W. WALKER, M.D., P.A.
Entity Type
Organization
Location Address
2005 ROCK SPRING RD FOREST HILL, MD 21050
Location Phone
(410) 836-0909
Location Fax
(410) 893-2325
Mailing Address
2005 ROCK SPRING RD FOREST HILL, MD 21050
Mailing Phone
(410) 836-0909
Mailing Fax
(410) 893-2325
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-28-2006
Last Update Date
08-22-2020
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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

Clinic/Center Medical Specialty

Taxonomy Code
261QM2500X
Type
Ambulatory Health Care Facilities
License No.
DOO20463
License State
MD
Taxonomy Description
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).

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. FREDERICK WILLIAM WALKER M.D.

Authorized Official Title
PRESIDENT
Authorized Official Phone
(410) 836-0909

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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 1053403170, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).

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
0
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
3
Unchanged
Pos 5
4
Doubled → 8
Pos 6
0
Unchanged
Pos 7
3
Doubled → 6
Pos 8
1
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
0
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 5 → 10 → 1 4 → 8 3 → 6 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 0 + 3 + 8 + 0 + 6 + 1 + 1 + 4 + 24 = 50

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

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

50 - 50 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1053403170.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Obstetrics & Gynecology (Gynecology)
2005 ROCK SPRING RD, SUITE 3
FOREST HILL, MD 21050
Surgery
2005 ROCK SPRING RD, SUITE 5
FOREST HILL, MD 21050
Pathology (Anatomic Pathology & Clinical Pathology)
2005 ROCK SPRING RD
FOREST HILL, MD 21050
Pediatrics
2005 ROCK SPRING RD, SUITE#1
FOREST HILL, MD 21050
Community Health Worker
2005 ROCK SPRING RD, SUITE 3
FOREST HILL, MD 21050
Pediatrics
2005 ROCK SPRING RD, SUITE # ONE
FOREST HILL, MD 21050
Massage Therapist
2005 ROCK SPRING RD, SUITE 3
FOREST HILL, MD 21050
Physician Assistant
2005 ROCK SPRING RD
FOREST HILL, MD 21050

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1053403170, enumerated as an "organization" on September 28, 2006.

The provider is located at 2005 ROCK SPRING RD FOREST HILL, MD 21050 and the phone number is (410) 836-0909.

Clinic/Center with taxonomy code 261QM2500X and a focus in Medical Specialty.