MARJORIE B. MCKNIGHT MD PC
NPI 1245913052
Pediatrics in Washington, DC
NPI Status: Active since August 09, 2023
Contact Information
106 IRVING ST NW STE 2300
WASHINGTON, DC
ZIP 20010
Phone: (202) 291-6257
Fax: (202) 726-4926
- Organization
- Pediatrics
- CLIA Number: 09D2263580
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 06-28-2026
About MARJORIE B. MCKNIGHT MD PC
This page provides the complete NPI Profile along with additional information for Marjorie B. Mcknight Md Pc, a pediatrician established in Washington, District Of Columbia operating as a Pediatrics. The healthcare provider is registered in the NPI registry with number 1245913052 assigned on August 2023. The practitioner's primary taxonomy code is 208000000X. The provider is registered as an organization and their NPI record was last updated February 2026. Marjorie B. Mcknight Md Pc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Mr. Kyle Anthony Butler-myers (Practice Manager)
- NPI
- 1245913052
- Provider Name
- MARJORIE B. MCKNIGHT MD PC
- Entity Type
- Organization
- Location Address
- 106 IRVING ST NW STE 2300 WASHINGTON, DC 20010
- Location Phone
- (202) 291-6257
- Location Fax
- (202) 726-4926
- Mailing Address
- 106 IRVING ST NW STE 2300 WASHINGTON, DC 20010
- Mailing Phone
- (202) 291-6257
- Mailing Fax
- (202) 726-4926
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 08-09-2023
- Last Update Date
- 02-20-2026
- Code Navigator
A pediatrician like Marjorie B. Mcknight Md Pc is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, etc.
Location Map
Secondary Locations
- 106 Irving St NW Ste 2600
Washington, DC 20010
(202) 291-6257
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
Pediatrics
- Taxonomy Code
- 208000000X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 101YP2500X | Behavioral Health & Social Service Providers | Counselor |
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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
- 09D2263580
- Facility Type
- Physician Office
- Certificate Effective Date
- June 29, 2024
- Certificate Expiration Date
- June 28, 2026
- Laboratory Director
- DR. MARJORIE B. MCKNIGHT
- Certificate Type
- Certificate of Waiver
- Certificate Type Description
- This CLIA certificate is issued to Marjorie B. Mcknight 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 1245913052, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 58 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 8 providers are registered at the same or a nearby location.
WASHINGTON, DC 20010
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1245913052, enumerated as an "organization" on August 09, 2023.
The provider is located at 106 IRVING ST NW STE 2300 WASHINGTON, DC 20010 and the phone number is (202) 291-6257.
Pediatrics with taxonomy code 208000000X.
