DR. GREGORY MCDONALD DO
NPI 1578422127
Pathology - Forensic Pathology in Philadelphia, PA
NPI Status: Active since January 20, 2026
Contact Information
66 MARPLE DR
PHILADELPHIA, PA
ZIP 19115
Phone: (215) 287-7465
- Individual
- Male
- Pathology
- Forensic Pathology
About GREGORY MCDONALD
This page provides the complete NPI Profile along with additional information for Gregory Mcdonald, a provider established in Philadelphia, Pennsylvania with a medical specialization in Pathology, focusing in forensic pathology . The healthcare provider is registered in the NPI registry with number 1578422127 assigned on January 2026. The practitioner's primary taxonomy code is 207ZF0201X with license number OSOO7268L (PA). The provider is registered as an individual and his NPI record was last updated January 2026.
- NPI
- 1578422127
- Provider Name
- DR. GREGORY MCDONALD DO
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 66 MARPLE DR PHILADELPHIA, PA 19115
- Location Phone
- (215) 287-7465
- Mailing Address
- 66 MARPLE DR PHILADELPHIA, PA 19115
- Mailing Phone
- (215) 287-7465
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-20-2026
- Last Update Date
- 01-20-2026
- Code Navigator
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
Pathology Forensic Pathology
- Taxonomy Code
- 207ZF0201X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- OSOO7268L
- License State
- PA
- Taxonomy Description
- A forensic pathologist is expert in investigating and evaluating cases of sudden, unexpected, suspicious and violent death as well as other specific classes of death defined by law. The forensic pathologist serves the public as coroner or medical examiner, or by performing medicolegal autopsies for such officials.
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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 1578422127, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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 63 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1578422127, enumerated as an "individual" on January 20, 2026.
The provider is located at 66 MARPLE DR PHILADELPHIA, PA 19115 and the phone number is (215) 287-7465.
Pathology with taxonomy code 207ZF0201X and a focus in Forensic Pathology.
