DR. ADAM GEROFF
NPI 1881646271
Emergency Medicine in Hagerstown, MD
NPI Status: Active since May 16, 2006
Contact Information
251 E ANTIETAM ST
HAGERSTOWN, MD
ZIP 21740
Phone: (240) 313-9500
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.
- Individual
- Male
- Emergency Medicine
About ADAM GEROFF
This page provides the complete NPI Profile along with additional information for Adam Geroff, a provider established in Hagerstown, Maryland with a medical specialization in Emergency Medicine. The healthcare provider is registered in the NPI registry with number 1881646271 assigned on May 2006. The practitioner's primary taxonomy code is 207P00000X with license number D0052027 (MD). The provider is registered as an individual and his NPI record was last updated July 2026.
- NPI
- 1881646271
- Provider Name
- DR. ADAM GEROFF
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 251 E ANTIETAM ST HAGERSTOWN, MD 21740
- Location Phone
- (240) 313-9500
- Mailing Address
- PO BOX 631479 BALTIMORE, MD 21263
- Mailing Phone
- (301) 293-0232
- Mailing Fax
- (301) 631-1002
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-16-2006
- Last Update Date
- 07-13-2026
- 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
Emergency Medicine
- Taxonomy Code
- 207P00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- D0052027
- License State
- MD
- Taxonomy Description
- An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
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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 1881646271, 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 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.
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 59 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
HAGERSTOWN, MD 21740
HAGERSTOWN, MD 21740
HAGERSTOWN, MD 21740
HAGERSTOWN, MD 21740
HAGERSTOWN, MD 21740
HAGERSTOWN, MD 21740
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1881646271, enumerated as an "individual" on May 16, 2006.
The provider is located at 251 E ANTIETAM ST HAGERSTOWN, MD 21740 and the phone number is (240) 313-9500.
Emergency Medicine with taxonomy code 207P00000X.
