MR. DONALD CARROLL II MS
NPI 1831763002
Counselor - Professional in Whaleyville, MD
NPI Status: Active since May 13, 2021
Contact Information
7937 OLD OCEAN CITY RD
WHALEYVILLE, MD
ZIP 21872
Phone: (703) 677-6082
- Individual
- Male
- Counselor
- Professional
- PECOS Enrolled
About DONALD CARROLL
This page provides the complete NPI Profile along with additional information for Donald Carroll, a provider established in Whaleyville, Maryland with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1831763002 assigned on May 2021. The practitioner's primary taxonomy code is 101YP2500X with license number LC12984 (MD). The provider is registered as an individual and his NPI record was last updated February 2026.
- NPI
- 1831763002
- Provider Name
- MR. DONALD CARROLL II MS
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 7937 OLD OCEAN CITY RD WHALEYVILLE, MD 21872
- Location Phone
- (703) 677-6082
- Mailing Address
- 7937 OLD OCEAN CITY RD WHALEYVILLE, MD 21872
- Mailing Phone
- (703) 677-6082
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 05-13-2021
- Last Update Date
- 02-19-2026
- 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
Counselor Professional
- Taxonomy Code
- 101YP2500X
- Type
- Behavioral Health & Social Service Providers
- License No.
- LC12984
- License State
- MD
Medicare Participation & PECOS Enrollment Status
Donald Carroll is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): No
Eligible to Order or Refer Power Mobility Devices: No
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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 1831763002, 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.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1831763002, enumerated as an "individual" on May 13, 2021.
The provider is located at 7937 OLD OCEAN CITY RD WHALEYVILLE, MD 21872 and the phone number is (703) 677-6082.
Counselor with taxonomy code 101YP2500X and a focus in Professional.
