JOHN P DUGGAN MA, NCC, LCPC, LPC
NPI 1134148893
Counselor - Professional in Silver Spring, MD
NPI Status: Active since July 19, 2006
Contact Information
8720 GEORGIA AVE
SUITE 500
SILVER SPRING, MD
ZIP 20910
Phone: (202) 374-1000
Fax: (877) 825-4735
NPPES record last updated: August 23, 2013. Verified against the NPPES registry weekly; last sync: July 12, 2026.
- Individual
- Male
- Counselor
- Professional
About JOHN DUGGAN
This page provides the complete NPI Profile along with additional information for John Duggan, a provider established in Silver Spring, Maryland with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1134148893 assigned on July 2006. The practitioner's primary taxonomy code is 101YP2500X with license number LC2214 (MD). The provider is registered as an individual and his NPI record was last updated 13 years ago.
- NPI
- 1134148893
- Provider Name
- JOHN P DUGGAN MA, NCC, LCPC, LPC
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 8720 GEORGIA AVE SUITE 500 SILVER SPRING, MD 20910
- Location Phone
- (202) 374-1000
- Location Fax
- (877) 825-4735
- Mailing Address
- 8720 GEORGIA AVE SUITE 500 SILVER SPRING, MD 20910
- Mailing Phone
- (202) 374-1000
- Mailing Fax
- (877) 825-4735
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 07-19-2006
- Last Update Date
- 08-23-2013
- 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.
- LC2214
- License State
- MD
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 | PRC13893 (DC) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 643218 | OTHER (01) | MD | MARYLAND MEDICARE PROVIDER ID |
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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 1134148893, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).
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 67 is 70. 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.
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
SILVER SPRING, MD 20910
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1134148893, enumerated as an "individual" on July 19, 2006.
The provider is located at 8720 GEORGIA AVE SUITE 500 SILVER SPRING, MD 20910 and the phone number is (202) 374-1000.
Counselor with taxonomy code 101YP2500X and a focus in Professional.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
