MR. DAVID ANDREW DUMMER
NPI 1083028088
Counselor - Professional in Annapolis, MD

NPI Status: Active since June 17, 2014

Contact Information

60 WEST ST STE 101-1888
ANNAPOLIS, MD
ZIP 21401
Phone: (301) 677-1734

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  • Individual
  • Male
  • Counselor
  • Professional

About DAVID DUMMER

This page provides the complete NPI Profile along with additional information for David Dummer, a provider established in Annapolis, Maryland with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1083028088 assigned on June 2014. The practitioner's primary taxonomy code is 101YP2500X with license number LC4227 (MD). The provider is registered as an individual and his NPI record was last updated 8 years ago.

NPI
1083028088
Provider Name
MR. DAVID ANDREW DUMMER
Gender
Male
Entity Type
Individual
Location Address
60 WEST ST STE 101-1888 ANNAPOLIS, MD 21401
Location Phone
(301) 677-1734
Mailing Address
PO BOX 1888 ANNAPOLIS, MD 21404
Mailing Phone
(301) 677-1734
Is Sole Proprietor?
Yes
Enumeration Date
06-17-2014
Last Update Date
04-06-2018
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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.
LC4227
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)
1101YM0800XBehavioral Health & Social Service Providers

Counselor
Mental Health

8582 (MA)

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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 1083028088, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
3
Unchanged
Pos 5
0
Doubled → 0
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
0
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
8
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 8 → 16 → 7 0 → 0 8 → 16 → 7 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 1 + 6 + 3 + 0 + 2 + 1 + 6 + 0 + 1 + 6 + 24 = 52

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1083028088.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1083028088, enumerated as an "individual" on June 17, 2014.

The provider is located at 60 WEST ST STE 101-1888 ANNAPOLIS, MD 21401 and the phone number is (301) 677-1734.

Counselor with taxonomy code 101YP2500X and a focus in Professional.