DGG MEDICAL, INC
NPI 1831648229
Psychiatry & Neurology - Psychiatry in Williamsburg, VA

NPI Status: Active since September 26, 2016

Contact Information

333 MCLAWS CIR STE 3
WILLIAMSBURG, VA
ZIP 23185
Phone: (757) 775-1449
Fax: (757) 229-3435

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  • Organization
  • Psychiatry & Neurology
  • Psychiatry

About DGG MEDICAL, INC

This page provides the complete NPI Profile along with additional information for Dgg Medical, Inc, a provider established in Williamsburg, Virginia operating as a Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1831648229 assigned on September 2016. The practitioner's primary taxonomy code is 2084P0800X with license number 0101228372 (VA). The provider is registered as an organization and their NPI record was last updated December 2025. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Deborah Giorgi-guarnieri (President)

NPI
1831648229
Provider Name
DGG MEDICAL, INC
Entity Type
Organization
Location Address
333 MCLAWS CIR STE 3 WILLIAMSBURG, VA 23185
Location Phone
(757) 775-1449
Location Fax
(757) 229-3435
Mailing Address
333 MCLAWS CIR STE 3 WILLIAMSBURG, VA 23185
Mailing Phone
(757) 775-1449
Mailing Fax
(757) 229-3435
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-26-2016
Last Update Date
12-19-2025
Code Navigator

A psychiatrist like Dgg Medical, Inc are primary mental health physicians diagnose and treat mental illnesses through psychotherapy, psychoanalysis, hospitalization and medication. Psychiatrist help patients find solutions through changes in their behavioral patterns, explorations of experiences, group and family therapy.

Location Map

Secondary Locations

  • 708 Mobjack Pl
    Newport News, VA 23606
    (757) 873-1958

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

Psychiatry & Neurology Psychiatry

Taxonomy Code
2084P0800X
Type
Allopathic & Osteopathic Physicians
License No.
0101228372
License State
VA
Taxonomy Description
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DEBORAH GIORGI-GUARNIERI

Authorized Official Title
PRESIDENT
Authorized Official Phone
(757) 775-1449

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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 1831648229, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
8
Unchanged
Pos 3
3
Doubled → 6
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
2
Unchanged
Pos 9
2
Doubled → 4
Check
9
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 3 → 6 6 → 12 → 3 8 → 16 → 7 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 6 + 1 + 1 + 2 + 4 + 1 + 6 + 2 + 4 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1831648229.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Psychiatry & Neurology (Forensic Psychiatry)
333 MCLAWS CIR STE 3
WILLIAMSBURG, VA 23185

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1831648229, enumerated as an "organization" on September 26, 2016.

The provider is located at 333 MCLAWS CIR STE 3 WILLIAMSBURG, VA 23185 and the phone number is (757) 775-1449.

Psychiatry & Neurology with taxonomy code 2084P0800X and a focus in Psychiatry.