DR. GREGORY ALAN LAW MD
NPI 1518029594
Psychiatry & Neurology - Child & Adolescent Psychiatry in Ashburn, VA

NPI Status: Active since December 15, 2006

Contact Information

20915 ASHBURN RD
SUITE 235
ASHBURN, VA
ZIP 20147
Phone: (703) 436-9941
Fax: (703) 436-9941

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Child & Adolescent Psychiatry
  • PECOS Enrolled
  • Opted-Out Medicare

About GREGORY LAW

This page provides the complete NPI Profile along with additional information for Gregory Law, a provider established in Ashburn, Virginia with a medical specialization in Psychiatry & Neurology, focusing in child & adolescent psychiatry . The healthcare provider is registered in the NPI registry with number 1518029594 assigned on December 2006. The practitioner's primary taxonomy code is 2084P0804X with license number 0101057578 (VA). The provider is registered as an individual and his NPI record was last updated 12 years ago.

NPI
1518029594
Provider Name
DR. GREGORY ALAN LAW MD
Gender
Male
Entity Type
Individual
Location Address
20915 ASHBURN RD SUITE 235 ASHBURN, VA 20147
Location Phone
(703) 436-9941
Location Fax
(703) 436-9941
Mailing Address
20915 ASHBURN RD SUITE 235 ASHBURN, VA 20147
Mailing Phone
(703) 436-9941
Mailing Fax
(703) 436-9941
Is Sole Proprietor?
Yes
Enumeration Date
12-15-2006
Last Update Date
02-03-2014
Code Navigator



The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Gregory Law opted out of Medicare effective on 05-16-2016 until 05-16-2026. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare but is permitted to order and refer services to other healthcare providers.

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

Psychiatry & Neurology Child & Adolescent Psychiatry

Taxonomy Code
2084P0804X
Type
Allopathic & Osteopathic Physicians
License No.
0101057578
License State
VA
Taxonomy Description
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

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)
12084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

0101057578 (VA)

Medicare Participation & PECOS Enrollment Status

Gregory Law 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, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

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

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 05-16-2016

  • Opt-Out End Date: 05-16-2026

  • Eligible to Order and Refer? 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): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

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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 1518029594, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

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
5
Unchanged
Pos 3
1
Doubled → 2
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
2
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
5
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
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 1 → 2 0 → 0 9 → 18 → 9 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 2 + 8 + 0 + 2 + 1 + 8 + 5 + 1 + 8 + 24 = 66

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

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1518029594.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Counselor (Professional)
20915 ASHBURN RD, SUITE 235
ASHBURN, VA 20147
Counselor (Professional)
20915 ASHBURN RD, SUITE 235
ASHBURN, VA 20147
Psychologist
20915 ASHBURN RD, #235
ASHBURN, VA 20147

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1518029594, enumerated as an "individual" on December 15, 2006.

The provider is located at 20915 ASHBURN RD SUITE 235 ASHBURN, VA 20147 and the phone number is (703) 436-9941.

Psychiatry & Neurology with taxonomy code 2084P0804X and a focus in Child & Adolescent Psychiatry.