DR. HELBING ALLERGY & ASTHMA ASSOCIATES, LTD.
NPI 1720140155
Allergy & Immunology in Annandale, VA

NPI Status: Active since December 14, 2006

Contact Information

4534A JOHN MARR DR
ANNANDALE, VA
ZIP 22003
Phone: (703) 750-9450
Fax: (703) 750-3191

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  • Organization
  • Allergy & Immunology

About DR. HELBING ALLERGY & ASTHMA ASSOCIATES, LTD.

This page provides the complete NPI Profile along with additional information for Dr. Helbing Allergy & Asthma Associates, Ltd., a provider established in Annandale, Virginia operating as a Allergy & Immunology. The healthcare provider is registered in the NPI registry with number 1720140155 assigned on December 2006. The practitioner's primary taxonomy code is 207K00000X. The provider is registered as an organization and their NPI record was last updated 3 years ago. 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 provider's former legal business name is Drs. Helbing & Associates, Ltd.. The authorized official of this NPI record is Mrs. Barbara A. Eskandary (Office Manager)

NPI
1720140155
Provider Legal Name
DR. HELBING ALLERGY & ASTHMA ASSOCIATES, LTD.
Other Organization Name
DRS. HELBING & ASSOCIATES, LTD.
Other Name Type
Former Legal Business Name (4)
Entity Type
Organization
Location Address
4534A JOHN MARR DR ANNANDALE, VA 22003
Location Phone
(703) 750-9450
Location Fax
(703) 750-3191
Mailing Address
4534A JOHN MARR DR ANNANDALE, VA 22003
Mailing Phone
(703) 750-9450
Mailing Fax
(703) 750-3191
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
12-14-2006
Last Update Date
03-16-2023
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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

Allergy & Immunology

Taxonomy Code
207K00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Group Taxonomy 193400000X MULTIPLE 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

MRS. BARBARA A. ESKANDARY

Authorized Official Title
OFFICE MANAGER
Authorized Official Phone
(703) 750-9450

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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 1720140155, we treat the final digit (5) 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 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 5).

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
7
Unchanged
Pos 3
2
Doubled → 4
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
4
Unchanged
Pos 7
0
Doubled → 0
Pos 8
1
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
5
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 2 → 4 1 → 2 0 → 0 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 2 + 4 + 0 + 1 + 1 + 0 + 24 = 45

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

The next multiple of ten after 45 is 50. The difference is the calculated check digit.

50 - 45 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1720140155.

Other Providers at the Same Location


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

Allergy & Immunology
4534A JOHN MARR DR
ANNANDALE, VA 22003

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720140155, enumerated as an "organization" on December 14, 2006.

The provider is located at 4534A JOHN MARR DR ANNANDALE, VA 22003 and the phone number is (703) 750-9450.

Allergy & Immunology with taxonomy code 207K00000X.