DR. JOHN ALVA SIMPSON MD
NPI 1417049347
Allergy & Immunology in Falls Church, VA

NPI Status: Active since September 28, 2006

Contact Information

6305 CASTLE PL
SUITE 2D
FALLS CHURCH, VA
ZIP 22044
Phone: (703) 534-5500
Fax: (703) 534-4838

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  • Individual
  • Male
  • Allergy & Immunology
  • PECOS Enrolled

About JOHN SIMPSON

This page provides the complete NPI Profile along with additional information for John Simpson, a provider established in Falls Church, Virginia with a medical specialization in Allergy & Immunology. The healthcare provider is registered in the NPI registry with number 1417049347 assigned on September 2006. The practitioner's primary taxonomy code is 207K00000X with license number 0101045826 (VA). The provider is registered as an individual and his NPI record was last updated 11 years ago.

NPI
1417049347
Provider Name
DR. JOHN ALVA SIMPSON MD
Gender
Male
Entity Type
Individual
Location Address
6305 CASTLE PL SUITE 2D FALLS CHURCH, VA 22044
Location Phone
(703) 534-5500
Location Fax
(703) 534-4838
Mailing Address
PO BOX 1987 SKYLAND, NC 28776
Mailing Phone
(828) 575-2644
Mailing Fax
(703) 534-4838
Is Sole Proprietor?
No
Enumeration Date
09-28-2006
Last Update Date
11-16-2015
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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
License No.
0101045826
License State
VA
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.

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.

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
274694OTHER (01)ANTHEM
2307287OTHER (01)AETNA
E96022MEDICARE UPIN (02) 
684263ZKRDOTHER (01)VAMEDICARE PTAN

Medicare Participation & PECOS Enrollment Status

John Simpson 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: Durable Medical Equipment (DME) 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

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: No

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): No

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 47 times for 37 patients

Established patient office or other outpatient visit, 30-39 minutes

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 44 times for 34 patients

New patient office or other outpatient visit, 45-59 minutes

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

This service was performed 21 times for 21 patients

Professional service for multiple injections of allergen

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

This service was performed 305 times for 45 patients

Professional service for preparation and provision of 1 or more antigens

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

This service was performed 1,362 times for 39 patients

Test for allergy using allergenic extract

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

This service was performed 954 times for 14 patients

Test to measure expiratory airflow and volume

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

This service was performed 36 times for 20 patients

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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 1417049347, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 2 + 7 + 0 + 4 + 1 + 8 + 3 + 8 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1417049347.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Chiropractor
6305 CASTLE PL, SUITE 1D
FALLS CHURCH, VA 22044
Family Medicine
6305 CASTLE PL, SUITE 1D
FALLS CHURCH, VA 22044
Clinic/Center (Primary Care)
6305 CASTLE PL, SUITE 1D
FALLS CHURCH, VA 22044
Durable Medical Equipment & Medical Supplies
6305 CASTLE PL
FALLS CHURCH, VA 22044
Clinic/Center
6305 CASTLE PL, SUITE 1-A
FALLS CHURCH, VA 22044
Allergy & Immunology
6305 CASTLE PL, SUITE 2D
FALLS CHURCH, VA 22044
Nurse Practitioner (Family)
6305 CASTLE PL, SUITE 2D
FALLS CHURCH, VA 22044
Internal Medicine (Addiction Medicine)
6305 CASTLE PL, SUITE 3C
FALLS CHURCH, VA 22044

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1417049347, enumerated as an "individual" on September 28, 2006.

The provider is located at 6305 CASTLE PL SUITE 2D FALLS CHURCH, VA 22044 and the phone number is (703) 534-5500.

Allergy & Immunology with taxonomy code 207K00000X.

The provider might be accepting Accepts: Anthem Blue Cross, Medicare, Medicaid and Aetna. Please consult your insurance carrier or call the provider to verify.