ADAM WILSON ARMSTRONG DO
NPI 1649248329
Internal Medicine - Infectious Disease in Bethesda, MD

NPI Status: Active since March 09, 2006

Contact Information

WALTER REED NATIONAL MILITARY CTR
8901 WISCONSIN AVE
BETHESDA, MD
ZIP 20889
Phone: (301) 295-6400

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  • Individual
  • Male
  • Internal Medicine
  • Infectious Disease

About ADAM ARMSTRONG

This page provides the complete NPI Profile along with additional information for Adam Armstrong, an internist established in Bethesda, Maryland with a medical specialization in Internal Medicine, focusing in infectious disease . The healthcare provider is registered in the NPI registry with number 1649248329 assigned on March 2006. The practitioner's primary taxonomy code is 207RI0200X with license number 102050114 (VA). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1649248329
Provider Name
ADAM WILSON ARMSTRONG DO
Gender
Male
Entity Type
Individual
Location Address
WALTER REED NATIONAL MILITARY CTR 8901 WISCONSIN AVE BETHESDA, MD 20889
Location Phone
(301) 295-6400
Mailing Address
WALTER REED NATIONAL MILITARY CTR 8901 WISCONSIN AVE BETHESDA, MD 20889
Mailing Phone
(301) 295-6400
Is Sole Proprietor?
No
Enumeration Date
03-09-2006
Last Update Date
05-02-2012
Code Navigator

An internist like Adam Armstrong is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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

Internal Medicine Infectious Disease

Taxonomy Code
207RI0200X
Type
Allopathic & Osteopathic Physicians
License No.
102050114
License State
VA
Taxonomy Description
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

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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 1649248329, 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 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
6
Unchanged
Pos 3
4
Doubled → 8
Pos 4
9
Unchanged
Pos 5
2
Doubled → 4
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
3
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 4 → 8 2 → 4 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 + 6 + 8 + 9 + 4 + 4 + 1 + 6 + 3 + 4 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1649248329.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Dentist (General Practice)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE.
BETHESDA, MD 20889
Physical Therapist
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE
BETHESDA, MD 20889
Registered Nurse (Women's Health Care, Ambulatory)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Internal Medicine
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Advanced Practice Midwife
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Social Worker (Clinical)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONCIN AVENUE
BETHESDA, MD 20889
Nurse Practitioner (Adult Health)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE
BETHESDA, MD 20889
Pharmacist (Pharmacotherapy)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE
BETHESDA, MD 20889
Pharmacist
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE
BETHESDA, MD 20889
Pharmacist
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Dentist (General Practice)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE BLDG 2 ROOM 2661
BETHESDA, MD 20889
Social Worker (Clinical)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Audiologist
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE
BETHESDA, MD 20889
Dietitian, Registered
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Social Worker (Clinical)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE BLDG 62 RM 3055
BETHESDA, MD 20889
Pharmacist
WALTER REED NATIONAL MILITARY CTR, DEPARTMENT OF PHARMACY
BETHESDA, MD 20889
Pharmacist
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE
BETHESDA, MD 20889
Internal Medicine (Geriatric Medicine)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE
BETHESDA, MD 20889
Pediatrics
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVENUE, BUILDING 19
BETHESDA, MD 20889
Dentist (General Practice)
WALTER REED NATIONAL MILITARY CTR, 8901 WISCONSIN AVE
BETHESDA, MD 20889

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649248329, enumerated as an "individual" on March 09, 2006.

The provider is located at WALTER REED NATIONAL MILITARY CTR 8901 WISCONSIN AVE BETHESDA, MD 20889 and the phone number is (301) 295-6400.

Internal Medicine with taxonomy code 207RI0200X and a focus in Infectious Disease.