JOSEPH KENNETH MARSHALL M.D.
NPI 1912901273
Internal Medicine - Cardiovascular Disease in Arlington, VA

NPI Status: Active since June 02, 2005

Contact Information

2921 11TH ST S
ARLINGTON, VA
ZIP 22204
Phone: (703) 979-1425

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  • Individual
  • Male
  • Internal Medicine
  • Cardiovascular Disease

About JOSEPH MARSHALL

This page provides the complete NPI Profile along with additional information for Joseph Marshall, an internist established in Arlington, Virginia with a medical specialization in Internal Medicine, focusing in cardiovascular disease . The healthcare provider is registered in the NPI registry with number 1912901273 assigned on June 2005. The practitioner's primary taxonomy code is 207RC0000X with license number 0101026481 (VA). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1912901273
Provider Name
JOSEPH KENNETH MARSHALL M.D.
Gender
Male
Entity Type
Individual
Location Address
2921 11TH ST S ARLINGTON, VA 22204
Location Phone
(703) 979-1425
Mailing Address
1921 FRANKLIN AVE MC LEAN, VA 22101
Mailing Phone
(703) 533-8004
Is Sole Proprietor?
Yes
Enumeration Date
06-02-2005
Last Update Date
04-22-2010
Code Navigator

An internist like Joseph Marshall 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 Cardiovascular Disease

Taxonomy Code
207RC0000X
Type
Allopathic & Osteopathic Physicians
License No.
0101026481
License State
VA
Taxonomy Description
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

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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 1912901273, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
9
Unchanged
Pos 3
1
Doubled → 2
Pos 4
2
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
1
Doubled → 2
Pos 8
2
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
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 9 → 18 → 9 1 → 2 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 2 + 2 + 1 + 8 + 0 + 2 + 2 + 1 + 4 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1912901273.

Other Providers at the Same Location


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

Dentist (General Practice)
2921 11TH ST S
ARLINGTON, VA 22204
Pharmacist
2921 11TH ST S
ARLINGTON, VA 22204
Internal Medicine
2921 11TH ST S
ARLINGTON, VA 22204
Nurse Practitioner (Family)
2921 11TH ST S
ARLINGTON, VA 22204
Nurse Practitioner (Family)
2921 11TH ST S
ARLINGTON, VA 22204
Counselor (Mental Health)
2921 11TH ST S
ARLINGTON, VA 22204
Hospitalist
2921 11TH ST S
ARLINGTON, VA 22204
Dentist
2921 11TH ST S
ARLINGTON, VA 22204

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1912901273, enumerated as an "individual" on June 02, 2005.

The provider is located at 2921 11TH ST S ARLINGTON, VA 22204 and the phone number is (703) 979-1425.

Internal Medicine with taxonomy code 207RC0000X and a focus in Cardiovascular Disease.