MR. WILLIAM R FREDERICK MD
NPI 1932124682
Internal Medicine in Washington, DC

NPI Status: Active since July 13, 2006

Contact Information

106 IRVING ST NW
SUITE 304
WASHINGTON, DC
ZIP 20010
Phone: (202) 291-6423
Fax: (202) 291-0691

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  • Individual
  • Male
  • Internal Medicine

About WILLIAM FREDERICK

This page provides the complete NPI Profile along with additional information for William Frederick, an internist established in Washington, District Of Columbia with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1932124682 assigned on July 2006. The practitioner's primary taxonomy code is 207R00000X with license number 4502 (DC). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1932124682
Provider Name
MR. WILLIAM R FREDERICK MD
Gender
Male
Entity Type
Individual
Location Address
106 IRVING ST NW SUITE 304 WASHINGTON, DC 20010
Location Phone
(202) 291-6423
Location Fax
(202) 291-0691
Mailing Address
106 IRVING ST NW SUITE 304 WASHINGTON, DC 20010
Mailing Phone
(202) 291-6423
Mailing Fax
(202) 291-0691
Is Sole Proprietor?
Yes
Enumeration Date
07-13-2006
Last Update Date
12-26-2007
Code Navigator

An internist like William Frederick 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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
4502
License State
DC
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

0101051734 (VA)
2207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

D0007970 (MD)

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.

*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
C88650MEDICARE UPIN (02) 
6235OTHER (01)DCBLUE CROSS BLUE SHIELD
408644W87MEDICARE PIN (08)DC 
413758OTHER (01)MDCAREFIRST BC BS OF MD
02214300MEDICAID (05)DC 

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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 1932124682, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
3
Doubled → 6
Pos 4
2
Unchanged
Pos 5
1
Doubled → 2
Pos 6
2
Unchanged
Pos 7
4
Doubled → 8
Pos 8
6
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
2
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 3 → 6 1 → 2 4 → 8 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 6 + 2 + 2 + 2 + 8 + 6 + 1 + 6 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1932124682.

Other Providers at the Same Location


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

Ophthalmology
106 IRVING ST NW, SUITE 321
WASHINGTON, DC 20010
Internal Medicine
106 IRVING ST NW, SUITE 421-SOUTH
WASHINGTON, DC 20010
Internal Medicine (Cardiovascular Disease)
106 IRVING ST NW, SUITE 1500 NORTH TOWER
WASHINGTON, DC 20010
Midwife
106 IRVING ST NW, SUITE 4700 NORTH
WASHINGTON, DC 20010
Internal Medicine (Nephrology)
106 IRVING ST NW, STE 418
WASHINGTON, DC 20010
Surgery (Surgical Oncology)
106 IRVING ST NW, SUITE N-3900
WASHINGTON, DC 20010
Surgery (Surgical Oncology)
106 IRVING ST NW, SUITE N-3900
WASHINGTON, DC 20010
Internal Medicine (Nephrology)
106 IRVING ST NW, SUITE 418
WASHINGTON, DC 20010
Internal Medicine (Nephrology)
106 IRVING ST NW, SUITE 418
WASHINGTON, DC 20010
Internal Medicine (Gastroenterology)
106 IRVING ST NW, SUITE 2000
WASHINGTON, DC 20010
Specialist
106 IRVING ST NW, SUITE 4400 NORTH
WASHINGTON, DC 20010
Obstetrics & Gynecology
106 IRVING ST NW, SUITE 4400 NORTH
WASHINGTON, DC 20010
Podiatrist
106 IRVING ST NW, SUITE 402
WASHINGTON, DC 20010
Podiatrist
106 IRVING ST NW, SUITE 402
WASHINGTON, DC 20010
Internal Medicine
106 IRVING ST NW, 4200
WASHINGTON, DC 20010
Obstetrics & Gynecology
106 IRVING ST NW
WASHINGTON, DC 20010
Obstetrics & Gynecology (Maternal & Fetal Medicine)
106 IRVING ST NW, SUITE 3800N
WASHINGTON, DC 20010
Obstetrics & Gynecology
106 IRVING ST NW, SUITE 4400 NORTH
WASHINGTON, DC 20010
Surgery (Surgical Oncology)
106 IRVING ST NW, SUITE N-3900
WASHINGTON, DC 20010
Internal Medicine (Infectious Disease)
106 IRVING ST NW, SUITE NUMBER 208
WASHINGTON, DC 20010

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1932124682, enumerated as an "individual" on July 13, 2006.

The provider is located at 106 IRVING ST NW SUITE 304 WASHINGTON, DC 20010 and the phone number is (202) 291-6423.

Internal Medicine with taxonomy code 207R00000X.

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