DR. WINSTON RAPHAEL FREDERICK MD
NPI 1720100340
Internal Medicine - Infectious Disease in Washington, DC

NPI Status: Active since April 04, 2007

Contact Information

1160 VARNUM ST NE
DEPAUL BLDG SUITE 016
WASHINGTON, DC
ZIP 20017
Phone: (202) 526-6442
Fax: (202) 526-5035

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  • Individual
  • Male
  • Internal Medicine
  • Infectious Disease
  • PECOS Enrolled
  • Opted-Out Medicare
  • CLIA Number: 09D0645032
  • CLIA Cert. Type: Hospital
  • CLIA Exp. Date: 11-07-2026

About WINSTON FREDERICK

This page provides the complete NPI Profile along with additional information for Winston Frederick, an internist established in Washington, District Of Columbia with a medical specialization in Internal Medicine, focusing in infectious disease . The healthcare provider is registered in the NPI registry with number 1720100340 assigned on April 2007. The practitioner's primary taxonomy code is 207RI0200X with license number MD14686 (DC). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1720100340
Provider Name
DR. WINSTON RAPHAEL FREDERICK MD
Gender
Male
Entity Type
Individual
Location Address
1160 VARNUM ST NE DEPAUL BLDG SUITE 016 WASHINGTON, DC 20017
Location Phone
(202) 526-6442
Location Fax
(202) 526-5035
Mailing Address
PO BOX 644 ROCKVILLE, MD 20848
Mailing Phone
(240) 899-0401
Mailing Fax
(202) 526-5035
Is Sole Proprietor?
No
Enumeration Date
04-04-2007
Last Update Date
07-08-2007
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An internist like Winston 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.

The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Winston Frederick opted out of Medicare effective on 03-08-2017 until 03-08-2027. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare but is permitted to order and refer services to other healthcare providers.

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.
MD14686
License State
DC
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.

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.

*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
012342H13MEDICARE ID-TYPE UNSPECIFIED (04) 
C87931MEDICARE UPIN (02) 

Medicare Participation & PECOS Enrollment Status

Winston Frederick 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: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) 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

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 03-08-2017

  • Opt-Out End Date: 03-08-2027

  • Eligible to Order and Refer? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

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

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 20017 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $147.85
  • Minimum New Patient Price $65.18
  • Maximum New Patient Price $194.86
  • Average New Patient Copayment $36.96
  • Minimum New Patient Copayment $16.29
  • Maximum New Patient Copayment $48.71

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $113.72
  • Minimum Established Patient Price $21.4
  • Maximum Established Patient Price $158.88
  • Average Established Patient Copayment $28.43
  • Minimum Established Patient Copayment $5.35
  • Maximum Established Patient Copayment $39.72

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
09D0645032
Facility Type
Hospital
Certificate Effective Date
November 08, 2024
Certificate Expiration Date
November 07, 2026
Laboratory Director
DR. WINSTON R. FREDERICK
Certificate Type
Certificate for Provider-Performed Microscopy Procedures (PPMP)
Certificate Type Description
This CLIA certificate is issued to Winston Frederick in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.

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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 1720100340, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).

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
0
Unchanged
Pos 7
0
Doubled → 0
Pos 8
3
Unchanged
Pos 9
4
Doubled → 8
Check
0
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 4 → 8

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 + 0 + 0 + 3 + 8 + 24 = 50

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

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

50 - 50 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1720100340.

Other Providers at the Same Location


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

Orthopaedic Surgery
1160 VARNUM ST NE, 312
WASHINGTON, DC 20017
Orthopaedic Surgery
1160 VARNUM ST NE, SUITE 312
WASHINGTON, DC 20017
Surgery
1160 VARNUM ST NE, SUITE 300-B
WASHINGTON, DC 20017
Internal Medicine (Cardiovascular Disease)
1160 VARNUM ST NE, #100
WASHINGTON, DC 20017
Internal Medicine (Gastroenterology)
1160 VARNUM ST NE, #218
WASHINGTON, DC 20017
Allergy & Immunology
1160 VARNUM ST NE, SUITE008
WASHINGTON, DC 20017
Internal Medicine
1160 VARNUM ST NE, SUITE 008
WASHINGTON, DC 20017
Psychiatry & Neurology (Neurology)
1160 VARNUM ST NE, SUITE 204
WASHINGTON, DC 20017
Internal Medicine (Gastroenterology)
1160 VARNUM ST NE, 311
WASHINGTON, DC 20017
Internal Medicine (Gastroenterology)
1160 VARNUM ST NE, 311
WASHINGTON, DC 20017
Internal Medicine
1160 VARNUM ST NE, SUITE 317
WASHINGTON, DC 20017
Family Medicine (Geriatric Medicine)
1160 VARNUM ST NE
WASHINGTON, DC 20017
Nurse Practitioner (Gerontology)
1160 VARNUM ST NE
WASHINGTON, DC 20017
Podiatrist (Foot Surgery)
1160 VARNUM ST NE, 012
WASHINGTON, DC 20017
Internal Medicine (Geriatric Medicine)
1160 VARNUM ST NE, #311
WASHINGTON, DC 20017
Internal Medicine (Cardiovascular Disease)
1160 VARNUM ST NE, SUITE 314
WASHINGTON, DC 20017
Internal Medicine (Pulmonary Disease)
1160 VARNUM ST NE, SUITE 214
WASHINGTON, DC 20017
Internal Medicine (Nephrology)
1160 VARNUM ST NE, SUITE 16
WASHINGTON, DC 20017
Internal Medicine (Pulmonary Disease)
1160 VARNUM ST NE, #214
WASHINGTON, DC 20017
Clinic/Center (Rehabilitation)
1160 VARNUM ST NE, SUITE 1008
WASHINGTON, DC 20017

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720100340, enumerated as an "individual" on April 04, 2007.

The provider is located at 1160 VARNUM ST NE DEPAUL BLDG SUITE 016 WASHINGTON, DC 20017 and the phone number is (202) 526-6442.

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

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