JOHN KEYLOUN M.D.
NPI 1760914121
Surgery in Washington, DC

Active since April 03, 2017PECOS EnrolledAccepts Medicare Assignment
3800 RESERVOIR RD NW, WASHINGTON, DC 20007(202) 444-1233(202) 444-7422 Get Directions Write a Review

NPPES record last updated: December 22, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Dec 22, 2025, Jun 3, 2024 (2 updates tracked since 2024).

About John Keyloun M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN KEYLOUN M.D. (NPI 1760914121) is an individual surgery provider in Washington, District Of Columbia, licensed in District Of Columbia (MD500003242) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Washington, and is a graduate of Georgetown University School Of Medicine (2017).Information from the official NPPES registry record, last updated December 22, 2025.

NPPES Registry Identity

NPI1760914121
Entity TypeIndividualMale
Provider Legal NameJOHN KEYLOUNCredential: M.D.
Location Address3800 RESERVOIR RD NWWashington, DC 20007-2113
Mailing Address6201 Greenleigh Ave Fl 2Middle River, MD 21220-2004 · (410) 933-0000 · Fax (410) 500-4266
Fax(202) 444-7422
Sole ProprietorNo
Medical School CMSGeorgetown University School Of MedicineGraduated 2017
Enumeration DateApril 3, 2017
Last NPPES UpdateDecember 22, 20252 updates tracked since enumeration
NPPES CertifiedDecember 22, 2025
NPI 1760914121 is a valid, active identifier and passes the ISO check-digit test. How NPI validation works

Primary Specialty

Surgery

Taxonomy 208600000X · Allopathic & Osteopathic Physicians

Licensed in DC · MD500003242

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the… Show more

3800 RESERVOIR RD NW, Washington, DC 20007

Also on File with NPPES

Secondary Location1
5215 Loughboro Rd NW
Washington, DC 20016-2618
Phone (202) 895-1440 · Fax (202) 895-1448

Medicare Participation & PECOS Enrollment Status

John Keyloun is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

John Keyloun 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

  • PECOS PAC ID: 6406390509

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20240701000941

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • 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 typical physician office visit costs for Medicare beneficiaries in this area are: $25.07 for a new patient copayment and $20.16 for an established patient copayment.

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 20007 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $100.31
  • Minimum New Patient Price $65.18
  • Maximum New Patient Price $194.86
  • Average New Patient Copayment $25.07
  • 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 99213

  • Average Established Patient Price $80.66
  • Minimum Established Patient Price $21.4
  • Maximum Established Patient Price $158.88
  • Average Established Patient Copayment $20.16
  • 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.

Reviews for JOHN KEYLOUN M.D.

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Other Providers at the Same Location


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

Urology
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Pediatrics (Pediatric Gastroenterology)
3800 RESERVOIR RD NW
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Audiologist
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Pediatrics (Pediatric Endocrinology)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Internal Medicine (Allergy & Immunology)
3800 RESERVOIR RD NW, RM B-105 LOWER LEVEL KOBER-COGAN BLDG, GEORGETOWN UNIV
WASHINGTON, DC 20007
Nurse Anesthetist, Certified Registered
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Obstetrics & Gynecology
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Obstetrics & Gynecology
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Internal Medicine
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Pediatrics (Pediatric Critical Care Medicine)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Internal Medicine (Hematology & Oncology)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Radiology (Vascular & Interventional Radiology)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Pediatrics
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Radiology (Body Imaging)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Pediatrics (Pediatric Hematology-Oncology)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Internal Medicine (Nephrology)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Obstetrics & Gynecology (Maternal & Fetal Medicine)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Dermatology
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Radiology (Body Imaging)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007
Surgery (Plastic and Reconstructive Surgery)
3800 RESERVOIR RD NW
WASHINGTON, DC 20007

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1760914121, enumerated as an "individual" on April 03, 2017.

The provider is located at 3800 RESERVOIR RD NW WASHINGTON, DC 20007 and the phone number is (202) 444-1233.

Surgery with taxonomy code 208600000X.