Ralph Maroun, MD - Medicare Internal Medicine in Reston, VA

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Ralph Maroun, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Reston, Virginia. He graduated from medical school in 2012 and has 14 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Statcare Outpatient Llc, Statcare Inpatient Llc, Methodist Medical Center, Parkwest Medical Center and his current practice location is 1850 Town Center Pkwy, Reston, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 689-9000.

Ralph Maroun is licensed to practice in Tennessee (license number 64455) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1982157608.

Contact Information

Ralph Maroun, MD
1850 Town Center Pkwy,
Reston, VA 20190-3204
(703) 689-9000
Not Available

Map and Direction




Physician's Profile

Full NameRalph Maroun
GenderMale
SpecialityInternal Medicine
Experience14 Years
Location1850 Town Center Pkwy, Reston, Virginia
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ralph Maroun graduated from medical school in 2012
  NPI Data:
  • NPI Number: 1982157608
  • Provider Enumeration Date: 07/29/2016
  • Last Update Date: 02/05/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 9335478056
  • Enrollment ID: I20220729001633

Medical Identifiers

Medical identifiers for Ralph Maroun such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1982157608NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease 64455 (Tennessee)Primary
207RC0200XInternal Medicine - Critical Care Medicine 0101287781 (Virginia)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Methodist Medical Center Of Oak RidgeOak ridge, TNHospital
Parkwest Medical CenterKnoxville, TNHospital
Fort Sanders Regional Medical CenterKnoxville, TNHospital
Fort Loudoun Medical CenterLenoir city, TNHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Statcare Outpatient Llc226470405535
Statcare Inpatient Llc5496025074113
Methodist Medical Center70128128606
Parkwest Medical Center852796541758

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Ralph Maroun allows following entities to bill medicare on his behalf.
Entity NameParkwest Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396739165
PECOS PAC ID: 8527965417
Enrollment ID: O20040429000423
Entity NameMethodist Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700870672
PECOS PAC ID: 7012812860
Enrollment ID: O20050131000095
Entity NameStatcare Inpatient Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477086981
PECOS PAC ID: 5496025074
Enrollment ID: O20170714002608
Entity NameStatcare Outpatient Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134653892
PECOS PAC ID: 2264704055
Enrollment ID: O20170814001441

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Ralph Maroun is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Ralph Maroun, MD
Po Box 207830,
Dallas, TX 75320-7830

Ph: (888) 412-2649		Ralph Maroun, MD
1850 Town Center Pkwy,
Reston, VA 20190-3204

Ph: (703) 689-9000

Reviews and Comments


Internal Medicine Doctors in Reston, VA

Chun Hong, MD PHD
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Phone: 703-435-5858    Fax: 703-435-5877
Lavanya Nutankalva, MD
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Dr. Lo An T Nguyen, MD
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Dr. Seth Nathaniel Meltzer, M.D.
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Scott B Chelemer, M.D.
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Practice Location: 1768 Business Center Dr Ste 100, Reston, VA 20190
Phone: 800-762-9244    Fax: 786-672-6006
James William Cleveland, M.D.
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Practice Location: 1850 Town Center Pkwy # 314, Reston, VA 20190
Phone: 703-481-5212    
Amy J Irwin, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 1860 Town Center Dr Ste 460, Reston, VA 20190
Phone: 703-437-6535    Fax: 703-437-6549

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.