RALPH MAROUN MD
NPI 1982157608
Internal Medicine - Pulmonary Disease in Reston, VA
NPI Status: Active since July 29, 2016
Contact Information
1850 TOWN CENTER PKWY
RESTON, VA
ZIP 20190
Phone: (703) 689-9000
- Individual
- Male
- Years of Experience 14
- Internal Medicine
- Pulmonary Disease
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About RALPH MAROUN
This page provides the complete NPI Profile along with additional information for Ralph Maroun, an internist established in Reston, Virginia with a medical specialization in Internal Medicine, focusing in pulmonary disease and more than 14 years of experience. The healthcare provider is registered in the NPI registry with number 1982157608 assigned on July 2016. The practitioner's primary taxonomy code is 207RP1001X with license number 64455 (TN). The provider is registered as an individual and his NPI record was last updated February 2026.
- NPI
- 1982157608
- Provider Name
- RALPH MAROUN MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1850 TOWN CENTER PKWY RESTON, VA 20190
- Location Phone
- (703) 689-9000
- Mailing Address
- PO BOX 207830 DALLAS, TX 75320
- Mailing Phone
- (888) 412-2649
- Medical School Name
- OTHER
- Graduation Year
- 2012
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-29-2016
- Last Update Date
- 02-05-2026
- Code Navigator
An internist like Ralph Maroun 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
Secondary Locations
- 6473 Kingston Pike Ste 6473
Knoxville, TN 37919
(888) 412-2649
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 Pulmonary Disease
- Taxonomy Code
- 207RP1001X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 64455
- License State
- TN
- Taxonomy Description
- An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
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) |
|---|---|---|---|---|
| 1 | 207RC0200X | Allopathic & Osteopathic Physicians | Internal Medicine | 0101287781 (VA) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Choice Bronze HSA (QualChoice) - POS
- Complete Gold - PPO
- Complete Gold + Vision + Adult Dental - PPO
- Connected Silver - PPO
- Connected Silver (QualChoice) - POS
- Connected Silver (QualChoice) + Vision + Adult Dental - POS
- Connected Silver (QualChoiceLife) - PPO
- Connected Silver (QualChoiceLife) + Vision + Adult Dental - PPO
- Connected Silver + Vision + Adult Dental - PPO
- Elite Bronze - PPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Complete Silver - EPO
- Complete Silver + Vision + Adult Dental - EPO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Everyday Gold - EPO
- Everyday Gold + Vision + Adult Dental - EPO
- Choice Bronze HSA - HMO
- Choice Bronze HSA + Vision + Adult Dental - HMO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Everyday Bronze - HMO
- Everyday Bronze + Vision + Adult Dental - HMO
- Everyday Gold - HMO
- Everyday Gold + Vision + Adult Dental - HMO
- Standard Expanded Bronze - HMO
- Standard Expanded Bronze + Vision + Adult Dental - HMO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Elite Gold - EPO
- Elite Gold + Vision + Adult Dental - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Clear Silver with $0 Insulin Options - HMO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Complete Gold with Atrium Health - HMO
- Complete Gold with Atrium Health + Vision + Adult Dental - HMO
- Elite Bronze - HMO
- Elite Bronze + Vision + Adult Dental - HMO
- Elite Bronze with Atrium Health - HMO
- Elite Bronze with Atrium Health + Vision + Adult Dental - HMO
- Enhanced Asthma/COPD Care Silver with $0 Drug Options - HMO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Elite Gold - EPO
- Elite Gold + Vision + Adult Dental - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Everyday Gold - EPO
- Everyday Gold + Vision + Adult Dental - EPO
- BlueCross B16S $50 PCP Copay + $0 virtual care from Teladoc Health� - EPO
- BlueCross G08S $30 PCP Copay + $0 virtual care from Teladoc Health � - EPO
- BlueCross S26S $40 PCP Copay + $0 virtual care from Teladoc Health� - EPO
- UHC Bronze Copay Focus (Virtual Urgent Care, No Referrals) - EPO
- UHC Bronze Copay Focus + (Virtual Urgent Care, Dental + Vision, No Referrals) - EPO
- UHC Bronze Essential (No Referrals) - EPO
- UHC Bronze Standard (No Referrals) - EPO
- UHC Gold Advantage (Virtual Urgent Care, No Referrals) - EPO
- UHC Gold Advantage + (Virtual Urgent Care, Dental + Vision, No Referrals) - EPO
- UHC Gold Copay Focus (Virtual Urgent Care, No Referrals) - EPO
- UHC Gold Standard (No Referrals) - EPO
- UHC Silver Advantage (Virtual Urgent Care, No Referrals) - EPO
- UHC Silver Advantage + (Virtual Urgent Care, Dental + Vision, No Referrals) - EPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Ralph Maroun 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.
Ralph Maroun 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: 9335478056
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: I20220729001633
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
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Critical care, first 30-74 minutes
Follow-up hospital inpatient care per day, typically 25 minutes
Follow-up hospital inpatient care per day, typically 35 minutes
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
This service was performed 69 times for 35 patientsFollow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
This service was performed 48 times for 25 patientsFollow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
This service was performed 34 times for 18 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $36.96 for a new patient copayment and $28.43 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 20190 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.
Find Provider Hospital Affiliations - Privileges
Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.
Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Ralph Maroun is affiliated with the following medical facilities:
| Hospital Name | Address | Phone | Hospital Type | Overall Rating |
|---|---|---|---|---|
| ROANE MEDICAL CENTER | 8045 ROANE MEDICAL CENTER DRIVE HARRIMAN, TN 37748 | (865) 316-1000 | Acute Care Hospitals | |
| METHODIST MEDICAL CENTER OF OAK RIDGE | 990 OAK RIDGE TURNPIKE BOX 529 OAK RIDGE, TN 37830 | (865) 835-1000 | Acute Care Hospitals | |
| FORT LOUDOUN MEDICAL CENTER | 550 FORT LOUDON MEDICAL CENTER DR LENOIR CITY, TN 37772 | (865) 271-6000 | Acute Care Hospitals | |
| FORT SANDERS REGIONAL MEDICAL CENTER | 1901 W CLINCH AVE KNOXVILLE, TN 37916 | (865) 541-1101 | Acute Care Hospitals | |
| PARKWEST MEDICAL CENTER | 9352 PARK WEST BLVD KNOXVILLE, TN 37923 | (865) 970-9800 | Acute Care Hospitals |
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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 1982157608, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 62 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
RESTON, VA 20190
RESTON, VA 20190
RESTON, VA 20190
RESTON, VA 20190
RESTON, VA 20190
RESTON, VA 20190
RESTON, VA 20190
RESTON, VA 20190
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1982157608, enumerated as an "individual" on July 29, 2016.
The provider is located at 1850 TOWN CENTER PKWY RESTON, VA 20190 and the phone number is (703) 689-9000.
Internal Medicine with taxonomy code 207RP1001X and a focus in Pulmonary Disease.
The provider might be accepting Accepts: Ambetter from Arkansas Health & Wellness, Ambetter. Please consult your insurance carrier or call the provider to verify.
Ralph Maroun is affiliated with: ROANE MEDICAL CENTER, METHODIST MEDICAL CENTER OF OAK RIDGE, FORT LOUDOUN MEDICAL CENTER, FORT SANDERS REGIONAL MEDICAL CENTER and PARKWEST MEDICAL CENTER.