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GWILYM PARRY MD
NPI 1508961962
Internal Medicine in Reston, VA

Active since September 13, 2006PECOS EnrolledAccepts Medicare Assignment
1830 TOWN CENTER DR STE 207, RESTON, VA 20190(703) 435-2227(703) 435-7856 Get Directions Write a Review

NPPES record last updated: August 18, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Gwilym Parry Md NPPES

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

GWILYM PARRY MD (NPI 1508961962) is an individual internal medicine provider in Reston, Virginia, licensed in Virginia (0101041163) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Reston Hospital Center, and is a graduate of University Of Colorado School Of Medicine, Denver (1981).

NPPES Registry Identity

NPI1508961962
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameGWILYM PARRYCredential: MD
Location Address1830 TOWN CENTER DR STE 207Reston, VA 20190-3236
Mailing Address1830 Town Center Dr Ste 207Reston, VA 20190-3236 · (703) 435-2227 · Fax (703) 435-7856
Phone(703) 435-2227
Fax(703) 435-7856
Sole ProprietorNo
Medical School CMSUniversity Of Colorado School Of Medicine, DenverGraduated 1981
Enumeration DateSeptember 13, 2006
Last NPPES UpdateAugust 18, 2023
NPPES CertifiedAugust 18, 2023
✔ NPI 1508961962 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in VA · 0101041163
Definition
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.
1830 TOWN CENTER DR STE 207, Reston, VA 20190
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Other Identifiers 1

Medicaid6043518VA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gwilym Parry Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2264593276
PECOS Enrollment IDI20081210000025
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
260 services110 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
108 services108 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
42 services37 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
42 services34 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
27 services27 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
25 services25 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Reston Hospital Center

Acute Care Hospitals · Reston, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490107
Location1850 Town Center ParkwayReston, VA 20190 · Fairfax County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20190 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GWILYM PARRY MDPC
Internal Medicine
1830 TOWN CENTER DR STE 207
RESTON, VA 20190
Fairfax County (703) 435-2227
TESSA M CHOLMONDELEY MD
Internal Medicine
1830 TOWN CENTER DR STE 207
RESTON, VA 20190
Fairfax County (703) 435-2227
TESSA CHOLMONDELEY MD PC
Internal Medicine
1830 TOWN CENTER DR STE 207
RESTON, VA 20190
Fairfax County (703) 435-2227
RESTON MEDICAL ASSOCIATES, LLC
Internal Medicine
1830 TOWN CENTER DR STE 207
RESTON, VA 20190
Fairfax County (703) 435-2227

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gwilym Parry's NPI number?

The NPI number for Gwilym Parry is 1508961962. It was assigned to this individual provider in the NPPES registry on September 13, 2006.

Where is Gwilym Parry located?

Gwilym Parry practices at 1830 Town Center Dr Ste 207, Reston, VA 20190. The listed phone number is (703) 435-2227.

What is Gwilym Parry's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gwilym Parry enrolled in Medicare?

Yes. Gwilym Parry is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Gwilym Parry affiliated with any hospitals?

According to CMS data, Gwilym Parry is affiliated with Reston Hospital Center.

When was this NPI record last updated?

The NPPES record for Gwilym Parry was last updated on August 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.