Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

YOUSEF ZARBALIAN M.D.
NPI 1396063319
Internal Medicine - Rheumatology in Vienna, VA

Q: What is Yousef Zarbalian's NPI number?

The NPI number for Yousef Zarbalian is 1396063319. It was assigned to this individual provider in the NPPES registry on May 14, 2010.

Q: What is Yousef Zarbalian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Yousef Zarbalian was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 days 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.

Active since May 14, 2010PECOS EnrolledAccepts Medicare Assignment

124 PARK ST SE STE 205, VIENNA, VA 22180(225) 229-0325(703) 828-0255 Get Directions Write a Review

NPPES record last updated: September 15, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 15, 2026, Feb 16, 2022, Jan 8, 2020 and 3 more (6 updates tracked since 2018).

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About Yousef Zarbalian M.d. NPPES

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

YOUSEF ZARBALIAN M.D. (NPI 1396063319) is an individual rheumatology provider in Vienna, Virginia, licensed in Virginia (0101260444) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS and is a graduate of Washington University School Of Medicine (2010).

NPPES Registry Identity

NPI1396063319

Entity TypeIndividualMale

Primary Taxonomy207RR0500X

Provider Legal NameYOUSEF ZARBALIANCredential: M.D.

Location Address124 PARK ST SE STE 205Vienna, VA 22180-4654

Mailing Address124 Park St Se Ste 205Vienna, VA 22180-4654 · (703) 372-2646 · Fax (703) 828-0255

Phone(225) 229-0325

Fax(703) 828-0255

Sole ProprietorNo

Medical School CMSWashington University School Of MedicineGraduated 2010

Enumeration DateMay 14, 2010

Last NPPES UpdateSeptember 15, 20266 updates tracked since enumeration

NPPES CertifiedSeptember 15, 2026

✔ NPI 1396063319 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in VA · 0101260444

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

124 PARK ST SE STE 205, Vienna, VA 22180

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Other Identifiers 2

Other0101260444VA · State Medical License Number

OtherD0076539MD · State Medical License Number

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Yousef Zarbalian M.d. 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 ID2062640758

PECOS Enrollment IDI20160912002582

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.

Medicare Billing Reassignment

Medicare enrollment records show Yousef Zarbalian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

East-West Rheumatology, PLLC

Same address

Rheumatology

124 PARK ST SE STE 205
Vienna, VA 22180

Reassigned Medicare billing, District of Columbia enrollment

NPI 1043854938 (703) 372-2646

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 11

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.

Therapy procedure using massage, each 15 minutes 97124

This therapy involves the application of pressure to your body's soft tissues using hands. It helps alleviate pain, reduce stress, and promote relaxation. Each session lasts for 15 minutes and can be tailored to your specific needs.

188 services38 patients

Acupuncture with electrical stimulation, initial 15 minutes 97813

Acupuncture with electrical stimulation is a therapy where thin needles are inserted into specific points on your body. A mild electrical current is then passed through the needles to stimulate these points, helping to alleviate pain and promote healing. This initial session lasts 15 minutes.

168 services34 patients

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.

150 services40 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

133 services42 patients

Acupuncture with electrical stimulation, each additional 15 minutes 97814

Acupuncture with electrical stimulation involves inserting thin needles into specific points on your body. A mild electrical current is then passed through these needles for a set time, often 15 minutes. This can enhance the effects of traditional acupuncture, helping to relieve pain and promote healing.

51 services24 patients

Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 97110

This therapy involves exercises to boost strength, endurance, flexibility, and range of motion. Each session lasts 15 minutes. The goal is to improve physical function and overall health. It's a safe, beneficial method for enhancing well-being and fitness.

35 services13 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

24 services15 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

23 services23 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

21 services12 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

19 services14 patients

Acupuncture, initial 15 minutes 97810

Acupuncture is a traditional therapy where thin needles are inserted into specific points on your body. This initial 15-minute session aims to balance energy flow, relieve pain, and improve overall health. It's generally painless and considered safe.

16 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22180 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

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

EAST-WEST RHEUMATOLOGY, PLLC

Internal Medicine (Rheumatology)

124 PARK ST SE STE 205
VIENNA, VA 22180

Fairfax County (703) 372-2646

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 Yousef Zarbalian's NPI number?

The NPI number for Yousef Zarbalian is 1396063319. It was assigned to this individual provider in the NPPES registry on May 14, 2010.

Where is Yousef Zarbalian located?

Yousef Zarbalian practices at 124 Park St SE Ste 205, Vienna, VA 22180. The listed phone number is (225) 229-0325.

What is Yousef Zarbalian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Yousef Zarbalian enrolled in Medicare?

Yes. Yousef Zarbalian 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.

Which organization bills Medicare for Yousef Zarbalian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yousef Zarbalian reassigns Medicare benefits to East-West Rheumatology, PLLC (Vienna, VA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Yousef Zarbalian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Yousef Zarbalian was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 days 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.