DR. SIAMAK HEYDARIAN M.D.
NPI 1225072077
Internal Medicine in Woodbridge, VA

Q: What is Siamak Heydarian's NPI number?

The NPI number for Siamak Heydarian is 1225072077. It was assigned to this individual provider in the NPPES registry on June 15, 2006.

Q: What is Siamak Heydarian's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Siamak Heydarian was last updated on January 16, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since June 15, 2006PECOS Enrolled

2200 OPITZ BLVD, SUITE 350, WOODBRIDGE, VA 22191(703) 497-6700(703) 497-6300 Get Directions Write a Review

NPPES record last updated: January 16, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Siamak Heydarian M.d. NPPES

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

DR. SIAMAK HEYDARIAN M.D. (NPI 1225072077) is an individual internal medicine provider in Woodbridge, Virginia, licensed in Virginia (0101048248) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Mary Washington Hospital, and is a graduate of Other (1987).

NPPES Registry Identity

NPI1225072077

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. SIAMAK HEYDARIANCredential: M.D.

Location Address2200 OPITZ BLVD, SUITE 350Woodbridge, VA 22191-3321

Mailing Address2200 Opitz Blvd, Suite 350Woodbridge, VA 22191-3321 · (703) 497-6700 · Fax (703) 497-6300

Phone(703) 497-6700

Fax(703) 497-6300

Sole ProprietorYes

Medical School CMSOtherGraduated 1987

Enumeration DateJune 15, 2006

Last NPPES UpdateJanuary 16, 2008

✔ NPI 1225072077 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 · 0101048248

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.

2200 OPITZ BLVD, Woodbridge, VA 22191

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Other Identifiers 11

Other102386Aetna

Other110228399Rr Medicare

Other61910001Carefirst Bc Bs

Other433755VA · Anthem Bcbs

Other1452619015Cigna

Other150789200Dept Of Labor

Other289363Mamsi

Other194200Amerigroup

Medicaid5853451VA

Medicare PIN110007840

Medicare UPINF42650

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Siamak Heydarian M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7416113659

PECOS Enrollment IDI20120716000615

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 12

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 low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

728 services235 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.

231 services129 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

180 services179 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.

173 services173 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

172 services172 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.

51 services51 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

47 services18 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

42 services16 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

17 services16 patients

Transitional care management services for problem of high complexity 99496

Transitional care management services are designed to ensure a smooth transition from a hospital to home or another care setting for patients with complex health issues. These services include medication management, patient education, and coordination with healthcare providers.

17 services13 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

16 services14 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

15 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Mary Washington Hospital

Acute Care Hospitals · Fredericksburg, VA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490022

Location1001 Sam Perry BoulevardFredericksburg, VA 22401 · Fredericksburg City County

Emergency services Birthing friendly

Sentara Northern Virginia Medical Center

Acute Care Hospitals · Woodbridge, VA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490113

Location2300 Opitz BoulevardWoodbridge, VA 22191 · Prince William County

Emergency services Birthing friendly

Inova Mount Vernon Hospital

Acute Care Hospitals · Alexandria, VA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490122

Location2501 Parkers LaneAlexandria, VA 22306 · Fairfax County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22191 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

$129.04 typical visit price

range $56.19 – $170.30

Typical copayment $32.26 (range $14.04 – $42.57)

Most-billed visit code 99204

Established Patient

$99.13 typical visit price

range $18.07 – $138.91

Typical copayment $24.78 (range $4.51 – $34.72)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…

100%386 patients5/55-star benchmark: 100%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen

100%250 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

21 suppliers86 claims207 services$5.97 avg. paid by Medicare

Normal, low and high calibrator solution / chips A4256

DME-Other DME · category DE000N

3 suppliers27 claims27 services$2.39 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

13 suppliers46 claims54 services$1.07 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

3 suppliers14 claims14 services$184.60 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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Other Providers at the Same Location NPPES 20

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

MRI ASSOCIATES OF VIRGINIA

Radiology (Diagnostic Radiology)

2200 OPITZ BLVD
WOODBRIDGE, VA 22191

Prince William County (301) 824-3260

DR. KHOSRO SHAREGHI M.D., F.A.C.C.

Specialist

2200 OPITZ BLVD, SUITE 310
WOODBRIDGE, VA 22191

Prince William County (703) 494-5995

DR. MARILYN COLEMAN, DDS PC

Dentist (General Practice)

2200 OPITZ BLVD, SUITE 220
WOODBRIDGE, VA 22191

Prince William County (703) 492-0080

PRIME CARE SLEEP CENTER

Clinic/Center (Sleep Disorder Diagnostic)

2200 OPITZ BLVD, SUITE 340
WOODBRIDGE, VA 22191

Prince William County (571) 408-4476

DR. THOMAS LARRY SMITH MD

Dermatology

2200 OPITZ BLVD, SUITE 100
WOODBRIDGE, VA 22191

Prince William County (703) 492-4140

SENIOR TRANSPORT,INC.

Non-emergency Medical Transport (VAN)

2200 OPITZ BLVD
WOODBRIDGE, VA 22191

Prince William County (703) 946-3411

DR. AN TRAN DDS

Dentist (General Practice)

2200 OPITZ BLVD, SUITE 220
WOODBRIDGE, VA 22191

Prince William County (703) 492-0080

CARDIAC CARE CENTER PC

Internal Medicine (Cardiovascular Disease)

2200 OPITZ BLVD, S 310
WOODBRIDGE, VA 22191

Prince William County (703) 494-5995

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 Siamak Heydarian's NPI number?

The NPI number for Siamak Heydarian is 1225072077. It was assigned to this individual provider in the NPPES registry on June 15, 2006.

Where is Siamak Heydarian located?

Siamak Heydarian practices at 2200 Opitz Blvd Suite 350, Woodbridge, VA 22191. The listed phone number is (703) 497-6700.

What is Siamak Heydarian's specialty?

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

Is Siamak Heydarian enrolled in Medicare?

Yes. Siamak Heydarian is registered in the Medicare PECOS enrollment system.

Is Siamak Heydarian affiliated with any hospitals?

According to CMS data, Siamak Heydarian is affiliated with Mary Washington Hospital, Sentara Northern Virginia Medical Center and Inova Mount Vernon Hospital.

When was this NPI record last updated?

The NPPES record for Siamak Heydarian was last updated on January 16, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.