DR. THEOFANIS TSIAMTSIOURIS MD
NPI 1306897541
Internal Medicine - Interventional Cardiology in Roslyn, NY

Q: What is Theofanis Tsiamtsiouris's NPI number?

The NPI number for Theofanis Tsiamtsiouris is 1306897541. It was assigned to this individual provider in the NPPES registry on May 12, 2006.

Q: What is Theofanis Tsiamtsiouris's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Active since May 12, 2006PECOS EnrolledAccepts Medicare Assignment

100 PORT WASHINGTON BLVD STE 105, ROSLYN, NY 11576(516) 390-9640(516) 390-9650 Get Directions Write a Review

NPPES record last updated: October 3, 2012. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Dr. Theofanis Tsiamtsiouris Md NPPES

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

DR. THEOFANIS TSIAMTSIOURIS MD (NPI 1306897541) is an individual interventional cardiology provider in Roslyn, New York, licensed in New York (1984011) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with St Francis Hospital - The Heart Center, and is a graduate of State University Of New York At Stony Brook, School Of Medicine (1993).

NPPES Registry Identity

NPI1306897541

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. THEOFANIS TSIAMTSIOURISCredential: MD

Location Address100 PORT WASHINGTON BLVD STE 105Roslyn, NY 11576

Mailing Address100 Port Washington Blvd Ste 105Roslyn, NY 11576 · (516) 390-9640 · Fax (516) 390-9650

Phone(516) 390-9640

Fax(516) 390-9650

Sole ProprietorNo

Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 1993

Enumeration DateMay 12, 2006

Last NPPES UpdateOctober 3, 2012

✔ NPI 1306897541 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in NY · 1984011

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 1984011 (NY)

100 PORT WASHINGTON BLVD STE 105, Roslyn, NY 11576

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Other Identifiers 3

Medicare ID-Type Unspecified400P31NY

Medicare UPINH34403

Medicaid02174312NY

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

Dr. Theofanis Tsiamtsiouris 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 ID345210993

PECOS Enrollment IDI20040729001339

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 19

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.

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.

1,818 services1,139 patients

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.

872 services716 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-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.

566 services140 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.

466 services447 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.

375 services310 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

128 services104 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

127 services94 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

105 services97 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

70 services70 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

60 services58 patients

Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel 92978

This procedure involves using ultrasound technology to examine the first vessel of your heart or graft. A radiologist will review the images. It's a non-invasive way to check the health of your heart's blood vessels.

38 services32 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

37 services31 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

31 services31 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.

26 services26 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.

22 services16 patients

Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist 93460

This procedure involves placing a tube into the heart chambers and coronary artery. It helps diagnose heart conditions. A radiologist reviews the images obtained. It's a standard, safe procedure performed by experienced medical professionals.

21 services21 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

20 services18 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-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.

17 services16 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

16 services16 patients

Hospital Affiliations CMS Care Compare 4

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

St Francis Hospital - The Heart Center

Acute Care Hospitals · Roslyn, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330182

Location100 Port Washington BoulevardRoslyn, NY 11576 · Nassau County

Emergency services

Mercy Medical Center

Acute Care Hospitals · Rockville Centre, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330259

Location1000 North Village AvenueRockville Centre, NY 11570 · Nassau County

Emergency services Birthing friendly

Good Samaritan Hospital Medical Center

Acute Care Hospitals · West Islip, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330286

Location1000 Montauk HighwayWest Islip, NY 11795 · Suffolk County

Emergency services Birthing friendly

Chsli St Joseph Hospital

Acute Care Hospitals · Bethpage, NY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330332

Location4295 Hempstead TurnpikeBethpage, NY 11714 · Nassau County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11576 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

$154.28 typical visit price

range $67.40 – $203.53

Typical copayment $38.57 (range $16.85 – $50.88)

Most-billed visit code 99204

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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.

MARISA E KAPLAN NP

Nurse Practitioner (Family)

100 PORT WASHINGTON BLVD STE 105
ROSLYN, NY 11576

Nassau County (516) 390-9640

DR. EVAN SCOTT SHLOFMITZ DO

Internal Medicine (Interventional Cardiology)

100 PORT WASHINGTON BLVD STE 105
ROSLYN, NY 11576

Nassau County (516) 390-9640

MS. ASHLEY VIVIANA DAVIOS NP

Nurse Practitioner (Adult Health)

100 PORT WASHINGTON BLVD STE 105
ROSLYN, NY 11576

Nassau County (917) 626-2185

DAVID JOEL COHEN M.D.

Internal Medicine (Interventional Cardiology)

100 PORT WASHINGTON BLVD STE 105
ROSLYN, NY 11576

Nassau County (516) 390-9640

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 Theofanis Tsiamtsiouris's NPI number?

The NPI number for Theofanis Tsiamtsiouris is 1306897541. It was assigned to this individual provider in the NPPES registry on May 12, 2006.

Where is Theofanis Tsiamtsiouris located?

Theofanis Tsiamtsiouris practices at 100 Port Washington Blvd Ste 105, Roslyn, NY 11576. The listed phone number is (516) 390-9640.

What is Theofanis Tsiamtsiouris's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Theofanis Tsiamtsiouris enrolled in Medicare?

Yes. Theofanis Tsiamtsiouris 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 Theofanis Tsiamtsiouris affiliated with any hospitals?

According to CMS data, Theofanis Tsiamtsiouris is affiliated with St Francis Hospital - The Heart Center, Mercy Medical Center, Good Samaritan Hospital Medical Center and Chsli St Joseph Hospital.

When was this NPI record last updated?

The NPPES record for Theofanis Tsiamtsiouris was last updated on October 3, 2012. NPI Profile syncs with the weekly NPPES data releases published by CMS.