THOMAS W PAPPAS MD
NPI 1164474417
Internal Medicine - Interventional Cardiology in Roslyn, NY

Q: What is Thomas Pappas's NPI number?

The NPI number for Thomas Pappas is 1164474417. It was assigned to this individual provider in the NPPES registry on May 16, 2006.

Q: What is Thomas Pappas's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Thomas Pappas was last updated on February 19, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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 May 16, 2006PECOS EnrolledAccepts Medicare Assignment

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

NPPES record last updated: February 19, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Thomas W Pappas Md NPPES

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

THOMAS W PAPPAS MD (NPI 1164474417) is an individual interventional cardiology provider in Roslyn, New York, licensed in New York (1609431) 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 Js Weill Medical College, Cornell University (1983).

NPPES Registry Identity

NPI1164474417

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameTHOMAS W PAPPASCredential: MD

Location Address100 PORT WASHINGTON BLVD, SUITE 105Roslyn, NY 11576

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

Phone(516) 390-9640

Fax(516) 390-9650

Sole ProprietorNo

Medical School CMSJs Weill Medical College, Cornell UniversityGraduated 1983

Enumeration DateMay 16, 2006

Last NPPES UpdateFebruary 19, 2014

✔ NPI 1164474417 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 · 1609431

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 1609431 (NY)

100 PORT WASHINGTON BLVD, Roslyn, NY 11576

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Other Identifiers 3

Medicare ID-Type Unspecified58F471NY

Medicaid02108758NY

Medicare UPINA60623

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

Thomas W Pappas 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 ID9436138229

PECOS Enrollment IDI20040729001546

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 Thomas Pappas reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chs Physician Partners, P.C

Same address

Cardiovascular Disease

100 PORT WASHINGTON BLVD, SUITE 105
Roslyn, NY 11576

Reassigned Medicare billing, New York enrollment
Medicare enrollment name: Chs Physician Partners PC
944 clinicians in this Medicare group

NPI 1164585725 (516) 390-9640

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 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.

1,490 services1,133 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.

1,091 services852 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.

665 services178 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.

249 services234 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.

169 services103 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

123 services92 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.

79 services79 patients

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

75 services53 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.

71 services66 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

65 services62 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.

57 services57 patients

Heart rhythm recording continous external ekg over more than 48 hours up to 7 days 93242

This procedure involves wearing a device, an external EKG, for up to 7 days to continuously monitor your heart rhythm. It helps detect irregularities that may not occur during a standard EKG. The device is non-invasive and safe.

56 services52 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.

51 services51 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.

38 services38 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.

16 services15 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.

14 services14 patients

Electrocardiogram (ecg) 2-day continuous 93225

An Electrocardiogram (ECG) 2-day continuous is a non-invasive test that records the electrical activity of your heart over 48 hours. It helps to detect irregular heart rhythms, heart disease, or other cardiac conditions. You wear a portable device that records heart activity as you go about your daily activities.

12 services11 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

12 services12 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.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

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

Suny/Stony Brook University Hospital

Acute Care Hospitals · Stony Brook, NY

4/5 CMS rating

OwnershipGovernment - State

CMS Certification Number330393

LocationHealth Sciences Center SunyStony Brook, NY 11794 · Suffolk County

Emergency services Birthing friendly

St Catherine Of Siena Hospital Medical Center

Acute Care Hospitals · Smithtown, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number330401

Location50 Route 25ASmithtown, NY 11787 · Suffolk County

Emergency services Birthing friendly

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 20

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

ERIN MARIE MARKEY R.N.,M.S.,APRN-BC

Nurse Practitioner (Acute Care)

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 562-6351

DR. MENA YACOUB D.O

Internal Medicine (Clinical Cardiac Electrophysiology)

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (718) 689-0316

JULIA COHEN

Physician Assistant

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 562-6000

PEDIATRIC CARDIOLOGY OF LI PC

Pediatrics (Pediatric Cardiology)

100 PORT WASHINGTON BLVD, SUITE 108
ROSLYN, NY 11576

Nassau County (516) 365-3340

PATRICK BRENNAN P.A.

Physician Assistant

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 338-5358

KENNETH ZIELINSKI P.A.

Physician Assistant

100 PORT WASHINGTON BLVD
ROSLYN, NY 11576

Nassau County (516) 338-5358

DR. STEFAN MILTON MUEHLBAUER M.D., PHD

Emergency Medicine

100 PORT WASHINGTON BLVD, DEPT OF EMERGENCY MEDICINE
ROSLYN, NY 11576

Nassau County (165) 626-6055

MRS. MELISSA A MORELLI FNP-C

Nurse Practitioner (Family)

100 PORT WASHINGTON BLVD, ST. FRANCIS HOSPITAL EMERGENCY ROOM
ROSLYN, NY 11576

Nassau County (516) 562-6600

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 Thomas Pappas's NPI number?

The NPI number for Thomas Pappas is 1164474417. It was assigned to this individual provider in the NPPES registry on May 16, 2006.

Where is Thomas Pappas located?

Thomas Pappas practices at 100 Port Washington Blvd Suite 105, Roslyn, NY 11576. The listed phone number is (516) 390-9640.

What is Thomas Pappas's specialty?

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

Is Thomas Pappas enrolled in Medicare?

Yes. Thomas Pappas 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 Thomas Pappas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Pappas reassigns Medicare benefits to Chs Physician Partners, P.C (Roslyn, NY). 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 Thomas Pappas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Thomas Pappas affiliated with any hospitals?

According to CMS data, Thomas Pappas is affiliated with St Francis Hospital - The Heart Center, Good Samaritan Hospital Medical Center, Chsli St Joseph Hospital, Suny/Stony Brook University Hospital and St Catherine Of Siena Hospital Medical Center.

When was this NPI record last updated?

The NPPES record for Thomas Pappas was last updated on February 19, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.