NICHOLAS TRIANTAFILLOU MD
NPI 1144212853
Internal Medicine - Gastroenterology in Bayside, NY

Q: What is Nicholas Triantafillou's NPI number?

The NPI number for Nicholas Triantafillou is 1144212853. It was assigned to this individual provider in the NPPES registry on August 18, 2005.

Q: What is Nicholas Triantafillou's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since August 18, 2005PECOS EnrolledAccepts Medicare AssignmentCLIA 33D0987650 · Certificate of Compliance

32.31/100

CMS Quality Rating

21305 39TH AVE, BAYSIDE, NY 11361(718) 224-1378 Get Directions Write a Review

NPPES record last updated: August 13, 2015. Verified against the NPPES registry weekly; last sync: July 26, 2026.

On this page

About Nicholas Triantafillou Md NPPES

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

NICHOLAS TRIANTAFILLOU MD (NPI 1144212853) is an individual gastroenterology provider in Bayside, New York, licensed in New York (199020) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, holds a CLIA Certificate of Compliance certificate valid through March 26, 2027, and is a graduate of Other (1988).

NPPES Registry Identity

NPI1144212853

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameNICHOLAS TRIANTAFILLOUCredential: MD

Location Address21305 39TH AVEBayside, NY 11361-2044

Mailing Address21305 39th AveBayside, NY 11361-2044 · (718) 224-1378

Phone(718) 224-1378

Sole ProprietorYes

Medical School CMSOtherGraduated 1988

Enumeration DateAugust 18, 2005

Last NPPES UpdateAugust 13, 2015

✔ NPI 1144212853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in NY · 199020

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

21305 39TH AVE, Bayside, NY 11361

Open in Google Maps ↗

Other Identifiers 4

Medicaid01785964NY

Medicare UPING61121

Medicare PIN03966NY

Medicare PIN29N041NY

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

Nicholas Triantafillou 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 ID2961491568

PECOS Enrollment IDI20040510000369

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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 33D0987650

Nicholas G Triantafillou, MD, PC · Bayside, NY

Active · expires Mar 26, 2027

CLIA Number33D0987650

Laboratory TypePhysician Office

Certificate Effective DateFebruary 10, 2018

Certificate Expiration DateMarch 26, 2027

Laboratory DirectorDr. Olga G. Falkowski

Laboratory Phone(718) 224-1378

Laboratory LocationNicholas G Triantafillou, MD, PC213-05 39th Ave, Bayside, NY 11361

CLIA data matches this NPI record on: Phone

This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Areas of Expertise CMS Part B claims 13

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

362 services109 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.

216 services142 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

146 services41 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

129 services40 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

117 services39 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.

89 services60 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.

88 services70 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

58 services58 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.

58 services58 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

52 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.

46 services46 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

41 services40 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

30 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11361 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

$153.13 typical visit price

range $67.00 – $201.98

Typical copayment $38.28 (range $16.75 – $50.49)

Most-billed visit code 99204

Established Patient

$116.96 typical visit price

range $21.62 – $163.52

Typical copayment $29.24 (range $5.40 – $40.88)

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.

32.31/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

64.63

Improvement Activities

Reported Quality Measures

Age Appropriate Screening Colonoscopy

Lower rates are better for this measure.

0%294 patients

Appropriate follow-up interval based on pathology findings in screening colonoscopy

64%78 patients

Appropriate Follow-Up Interval for Normal Colonoscopy in Average Risk Patients

97%122 patients

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.

Other Providers at the Same Location NPPES 3

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

BELL ASSOCIATES INC

Anesthesiology

21305 39TH AVE
BAYSIDE, NY 11361

Queens County (516) 825-0221

NICHOLAS TRIANTAFILLOU MD PC

Internal Medicine (Gastroenterology)

21305 39TH AVE
BAYSIDE, NY 11361

Queens County (718) 224-1378

BELL MEDICAL ASSOCIATE PLLC

Anesthesiology

21305 39TH AVE
BAYSIDE, NY 11361

Queens County (718) 224-1378

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 Nicholas Triantafillou's NPI number?

The NPI number for Nicholas Triantafillou is 1144212853. It was assigned to this individual provider in the NPPES registry on August 18, 2005.

Where is Nicholas Triantafillou located?

Nicholas Triantafillou practices at 21305 39th Ave, Bayside, NY 11361. The listed phone number is (718) 224-1378.

What is Nicholas Triantafillou's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Nicholas Triantafillou enrolled in Medicare?

Yes. Nicholas Triantafillou 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.

Does Nicholas Triantafillou hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 33D0987650) is associated with this NPI, valid through March 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Nicholas Triantafillou was last updated on August 13, 2015. NPI Profile syncs with the weekly NPPES data releases published by CMS.

About Nicholas Triantafillou Md NPPES

NPPES Registry Identity

Specialties & Licenses

Other Identifiers 4

Medicare Participation & PECOS CMS

Medicare Enrollment Status

CLIA Laboratory Certificates CMS CLIA

Certificate of Compliance · 33D0987650

Areas of Expertise CMS Part B claims 13

Physician Visit Costs CMS claims · ZIP area

Medicare Quality Performance CMS QPP · MIPS

Reported Quality Measures

Other Providers at the Same Location NPPES 3

Frequently Asked Questions NPPES & CMS

What is Nicholas Triantafillou's NPI number?

Where is Nicholas Triantafillou located?

What is Nicholas Triantafillou's specialty?

Is Nicholas Triantafillou enrolled in Medicare?

Does Nicholas Triantafillou hold a CLIA laboratory certificate?

When was this NPI record last updated?

Certificate of Compliance 33D0987650