CARYLANN HADJIYANE M.D.
NPI 1003816786
Internal Medicine - Gastroenterology in New Hyde Park, NY

Q: What is Carylann Hadjiyane's NPI number?

The NPI number for Carylann Hadjiyane is 1003816786. It was assigned to this individual provider in the NPPES registry on July 26, 2005.

Q: What is Carylann Hadjiyane's specialty?

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

Active since July 26, 2005PECOS EnrolledAccepts Medicare Assignment

84.47/100

CMS Quality Rating

1991 MARCUS AVE, SUITE 101, NEW HYDE PARK, NY 11042(516) 365-4949(516) 365-5462 Get Directions Write a Review

NPPES record last updated: March 3, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Carylann Hadjiyane M.d. NPPES

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

CARYLANN HADJIYANE M.D. (NPI 1003816786) is an individual gastroenterology provider in New Hyde Park, New York, licensed in New York (170682) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of State University Of New York Downstate Medical Center (1986).

NPPES Registry Identity

NPI1003816786

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameCARYLANN HADJIYANECredential: M.D.

Location Address1991 MARCUS AVE, SUITE 101New Hyde Park, NY 11042-2058

Mailing Address1991 Marcus Ave, Suite 101New Hyde Park, NY 11042-2058 · (516) 365-4949 · Fax (516) 365-5462

Phone(516) 365-4949

Fax(516) 365-5462

Sole ProprietorNo

Medical School CMSState University Of New York Downstate Medical CenterGraduated 1986

Enumeration DateJuly 26, 2005

Last NPPES UpdateMarch 3, 2021

NPPES CertifiedMarch 3, 2021

✔ NPI 1003816786 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 · 170682

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.

1991 MARCUS AVE, New Hyde Park, NY 11042

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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

Carylann Hadjiyane 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 ID749367100

PECOS Enrollment IDI20100610000587

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

New York University

1,045 mi

Cardiovascular Disease

3301 QUANTUM BLVD
Boynton Beach, FL 33426

Reassigned Medicare billing, New York enrollment
2,450 clinicians in this Medicare group

NPI 1285826438 (877) 648-2964

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 14

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 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.

257 services211 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.

110 services101 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.

63 services60 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.

50 services50 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.

45 services40 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.

34 services34 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.

33 services33 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.

30 services30 patients

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

22 services21 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.

21 services19 patients

Stool analysis for blood, by peroxidase activity 82272

A stool analysis for blood, by peroxidase activity, is a test to detect blood in your stool. This test helps identify bleeding in the digestive tract. It involves collecting a stool sample, which is then checked for the presence of blood using a chemical reaction.

18 services17 patients

Biopsy of large bowel using a flexible endoscope 45380

16 services16 patients

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

13 services13 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

13 services13 patients

Hospital Affiliations CMS Care Compare

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

Nyu Langone Hospitals

Acute Care Hospitals · New York, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330214

Location550 First AvenueNew York, NY 10016 · New York County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11042 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.

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.

84.47/100

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

Scored as part of a group practice

Quality

93.33

Promoting Interoperability

100

Improvement Activities

Cost

54.91

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.

BOB CHANG

Physical Therapist

1991 MARCUS AVE
NEW HYDE PARK, NY 11042

Nassau County (516) 467-8730

NINA SKARIA NP

Pediatrics (Pediatric Rheumatology)

1991 MARCUS AVE
NEW HYDE PARK, NY 11042

Nassau County (516) 472-3700

JOAN STERRETT LMSW

Social Worker

1991 MARCUS AVE, M201
NEW HYDE PARK, NY 11042

Nassau County (718) 484-5000

MRS. JESSICA MARIE MENNELLA AGPCNP-C

Nurse Practitioner (Adult Health)

1991 MARCUS AVE
NEW HYDE PARK, NY 11042

Nassau County (646) 680-4081

EUGENE S BONAPACE JR. M.D.

Internal Medicine (Gastroenterology)

1991 MARCUS AVE, SUITE 101
NEW HYDE PARK, NY 11042

Nassau County (516) 365-4949

DR. TONI WEBSTER D.O.

Student in an Organized Health Care Education/Training Program

1991 MARCUS AVE, M100
LAKE SUCCESS, NY 11042

Nassau County (516) 472-3650

DR. REENA LOONA MD

Internal Medicine

1991 MARCUS AVE
NEW HYDE PARK, NY 11042

Nassau County (516) 354-1600

MR. DAVID MAX ZIMMERMAN CNIM

1991 MARCUS AVE, SUITE 108
NEW HYDE PARK, NY 11042

Nassau County (516) 442-2250

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 Carylann Hadjiyane's NPI number?

The NPI number for Carylann Hadjiyane is 1003816786. It was assigned to this individual provider in the NPPES registry on July 26, 2005.

Where is Carylann Hadjiyane located?

Carylann Hadjiyane practices at 1991 Marcus Ave Suite 101, New Hyde Park, NY 11042. The listed phone number is (516) 365-4949.

What is Carylann Hadjiyane's specialty?

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

Is Carylann Hadjiyane enrolled in Medicare?

Yes. Carylann Hadjiyane 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 Carylann Hadjiyane's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carylann Hadjiyane reassigns Medicare benefits to New York University (Boynton Beach, FL). 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 Carylann Hadjiyane's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Carylann Hadjiyane affiliated with any hospitals?

According to CMS data, Carylann Hadjiyane is affiliated with Nyu Langone Hospitals.

When was this NPI record last updated?

The NPPES record for Carylann Hadjiyane was last updated on March 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.