GREGORY H SIROUNIAN MD
NPI 1558356063
Orthopaedic Surgery in Garden City, NY

Q: What is Gregory Sirounian's NPI number?

The NPI number for Gregory Sirounian is 1558356063. It was assigned to this individual provider in the NPPES registry on September 12, 2005.

Q: What is Gregory Sirounian's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Sirounian was last updated on April 2, 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.

Active since September 12, 2005PECOS EnrolledAccepts Medicare Assignment

84.47/100

CMS Quality Rating

1300 FRANKLIN AVE, SUITE UL3A, GARDEN CITY, NY 11530(516) 747-8900(516) 663-8166 Get Directions Write a Review

NPPES record last updated: April 2, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Gregory H Sirounian Md NPPES

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

GREGORY H SIROUNIAN MD (NPI 1558356063) is an individual orthopaedic surgery provider in Garden City, New York, licensed in Arizona (30048) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Oregon Health Sciences University School Of Medicine (1996).

NPPES Registry Identity

NPI1558356063

Entity TypeIndividualMale

Primary Taxonomy207X00000X

Provider Legal NameGREGORY H SIROUNIANCredential: MD

Location Address1300 FRANKLIN AVE, SUITE UL3AGarden City, NY 11530-1886

Mailing AddressPo Box 9004Phoenix, AZ 85068-9004 · (623) 512-4359 · Fax (623) 512-4364

Phone(516) 747-8900

Fax(516) 663-8166

Sole ProprietorNo

Medical School CMSOregon Health Sciences University School Of MedicineGraduated 1996

Enumeration DateSeptember 12, 2005

Last NPPES UpdateApril 2, 2021

NPPES CertifiedApril 2, 2021

✔ NPI 1558356063 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207X00000X

License✔ Licensed in AZ · 30048

Definition

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Also ListedOrthopaedic Surgery · Adult Reconstructive Orthopaedic SurgeryTaxonomy 207XS0114X · License 261465-1 (NY)

1300 FRANKLIN AVE, Garden City, NY 11530

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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

Gregory H Sirounian 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 ID1052396702

PECOS Enrollment IDI20120329000776

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

520 services154 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

393 services229 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.

370 services266 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.

236 services189 patients

Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose J7323

Hyaluronan or Euflexxa is a substance similar to a natural substance in your joints. It's injected into the joint space to treat pain from osteoarthritis, especially in the knee. It helps to lubricate the joint, reducing pain and improving mobility.

198 services66 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.

132 services115 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.

82 services80 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.

67 services67 patients

Replacement of knee joint, both sides of knee 27447

A bilateral knee joint replacement is a procedure where the damaged parts of both your knee joints are replaced with artificial parts. It aims to relieve pain and improve mobility. The process involves a surgical operation under anesthesia.

45 services44 patients

Replacement of thigh bone and hip joint with prosthesis 27130

This procedure, known as hip arthroplasty, involves replacing your damaged thigh bone and hip joint with artificial parts, called a prosthesis. It helps relieve pain, improve mobility, and enhance your quality of life.

43 services43 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.

39 services39 patients

Hyaluronan or derivative, monovisc, for intra-articular injection, per dose J7327

Monovisc is a treatment involving an injection of hyaluronan or its derivative into a joint, often the knee. This substance, found naturally in joint fluid, helps lubricate and cushion the joint. The injection can help ease pain, improve mobility, and reduce inflammation caused by arthritis.

21 services17 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 11530 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

$105.06 typical visit price

range $67.40 – $203.53

Typical copayment $26.26 (range $16.85 – $50.88)

Most-billed visit code 99203

Established Patient

$83.44 typical visit price

range $21.66 – $164.45

Typical copayment $20.86 (range $5.41 – $41.11)

Most-billed visit code 99213

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

Reported Quality Measures

Risk-standardized complication rate (RSCR) following elective primary total hip arthroplasty (THA) and/or total knee arthroplasty (TKA) for Merit-based Incentive Payment System (MIPS)

Lower rates are better for this measure.

0.02%

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 2

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

Walker, folding, wheeled, adjustable or fixed height E0143

DME-Other DME · category DE000N

1 supplier26 claims26 services$39.76 avg. paid by Medicare

Knee orthosis, elastic with condylar pads and joints, with or without patellar control, prefabricated, includes fitting and adjustment L1820

DME-Orthotic Devices · category DF011N

1 supplier15 claims16 services$114.07 avg. paid by Medicare

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

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.

MRS. MELISSA JANE THORP PT

Physical Therapist

1300 FRANKLIN AVE
GARDEN CITY, NY 11530

Nassau County (516) 663-9099

DR. ADAM N WILSON M.D.

Orthopaedic Surgery (Hand Surgery)

1300 FRANKLIN AVE
GARDEN CITY, NY 11530

Nassau County (516) 747-8900

MISS JACQUELINE EILEEN TIERNEY ATC

Specialist/Technologist (Athletic Trainer)

1300 FRANKLIN AVE
GARDEN CITY, NY 11530

Nassau County (516) 663-1052

DR. MARK GEOFFERY GROSSMAN MD

Orthopaedic Surgery (Sports Medicine)

1300 FRANKLIN AVE, SUITE UL3A
GARDEN CITY, NY 11530

Nassau County (516) 747-8900

WINTHROP PAIN MANAGEMENT

Anesthesiology (Pain Medicine)

1300 FRANKLIN AVE, 2ND FLOOR 3A
GARDEN CITY, NY 11530

Nassau County (516) 741-0570

MR. SAVERIO CIANCIOTTA PA

Physician Assistant (Medical)

1300 FRANKLIN AVE
GARDEN CITY, NY 11530

Nassau County (516) 663-2224

MICHAEL WILLIAM BERNARDO DPT

Physical Therapist

1300 FRANKLIN AVE, SUITE LL2
GARDEN CITY, NY 11530

Nassau County (516) 663-9099

DR. IOANNIS CHRISTOS ZOUZIAS M.D.

Orthopaedic Surgery (Sports Medicine)

1300 FRANKLIN AVE, SUITE UL3A
GARDEN CITY, NY 11530

Nassau County (516) 747-8900

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 Gregory Sirounian's NPI number?

The NPI number for Gregory Sirounian is 1558356063. It was assigned to this individual provider in the NPPES registry on September 12, 2005.

Where is Gregory Sirounian located?

Gregory Sirounian practices at 1300 Franklin Ave Suite Ul3a, Garden City, NY 11530. The listed phone number is (516) 747-8900.

What is Gregory Sirounian's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Gregory Sirounian enrolled in Medicare?

Yes. Gregory Sirounian 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 Gregory Sirounian affiliated with any hospitals?

According to CMS data, Gregory Sirounian is affiliated with Nyu Langone Hospitals.

When was this NPI record last updated?

The NPPES record for Gregory Sirounian was last updated on April 2, 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.