JAMES MARZEC MD
NPI 1811095581
Orthopaedic Surgery in West Islip, NY

Q: What is James Marzec's NPI number?

The NPI number for James Marzec is 1811095581. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Q: What is James Marzec'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 James Marzec was last updated on April 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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 20, 2006PECOS EnrolledAccepts Medicare Assignment

0/100

CMS Quality Rating

340 MONTAUK HWY, WEST ISLIP, NY 11795(631) 422-9530 Get Directions Write a Review

NPPES record last updated: April 11, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About James Marzec Md NPPES

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

JAMES MARZEC MD (NPI 1811095581) is an individual orthopaedic surgery provider in West Islip, New York, licensed in New York (159688) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Ns/lij Hs Southside Hospital, and is a graduate of Hahnemann University College Of Medicine (1982).

NPPES Registry Identity

NPI1811095581

Entity TypeIndividualMale

Primary Taxonomy207X00000X

Provider Legal NameJAMES MARZECCredential: MD

Location Address340 MONTAUK HWYWest Islip, NY 11795-4437

Mailing Address340 Montauk HwyWest Islip, NY 11795-4437 · (631) 422-9530

Phone(631) 422-9530

Sole ProprietorYes

Medical School CMSHahnemann University College Of MedicineGraduated 1982

Enumeration DateSeptember 20, 2006

Last NPPES UpdateApril 11, 2008

✔ NPI 1811095581 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207X00000X

License✔ Licensed in NY · 159688

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.

340 MONTAUK HWY, West Islip, NY 11795

Open in Google Maps ↗

Other Identifiers 2

Other200028919NY · Railroad Medicare

Medicare PIN33E281NY

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

James Marzec 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 ID5496934895

PECOS Enrollment IDI20111027000582

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

South Shore Orthopaedic Associates

Same address

Orthopaedic Surgery

340 MONTAUK HWY
West Islip, NY 11795

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

NPI 1134227820 (631) 422-9530

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 22

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.

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.

915 services159 patients

Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose J7321

Hyaluronan or derivatives like Hyalgan, Supartz, or Visco-3, are used in intra-articular injections for joint pain relief. They help by improving joint lubrication, reducing inflammation, and promoting tissue healing. Each dose is administered directly into the joint space.

783 services108 patients

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.

767 services108 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.

566 services254 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

327 services152 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.

276 services196 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.

152 services152 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

126 services91 patients

X-ray of lower and sacral spine, minimum of 4 views 72110

An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.

55 services54 patients

X-ray of both hips, 2 views 73521

An X-ray of both hips, 2 views, is an imaging test that uses a small amount of radiation to create detailed pictures of your hip joints. This procedure helps to detect fractures, infections, or other abnormalities in the hip area. Two different angles will be captured for a comprehensive assessment.

45 services44 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

31 services21 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.

31 services31 patients

Needle measurement of electrical activity in arm or leg muscles, complete study 95886

This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.

30 services15 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

24 services19 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

23 services18 patients

Aspiration and/or injection of fluid from small joint 20600

This procedure involves inserting a thin needle into a small joint to remove (aspirate) or inject fluid. It can help diagnose conditions, relieve discomfort, or administer medication directly into the joint. It's generally safe with minimal discomfort.

21 services15 patients

X-ray of upper spine, 4-5 views 72050

An X-ray of the upper spine with 4-5 views is a non-invasive imaging test. It uses radiation to capture detailed images of the bones and structures in your neck and upper back. This procedure helps identify issues like fractures, infections, or deformities.

21 services20 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

21 services17 patients

X-ray of elbow, minimum of 3 views 73080

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

20 services15 patients

X-ray of finger, minimum of 2 views 73140

An X-ray of the finger involves capturing images of your finger from at least two different angles. This non-invasive procedure helps in visualizing the bones and joints, aiding in the diagnosis of fractures, infections, or other abnormalities. Minimal discomfort may be experienced.

18 services14 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

16 services16 patients

Nerve conduction, 9-10 studies 95911

Nerve conduction studies involve sending small electrical shocks through the skin to measure how quickly nerves transmit signals. This helps detect nerve damage. 9-10 studies mean this process will be repeated on different nerves to gather comprehensive data.

14 services14 patients

Hospital Affiliations CMS Care Compare

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

Ns/Lij Hs Southside Hospital

Acute Care Hospitals · Bay Shore, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330043

Location301 East Main StreetBay Shore, NY 11706 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11795 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.

0/100

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

Individually scored

Quality

Improvement Activities

Other Providers at the Same Location NPPES 10

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

SOUTH SHORE ORTHOPAEDIC ASSOCIATES

Orthopaedic Surgery

340 MONTAUK HWY
WEST ISLIP, NY 11795

Suffolk County (631) 422-9530

ONAL MEDICAL PC

General Practice

340 MONTAUK HWY, SUITE 2
WEST ISLIP, NY 11795

Suffolk County (631) 482-8824

STEVEN SIMONSEN MD

Orthopaedic Surgery

340 MONTAUK HWY
WEST ISLIP, NY 11795

Suffolk County (631) 422-9530

WENDY ZAPATA DO

Pediatrics

340 MONTAUK HWY
WEST ISLIP, NY 11795

Suffolk County (631) 376-6000

MS. BONNIE JEAN GREENE RPA-C

Physician Assistant

340 MONTAUK HWY
WEST ISLIP, NY 11795

Suffolk County (631) 422-9530

SOUTH MAIN CHIROPRACTIC,P.C.

Chiropractor

340 MONTAUK HWY, SUITE 2
WEST ISLIP, NY 11795

Suffolk County (631) 482-8824

GUIRAND MEDICAL PC

General Practice

340 MONTAUK HWY, SUITE 2
WEST ISLIP, NY 11795

Suffolk County (631) 482-8824

PANDA MEDICAL PC

General Practice

340 MONTAUK HWY, SUITE 2
WEST ISLIP, NY 11795

Suffolk County (631) 482-8824

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 James Marzec's NPI number?

The NPI number for James Marzec is 1811095581. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is James Marzec located?

James Marzec practices at 340 Montauk Hwy, West Islip, NY 11795. The listed phone number is (631) 422-9530.

What is James Marzec's specialty?

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

Is James Marzec enrolled in Medicare?

Yes. James Marzec 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 James Marzec's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Marzec reassigns Medicare benefits to South Shore Orthopaedic Associates (West Islip, 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 James Marzec's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is James Marzec affiliated with any hospitals?

According to CMS data, James Marzec is affiliated with Ns/Lij Hs Southside Hospital.

When was this NPI record last updated?

The NPPES record for James Marzec was last updated on April 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.