Dr. James L. Marzec, MD
- Medicare services, 2024
- 4,413
- Medicare patients, 2024
- 414
- Part D claims, 2024
- 81
- MIPS score, 2024
- 22
- Hospital affiliations
- 1
- Practice address
- 340 Montauk Hwy Suite 1 Suite 1, West Islip, NY 11795-4437
- Practice phone
- Call (631) 422-9530
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
South Shore Orthopaedic Associates
Surgical practice · West Islip, New York
Find Dr. Marzec's professional email, personal email and mobile number
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Dr. James L. Marzec is an orthopedic surgeon in West Islip, New York
Dr. Marzec practices at South Shore Orthopaedic Associates in West Islip, New York.
Dr. Marzec's NPI, 1811095581, was assigned on September 20, 2006. Dr. Marzec graduated from Drexel University College of Medicine/Hahnemann University in 1982. Dr. Marzec holds New York license 159688.
- NPI
- 1811095581NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496934895
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 422-9530
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James L. Marzec practices at South Shore Orthopaedic Associates in West Islip, New York
Dr. Marzec's primary practice is South Shore Orthopaedic Associates, at 340 Montauk Hwy Suite 1 Suite 1, West Islip, NY 11795-4437. The practice phone is (631) 422-9530.
- South Shore Orthopaedic Associates340 Montauk Hwy Suite 1 Suite 1, West Islip, NY 11795-4437Phone(631) 422-9530
Source: Dmand AI Affiliation Data
Dr. James L. Marzec is affiliated with 2 sites of care and 1 medical group
Dr. Marzec's primary practice is South Shore Orthopaedic Associates in West Islip, New York. Dr. Marzec is also affiliated with South Shore University Hospital. The medical group on file is South Shore Orthopaedics Associates.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. James L. Marzec's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marzec practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| South Shore Orthopaedic Associates | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James L. Marzec is one of 1,151 orthopedic surgeons in New York
Orthopaedic surgery is Dr. Marzec's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Marzec is licensed in New York.
Specialties and state licenses
- Orthopaedic surgery, New YorkPrimary
Orthopedic surgeons near Dr. Marzec
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. James L. Marzec billed Medicare for 4,413 services in 2024
CMS data shows 4,413 Medicare services from Dr. Marzec across 23 procedure codes in 2024, for 414 Medicare patients. Medicare paid $210,436 for them. Every service was in an office.
Dr. Marzec's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 1,4902024: 1,68113%
- Office and hospital visits
- 2023: 1,0432024: 1,041No change
- Surgery
- 2023: 1,0482024: 93611%
- Imaging
- 2023: 6822024: 7114%
- Tests and treatments
- 2023: 432024: 442%
Dr. Marzec compared with the New York median for orthopedic surgeons, 2024
- Dr. Marzec
- New York median
- Medicare services
- 4,413vs 7266.1 times
- Medicare patients
- 414vs 23675% above
- Part D claims
- 70vs 73Close to median
Medians across 1,081 orthopedic surgeons in New York with Dmand AI profiles that report each measure.
Dr. Marzec's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James L. Marzec treated 414 Medicare patients in 2024, average age 73
CMS counts 414 Medicare patients who saw Dr. Marzec in 2024. The largest group is 65 to 74, with 197 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marzec's median patient age at 59, with 52% women.
Dr. Marzec's Medicare patients by age, 2024
Dr. Marzec's Medicare patients by sex, 2024
- Women22254%
- Men19246%
Chronic conditions among Dr. Marzec's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis72%
- Ischemic heart disease39%
- Diabetes35%
- Anxiety25%
- Chronic kidney disease17%
- Mood disorders17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marzec's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women52%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James L. Marzec wrote 81 Medicare Part D claims in 2024
In 2024, Dr. Marzec wrote 81 Medicare Part D claims for 59 patients. 100% of them were for generic drugs. CMS names the drug for 70 of them, across 3 drugs with 11 or more claims each, at $336 in total drug cost. In 2023, CMS named 56 claims across 3 drugs.
Dr. Marzec's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Marzec's Part D claims, 2024
- Opioids40%32 of 81 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 562024: 7025%
Drugs named by CMS: 3 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. James L. Marzec scored 22 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 22 out of 100 for Dr. Marzec for performance year 2024, reported individually. Dr. Marzec accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 26 procedures of lower limb (leg) arthroscopy (minimally invasive joint repair) by Dr. Marzec, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Marzec's MIPS scores, performance year 2024
- 22of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Marzec ranks in Medicare procedure volume
- Lower limb (leg) arthroscopy (minimally invasive joint repair)
- 95th percentile26 procedures
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 67th percentile23 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. James L. Marzec received $1,977 in industry payments from 2016 to 2025
CMS Open Payments shows 35 general payments to Dr. Marzec from 15 drug and device companies from 2016 to 2025. Education make up the largest share, 54% of the total. Gotham Surgical Solutions & Devices, Inc. paid the most, $1,062.
General payments to Dr. Marzec by program year, 2016 to 2025
General payments to Dr. Marzec by kind, 2016 to 2025
- Education$1,06154%
- Food and beverage$91646%
Companies that paid Dr. Marzec the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James L. Marzec graduated from Drexel University College of Medicine/Hahnemann University
Dr. Marzec graduated from Drexel University College of Medicine/Hahnemann University in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James L. Marzec's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. James L. Marzec
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. James L. Marzec's NPI number?
Dr. James L. Marzec's NPI number is 1811095581. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James L. Marzec?
Dr. James L. Marzec is an orthopedic surgeon in West Islip, New York. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. James L. Marzec practice?
Dr. Marzec practices at 340 Montauk Hwy Suite 1 Suite 1, West Islip, NY 11795-4437. Dr. Marzec's primary practice is South Shore Orthopaedic Associates in West Islip, New York.
What is Dr. James L. Marzec's office phone number?
The practice phone on file for Dr. Marzec is (631) 422-9530.
What is Dr. James L. Marzec's medical license number?
Dr. Marzec holds New York license 159688.
Which hospitals is Dr. James L. Marzec affiliated with?
Dr. Marzec is affiliated with South Shore University Hospital.
What medical group is Dr. James L. Marzec part of?
Dr. Marzec is linked to South Shore Orthopaedics Associates.
Does Dr. James L. Marzec accept Medicare?
Yes. CMS data shows Dr. Marzec billed Medicare for 4,413 services in 2024, and Dr. Marzec accepts Medicare assignment.
What is Dr. James L. Marzec's MIPS score?
Dr. Marzec's MIPS final score for performance year 2024 is 22 out of 100, reported individually.
How many Medicare patients does Dr. James L. Marzec see?
CMS counts 414 Medicare patients who saw Dr. Marzec in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. James L. Marzec bill to Medicare?
In 2024, Dr. Marzec's most billed Medicare services were surgery: bones and joints (20610), injected or infused drug (J7321) and injected or infused drug (J3301).
Where did Dr. James L. Marzec go to medical school?
Dr. Marzec graduated from Drexel University College of Medicine/Hahnemann University in 1982.
What drugs does Dr. James L. Marzec prescribe most?
In 2024 Medicare Part D data, Dr. Marzec's most prescribed drugs by claims were Methylprednisolone, Oxycodone-Acetaminophen and Tramadol HCl.
Has Dr. James L. Marzec received payments from drug or device companies?
CMS Open Payments shows $1,977 in general payments to Dr. Marzec from 15 companies from 2016 to 2025. The largest total came from Gotham Surgical Solutions & Devices, Inc.
How long has Dr. James L. Marzec been practicing?
Dr. Marzec graduated from medical school in 1982, 44 years ago.
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