Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Gregg Klein , MD

Orthopaedic Surgery • Paramus, NJ

Active NPI 1528053642 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

650 From Rd
Paramus, NJ 076523517

Call 2016396620 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

650 From Rd

Paramus, NJ 076523517

Telephone 2016396620
Fax 2019728980
Organization at the Same NPPES Address or Phone
Strategic Practice Solutions Facility NPI 1477999068

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Hackensack Meridian Health Medical Group - Specialty Care Pc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Jefferson Medical College Of Thomas Jefferson University

Graduation Year

1997

Medicare patients

1,022 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $805,626 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $621,421 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

859 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$3,478 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $411,348.18 across 51 records.

By nature of payment (3 largest of 5)

  • Royalty or License: $399,063.00 across 8 records.
  • Consulting Fee: $9,125.00 across 8 records.
  • Food and Beverage: $1,503.37 across 24 records.

Reporting-company totals (3 largest of 10)

  • Zimmer Biomet Holdings, Inc.: $410,685.11 across 39 records.
  • Davol Inc.: $185.28 across 2 records.
  • Medical Device Business Services, Inc.: $122.00 across 1 record.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

29 years (graduated 1997)

CMS Doctors and Clinicians data list 1997 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2005

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Klein has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Klein as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Paramus and New Jersey

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 95% of clinicians listed under Orthopaedic Surgery in Paramus, NJ (2024, 12 clinicians with data). Median for this group: 1,093. Middle half: 73 to 3,802.

More Medicare Part B services than 80% of clinicians listed under Orthopaedic Surgery in New Jersey (2024, 422 clinicians with data). Median for this group: 2,318. Middle half: 621 to 6,293.

Medicare-allowed amount

A higher Medicare-allowed amount than 95% of clinicians listed under Orthopaedic Surgery in Paramus, NJ (2024, 12 clinicians with data). Median for this group: $88,092. Middle half: $5,186 to $199,207.

A higher Medicare-allowed amount than 95% of clinicians listed under Orthopaedic Surgery in New Jersey (2024, 422 clinicians with data). Median for this group: $118,255. Middle half: $44,345 to $235,190.

Paid by Medicare

A higher Medicare payment amount than 95% of clinicians listed under Orthopaedic Surgery in Paramus, NJ (2024, 12 clinicians with data). Median for this group: $67,190. Middle half: $3,848 to $151,955.

A higher Medicare payment amount than 95% of clinicians listed under Orthopaedic Surgery in New Jersey (2024, 422 clinicians with data). Median for this group: $87,612. Middle half: $33,729 to $178,013.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Orthopaedic Surgery in Paramus, NJ (2024, 11 clinicians with data). Median for this group: 94. Middle half: 60 to 314.

More Part D prescriptions than 90% of clinicians listed under Orthopaedic Surgery in New Jersey (2024, 396 clinicians with data). Median for this group: 160. Middle half: 60 to 364.

Part D drug cost

A higher Part D drug cost than 90% of clinicians listed under Orthopaedic Surgery in Paramus, NJ (2024, 11 clinicians with data). Median for this group: $672. Middle half: $219 to $2,493.

A higher Part D drug cost than 75% of clinicians listed under Orthopaedic Surgery in New Jersey (2024, 396 clinicians with data). Median for this group: $1,294. Middle half: $363 to $3,164.

17 active clinicians are listed under Orthopaedic Surgery with a practice address in Paramus, NJ (690 in New Jersey).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Paramus

0% of these 17 clinicians have the CMS telehealth indicator.

58.8% of these 17 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 51 records totaling $411,348.18.

Manufacturer Payment Nature Product Type Amount ($)
Zimmer Biomet Holdings, Inc.
Royalty or License
Cash or cash equivalent
ROSA General $105,707.00
Zimmer Biomet Holdings, Inc.
Royalty or License
Cash or cash equivalent
ROSA General $104,709.50
Zimmer Biomet Holdings, Inc.
Royalty or License
Cash or cash equivalent
ROSA General $103,785.50
Zimmer Biomet Holdings, Inc.
Royalty or License
Cash or cash equivalent
ROSA General $82,453.00
Zimmer Biomet Holdings, Inc.
Consulting Fee
Cash or cash equivalent
— General $3,500.00
Zimmer Biomet Holdings, Inc.
Consulting Fee
Cash or cash equivalent
— General $3,375.00
Zimmer Biomet Holdings, Inc.
Royalty or License
Cash or cash equivalent
ROSA General $745.50
Zimmer Biomet Holdings, Inc.
Royalty or License
Cash or cash equivalent
ROSA General $640.50
Zimmer Biomet Holdings, Inc.
Royalty or License
Cash or cash equivalent
ROSA General $584.50
Zimmer Biomet Holdings, Inc.
Consulting Fee
Cash or cash equivalent
— General $500.00
Zimmer Biomet Holdings, Inc.
Consulting Fee
Cash or cash equivalent
— General $500.00
Zimmer Biomet Holdings, Inc.
Consulting Fee
Cash or cash equivalent
ROSA General $500.00
Zimmer Biomet Holdings, Inc.
Travel and Lodging
In-kind items and services
Oxford General $472.83
Zimmer Biomet Holdings, Inc.
Royalty or License
Cash or cash equivalent
ROSA General $437.50
Zimmer Biomet Holdings, Inc.
Travel and Lodging
In-kind items and services
— General $252.86
Zimmer Biomet Holdings, Inc.
Consulting Fee
Cash or cash equivalent
— General $250.00
Zimmer Biomet Holdings, Inc.
Consulting Fee
Cash or cash equivalent
ROSA General $250.00
Zimmer Biomet Holdings, Inc.
Consulting Fee
Cash or cash equivalent
ROSA General $250.00
Zimmer Biomet Holdings, Inc.
Travel and Lodging
In-kind items and services
— General $240.86
Zimmer Biomet Holdings, Inc.
Travel and Lodging
In-kind items and services
— General $205.20
Zimmer Biomet Holdings, Inc.
Food and Beverage
In-kind items and services
— General $180.90
Zimmer Biomet Holdings, Inc.
Food and Beverage
In-kind items and services
Oxford General $146.98
Zimmer Biomet Holdings, Inc.
Travel and Lodging
Cash or cash equivalent
— General $140.00
Davol Inc.
Food and Beverage
In-kind items and services
Surgiphor General $135.67
Medical Device Business Services, Inc.
Food and Beverage
In-kind items and services
ATTUNE General $122.00

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
J7318 Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg
2,580 29 $15.70 $6.62
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg
2,078 170 $6.01 $0.98
J0665 Injection, bupivicaine, not otherwise specified, 0.5 mg
1,034 201 $5.32 $0.01
73564 X-ray of knee, 4 or more views
776 489 $165.00 $53.56
73502 X-ray of hip, 2-3 views
659 478 $165.00 $53.80
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
565 415 $425.79 $139.83
20610 Aspiration and/or injection of fluid from large joint
403 286 $247.30 $80.59
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
363 327 $300.74 $100.06
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
310 310 $551.19 $183.07
73562 X-ray of knee, 3 views
184 142 $140.43 $46.59
20985 Computer-assisted surgery for muscle and bone procedure
164 155 $466.28 $154.03
27447 Replacement of knee joint, both sides of knee
158 153 $4221.15 $1405.86
27130 Replacement of thigh bone and hip joint with prosthesis
126 124 $4193.73 $1399.24
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
108 108 $371.39 $121.87
J7327 Hyaluronan or derivative, monovisc, for intra-articular injection, per dose
87 53 $1570.34 $649.59
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
18 18 $55.00 $17.73
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
11 11 $725.00 $242.60

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Meloxicam Meloxicam 488 15,270 $1,304.22 185
Amoxicillin Amoxicillin 203 423 $261.68 117
Celecoxib Celecoxib 76 2,768 $1,597.63 41
Azithromycin Azithromycin 37 45 $113.56 18
Diclofenac Sodium Diclofenac Sodium 12 297 $200.53 —

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2023-04-09
Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

License # reported to NPPES NJ 25MA07802700

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: New Jersey Division of Consumer Affairs.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ORTHOPEDIC SURGERY

Medicare Enrollment ID

I20051004000725

Enrollment State Jurisdiction

NJ

PECOS Control ID

7618948670

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Hackensack Meridian Health Medical Group - Specialty Care Pc

7650 River Rd, North Bergen, NJ 070476527

Phone: 2012248831

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

21 listed
Dr. Daniel Areson , DO

Physical Medicine & Rehabilitation

NPI 1770902959

Doctor of Osteopathic Medicine (D.O.)

Dr. Rocco Bassora , MD

Orthopaedic Surgery - Sports Medicine

NPI 1689734154

Doctor of Medicine (M.D.)

Jessica Castelo , PA

Physician Assistant - Surgical

NPI 1699458448

Physician Assistant

Dr. Chris Cherian , MD

Physical Medicine & Rehabilitation - Sports Medicine

NPI 1285014159

Doctor of Medicine (M.D.)

Fabio Collarelli , RPA-C

Physician Assistant

NPI 1548206105

RPAC

Amanda Defeo , PA

Physician Assistant

NPI 1114274917

Physician Assistant

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

7 Historical Events
📍
Updated Practice Location April 21, 2023

Registered at 650 FROM RD, PARAMUS, NJ 076523517 (Tel: 2016396620)

✅
NPI Profile Active March 17, 2011

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) March 17, 2011

Registered at 10 FOREST AVE, PARAMUS, NJ 076525242 (Tel: 2012914040)

📍
Business Mailing Address (Initial Record) March 17, 2011

Registered at PO BOX 29008, NEWARK, NJ 071019008 (Tel: 2018459300)

👤
Provider Name / Credentials (Initial Record) March 17, 2011

Recorded as GREGG KLEIN, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 17, 2011

Orthopaedic Surgery (license number reported to NPPES: NJ 25MA07802700)

🟢
Initial NPI Registration & Enumeration September 14, 2005

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1528053642
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 14, 2005
Last Update: April 21, 2023
Sole Proprietor: No

Other Orthopaedic Surgery Specialists in Paramus

All Orthopaedic Surgery Specialists in Paramus

Mailing Address

Po Box 29008

Newark, NJ 071019008

Phone: 2018459300

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.