NPPES file of Aug 9, 2026

Gregg Klein, MD

Orthopaedic Surgery Physician · Paramus, NJ

Gregg Klein, MD is an orthopaedic surgery physician with a practice address in Paramus, New Jersey, and NPI 1528053642, issued on Sep 14, 2005. Check the license (New Jersey 25MA07802700, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528053642
Name
Gregg Klein
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
25MA07802700 NJ
Self-reported in NPPES; status is on the state search
Practice location
650 From RD, Paramus, NJ 07652
Phone
(201) 639-6620
Enumerated
Sep 14, 2005
Record last updated
Apr 21, 2023
Fax
(201) 972-8980
Medicare enrollment
Enrolled (PECOS I20051004000725); accepts Medicare assignment
Medical or professional school
Jefferson Medical College Of Thomas Jefferson University, 1997
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 650 From RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Daniel Areson, DOPhysical Medicine & Rehabilitation Physician1770902959
  2. Rocco Bassora, MDSports Medicine (Orthopaedic Surgery) Physician1689734154
  3. Matthew Fata, DOCardiovascular Disease Physician1285197863
  4. Meredith Gardner, PA-C, LAT, ATCPhysician Assistant1962945030
  5. Parisa Heidari, MDVascular Neurology Physician1730649054
  6. Christy Knott, APNGerontology Nurse Practitioner1356068738

Verify Gregg Klein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA07802700
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.5 times the Medicare Part D claims of the average orthopaedic surgery physician in 2024

862 Medicare Part D claims for 357 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D.

  1. Gregg Klein862
  2. Specialty average346

Most prescribed

  1. Meloxicam488 claims
  2. Amoxicillin203 claims
  3. Celecoxib76 claims
  4. Azithromycin37 claims
  5. Diclofenac Sodium12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 75.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score68.7
  2. Costout of 100 · 30%50.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $361,674.81

74 payments; by number, the most common kind was travel and lodging; the largest payer was Zimmer Biomet Holdings, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregg Klein$361,675
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Hackensack Meridian Health Medical Group - Specialty Care PCNorth Bergen, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gregg Klein among 690 orthopaedic surgery physician records in New Jersey

Gregg Klein, MD is one of 690 orthopaedic surgery physician records with a practice address in New Jersey. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1997 · median 2001 among the 444 with a school on file
  • Record last updated2023 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 orthopaedic surgery physician records list a practice address in Paramus

They are 17 of the 1,842 NPPES records with a practice address in Paramus, and 690 orthopaedic surgery physician records in New Jersey.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Michael Ast, M.D.Paramus, NJ 076521427204106
  2. Andrew Beharrie, M.D.Paramus, NJ 076521952361982
  3. Michael Distefano, MDParamus, NJ 076521407883887
  4. Warren Hammerschlag, MDParamus, NJ 076521104981679
  5. Mark Hartzband, MDParamus, NJ 076521386639722
  6. Seth Kane, MDParamus, NJ 076521679614358
  7. Eitan Kohan, M.D.Paramus, NJ 076521619358207
  8. Ajay Lall, M.D., M.S.Paramus, NJ 076521639451214

Common questions

What is Gregg Klein, MD's NPI number?

Gregg Klein, MD's National Provider Identifier (NPI) is 1528053642, issued on Sep 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregg Klein, MD located?

The NPPES record lists a practice address at 650 From RD, Paramus, NJ, 07652. Phone: (201) 639-6620. Providers update this record themselves, so call before visiting.

How can I verify Gregg Klein, MD's license?

NPPES lists New Jersey license number 25MA07802700, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregg Klein, MD prescribe under Medicare Part D?

In 2024, Gregg Klein, MD had 862 Medicare Part D claims for 357 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

What is Gregg Klein, MD's MIPS final score?

The 2023 MIPS final score is 75.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.