NPPES file of Aug 9, 2026

Gregory Edward Cox, MD

Ophthalmology Physician · Hamilton, NJ

Gregory Edward Cox, MD is an ophthalmology physician with a practice address in Hamilton, New Jersey, and NPI 1386607844, issued on Apr 7, 2006. Check the license (New Jersey MA58113, 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
1386607844
Name
Gregory Edward Cox
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
MA58113 NJ
Self-reported in NPPES; status is on the state search
Practice location
2 Hamilton Health Place, Hamilton, NJ 08690
Phone
(609) 586-0849
Enumerated
Apr 7, 2006
Record last updated
Jun 24, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(609) 586-7018
Medicaid ID
6944205 NJ
Medicare enrollment
Enrolled (PECOS I20041230000217); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 1991
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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Verify Gregory Edward Cox 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 MA58113
    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

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77% more Medicare Part D claims than the average ophthalmology physician in 2024

2,686 Medicare Part D claims for 676 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.

  1. Gregory Cox2,686
  2. Specialty average1,518

Most prescribed

  1. Latanoprost590 claims
  2. Prednisolone Acetate251 claims
  3. Neomycin-Polymyxin-Dexameth243 claims
  4. Ofloxacin222 claims
  5. Flurbiprofen Sodium180 claims
  6. Dorzolamide-Timolol163 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 MIPS final score for 2023 (Medicare payment program): 98.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score97.6
  2. Costout of 100 · 30%99.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $151.03

8 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Cox$151.03
  2. Specialty average$4,535.02

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. Refocus Eye Health OF NJ PCHamilton, NJ

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

Gregory Edward Cox among 631 ophthalmology physician records in New Jersey

Gregory Edward Cox, MD is one of 631 ophthalmology physician records with a practice address in New Jersey. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 18% of them.

  • NPI issued2006 · 18% of these records are older, 30% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1991 · median 1993 among the 454 with a school on file
  • Record last updated2020 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in New Jersey

There are 631 ophthalmology physician records in New Jersey.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Robert Donohue, MDHamilton, NJ 086901659385144
  2. Ranjodh Singh, M.D.Trenton, NJ 086901164958294
  3. Leon Huppert, MDLakewood, NJ 087011407815947
  4. Steven Leff, MDLakewood, NJ 087011073586871
  5. Ashwinee Ragam, M.D.Lakewood, NJ 087011811315278
  6. Moshe Rothkopf, MDLakewood, NJ 087011720049588
  7. Adil Ahmed, DOBrick, NJ 087231003372715
  8. Jerome Berkowitz, M.D.Brick, NJ 087241811161334

Common questions

What is Gregory Edward Cox, MD's NPI number?

Gregory Edward Cox, MD's National Provider Identifier (NPI) is 1386607844, issued on Apr 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Edward Cox, MD located?

The NPPES record lists a practice address at 2 Hamilton Health Place, Hamilton, NJ, 08690. Phone: (609) 586-0849. Providers update this record themselves, so call before visiting.

How can I verify Gregory Edward Cox, MD's license?

NPPES lists New Jersey license number MA58113, 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 Gregory Edward Cox, MD prescribe under Medicare Part D?

In 2024, Gregory Edward Cox, MD had 2,686 Medicare Part D claims for 676 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Gregory Edward Cox, MD's MIPS final score?

The 2023 MIPS final score is 98.7 of 100. 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.