Gregory Charles Mallo, M.D.
Orthopaedic Surgery Physician · East Setauket, NY
Gregory Charles Mallo, M.D. is an orthopaedic surgery physician with a practice address in East Setauket, New York, and NPI 1245412295, issued on Dec 1, 2007. Check the license (New York 280603, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Gregory Charles Mallo
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 280603 NY
Self-reported in NPPES; status is on the state search - Practice location
- 6 Technology Dr 100, East Setauket, NY 11733
- Phone
- (631) 689-6698
- Enumerated
- Dec 1, 2007
- Record last updated
- Nov 18, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (631) 751-5548
- Medicare enrollment
- Enrolled (PECOS I20150831000103); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 2005
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 1,339 in New York → Look up another NPI →
Verify Gregory Charles Mallo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 280603Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% more Medicare Part D claims than the average orthopaedic surgery physician in 2024
410 Medicare Part D claims for 236 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 51 claims were for opioids.
Most prescribed
- Methylprednisolone164 claims
- Celecoxib63 claims
- Meloxicam62 claims
- Oxycodone Hcl25 claims
- Cyclobenzaprine Hcl19 claims
- Diclofenac Sodium18 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): 91.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $344.27
4 payments; by number, the most common kind was food and beverage; 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.
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
- True North Medical Group PCSouthampton, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Charles Mallo among 1,339 orthopaedic surgery physician records in New York
Gregory Charles Mallo, M.D. is one of 1,339 orthopaedic surgery physician records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 56% of them.
- NPI issued2007 · 56% of these records are older, 37% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2005 · median 2002 among the 819 with a school on file
- Record last updated2015 · 67% 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 York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 orthopaedic surgery physician records list a practice address in East Setauket
They are 15 of the 972 NPPES records with a practice address in East Setauket, and 1,339 orthopaedic surgery physician records in New York.
All 1,339 in New York → Every provider in East Setauket → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- John Brennan, MDEast Setauket, NY 117331154353977
- Eric Dubrow, MDEast Setauket, NY 117331851499651
- Lorenzo Gamez, M.D.East Setauket, NY 117331386823581
- Richard Hindes, MDEast Setauket, NY 117331922106723
- Fazel Khan, M.D.East Setauket, NY 117331497732820
- Neil Kurtz, MDEast Setauket, NY 117331114019767
- Bruce MeinhardEast Setauket, NY 117331750338943
- Jeffrey Muhlrad, MDEast Setauket, NY 117331497756324
Common questions
What is Gregory Charles Mallo, M.D.'s NPI number?
Gregory Charles Mallo, M.D.'s National Provider Identifier (NPI) is 1245412295, issued on Dec 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Charles Mallo, M.D. located?
The NPPES record lists a practice address at 6 Technology Dr 100, East Setauket, NY, 11733. Phone: (631) 689-6698. Providers update this record themselves, so call before visiting.
How can I verify Gregory Charles Mallo, M.D.'s license?
NPPES lists New York license number 280603, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Charles Mallo, M.D. prescribe under Medicare Part D?
In 2024, Gregory Charles Mallo, M.D. had 410 Medicare Part D claims for 236 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Gregory Charles Mallo, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.3 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.