Dr. Matthew O. Horowitz, MD
- Medicare services, 2024
- 1,267
- Medicare patients, 2024
- 440
- Part D claims, 2024
- 2,424
- MIPS score, 2024
- 93
- Hospital affiliations
- 1
- Practice address
- 560 Northern Blvd, Great Neck, NY 11021
- Practice phone
- Call (516) 498-9790
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aristocrat Office Based Surgery Inc
Great Neck, New York
Find Dr. Horowitz's professional email, personal email and mobile number
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Dr. Matthew O. Horowitz is a gastroenterologist in Great Neck, New York
Dr. Horowitz practices at Aristocrat Office Based Surgery Inc in Great Neck, New York.
Dr. Horowitz's NPI, 1225110901, was assigned on October 20, 2006. Dr. Horowitz graduated from State University of New York at Stony Brook, School of Medicine in 1992. Dr. Horowitz holds New York license 197394.
- NPI
- 1225110901NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123120623
- NPI enumeration date
- October 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (516) 498-9790
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew O. Horowitz practices at Aristocrat Office Based Surgery Inc in Great Neck, New York
Dr. Horowitz's primary practice is Aristocrat Office Based Surgery Inc, at 560 Northern Blvd, Great Neck, NY 11021 in Nassau County. The practice phone is (516) 498-9790.
- Aristocrat Office Based Surgery Inc560 Northern Blvd, Great Neck, NY 11021 · Nassau CountyPhone(516) 498-9790
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Matthew O. Horowitz is affiliated with 3 sites of care and 1 medical group
Dr. Horowitz's primary practice is Aristocrat Office Based Surgery Inc in Great Neck, New York. Dr. Horowitz is also affiliated with North Shore University Hospital. The medical group on file is Northwell Health Physician Partners Cardiology at Great Neck. Dmand AI also links Dr. Horowitz to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Matthew O. Horowitz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Horowitz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aristocrat Office Based Surgery Inc | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew O. Horowitz is one of 1,583 gastroenterologists in New York
Gastroenterology is Dr. Horowitz's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Horowitz is licensed in New York.
Specialties and state licenses
- Gastroenterology, New YorkPrimary
Gastroenterologists near Dr. Horowitz
Counts of gastroenterologists 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. Matthew O. Horowitz billed Medicare for 1,267 services in 2024
CMS data shows 1,267 Medicare services from Dr. Horowitz across 15 procedure codes in 2024, for 440 Medicare patients. Medicare paid $172,006 for them. Every service was in an office.
Dr. Horowitz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4332024: 4483%
- Surgery
- 2023: 4252024: 4045%
- Other services
- 2023: 1082024: 299177%
- Tests and treatments
- 2023: 962024: 11621%
Dr. Horowitz compared with the New York median for gastroenterologists, 2024
- Dr. Horowitz
- New York median
- Medicare services
- 1,267vs 4213.0 times
- Medicare patients
- 440vs 23686% above
- Part D claims
- 2,026vs 3825.3 times
Medians across 1,551 gastroenterologists in New York with Dmand AI profiles that report each measure.
Dr. Horowitz'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Horowitz and other gastroenterologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Matthew O. Horowitz treated 440 Medicare patients in 2024, average age 75
CMS counts 440 Medicare patients who saw Dr. Horowitz in 2024. The largest group is 65 to 74, with 213 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 5% are also on Medicaid. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Horowitz's median patient age at 62, with 48% women.
Dr. Horowitz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Horowitz's Medicare patients by sex, 2024
- Women22651%
- Men21449%
Chronic conditions among Dr. Horowitz's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis43%
- Ischemic heart disease36%
- Diabetes24%
- Anxiety22%
- Osteoporosis20%
- Cancer19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Horowitz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women48%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Matthew O. Horowitz wrote 2,424 Medicare Part D claims in 2024
In 2024, Dr. Horowitz wrote 2,424 Medicare Part D claims for 415 patients. 91% of them were for generic drugs. CMS names the drug for 2,026 of them, across 42 drugs with 11 or more claims each, at $112,745 in total drug cost. In 2023, CMS named 2,083 claims across 46 drugs.
Dr. Horowitz's Part D claims by kind of drug, 2024
- Generic2,207 claims91%
- Brand-name217 claims9%
Dr. Horowitz'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. Horowitz's Part D claims, 2024
- Antibiotics2%41 of 2,424 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: 2,0832024: 2,0263%
Drugs named by CMS: 42 in 2024, 46 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. Matthew O. Horowitz scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Horowitz for performance year 2024, reported through an alternative payment model (APM). Dr. Horowitz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Horowitz as offering telehealth. CMS counts 236 procedures of colonoscopy by Dr. Horowitz, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Horowitz's MIPS scores, performance year 2024
- 93of 100Final score
- 79.8of 100Quality
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Horowitz ranks in Medicare procedure volume
- Colonoscopy
- 95th percentile236 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 77th percentile104 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. Matthew O. Horowitz received $248 in industry payments from 2021 to 2024
CMS Open Payments shows 4 general payments to Dr. Horowitz from 4 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 100% of the total. Madrigal Pharmaceuticals paid the most, $142.
General payments to Dr. Horowitz by program year, 2021 to 2024
Companies that paid Dr. Horowitz the most, 2021 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew O. Horowitz graduated from State University of New York at Stony Brook, School of Medicine
Dr. Horowitz graduated from State University of New York at Stony Brook, School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew O. Horowitz'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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. Matthew O. Horowitz
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. Matthew O. Horowitz's NPI number?
Dr. Matthew O. Horowitz's NPI number is 1225110901. It was assigned on October 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew O. Horowitz?
Dr. Matthew O. Horowitz is a gastroenterologist in Great Neck, New York. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Matthew O. Horowitz practice?
Dr. Horowitz practices at 560 Northern Blvd, Great Neck, NY 11021. Dr. Horowitz's primary practice is Aristocrat Office Based Surgery Inc in Great Neck, New York. Dmand AI also links Dr. Horowitz to 1 group practice or clinic.
What is Dr. Matthew O. Horowitz's office phone number?
The practice phone on file for Dr. Horowitz is (516) 498-9790.
What is Dr. Matthew O. Horowitz's medical license number?
Dr. Horowitz holds New York license 197394.
Which hospitals is Dr. Matthew O. Horowitz affiliated with?
Dr. Horowitz is affiliated with North Shore University Hospital.
What medical group is Dr. Matthew O. Horowitz part of?
Dr. Horowitz is linked to Northwell Health Physician Partners Cardiology at Great Neck.
Does Dr. Matthew O. Horowitz accept Medicare?
Yes. CMS data shows Dr. Horowitz billed Medicare for 1,267 services in 2024, and Dr. Horowitz accepts Medicare assignment.
Does Dr. Matthew O. Horowitz offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Horowitz as offering telehealth services.
What is Dr. Matthew O. Horowitz's MIPS score?
Dr. Horowitz's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).
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How many Medicare patients does Dr. Matthew O. Horowitz see?
CMS counts 440 Medicare patients who saw Dr. Horowitz in 2024, with an average age of 75.
What services does Dr. Matthew O. Horowitz bill to Medicare?
In 2024, Dr. Horowitz's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and surgery: digestive system (45380).
Where did Dr. Matthew O. Horowitz go to medical school?
Dr. Horowitz graduated from State University of New York at Stony Brook, School of Medicine in 1992.
What drugs does Dr. Matthew O. Horowitz prescribe most?
In 2024 Medicare Part D data, Dr. Horowitz's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Atorvastatin Calcium.
Has Dr. Matthew O. Horowitz received payments from drug or device companies?
CMS Open Payments shows $248 in general payments to Dr. Horowitz from 4 companies from 2021 to 2024. The largest total came from Madrigal Pharmaceuticals.
How long has Dr. Matthew O. Horowitz been practicing?
Dr. Horowitz graduated from medical school in 1992, 34 years ago.
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