Dr. Timothy Russell Harrison, MD
- Medicare services, 2024
- 1,975
- Medicare patients, 2024
- 697
- Part D claims, 2024
- 435
- MIPS score, 2024
- 82
- Hospital affiliations
- 1
- Practice address
- 50 State Rte 111, Smithtown, NY 11787
- Practice phone
- Call (914) 241-1050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Caremount Medical
Smithtown, New York
Find Dr. Harrison's professional email, personal email and mobile number
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Dr. Timothy Russell Harrison is an ophthalmologist in Smithtown, New York
Dr. Harrison practices at Caremount Medical in Smithtown, New York.
Dr. Harrison's NPI, 1811991300, was assigned on June 13, 2005. Dr. Harrison holds Virginia license 0101246846.
- NPI
- 1811991300NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517935539
- NPI enumeration date
- June 13, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (914) 241-1050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy Russell Harrison practices at Caremount Medical in Smithtown, New York
Dr. Harrison's primary practice is Caremount Medical, at 50 State Rte 111, Smithtown, NY 11787 in Suffolk County. The practice phone is (914) 241-1050.
- Caremount Medical50 State Rte 111, Smithtown, NY 11787 · Suffolk CountyPhone(914) 241-1050
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Timothy Russell Harrison is affiliated with 3 sites of care and 1 medical group
Dr. Harrison's primary practice is Caremount Medical in Smithtown, New York. Dr. Harrison is also affiliated with St. Catherine of Siena Hospital. The medical group on file is CareMount Medical. Dmand AI also links Dr. Harrison 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. Timothy Russell Harrison's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harrison practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Caremount Medical | 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. Timothy Russell Harrison is one of 1,467 ophthalmologists in New York
Ophthalmology is Dr. Harrison's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Harrison's licenses on file in 2 states: Virginia and New York.
Specialties and state licenses
- Ophthalmology, VirginiaPrimary
- New York license
Ophthalmologists near Dr. Harrison
Counts of ophthalmologists 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. Timothy Russell Harrison billed Medicare for 1,975 services in 2024
CMS data shows 1,975 Medicare services from Dr. Harrison across 12 procedure codes in 2024, for 697 Medicare patients. Medicare paid $269,710 for them.
Dr. Harrison's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2392024: 1,1636%
- Tests and treatments
- 2023: 1992024: 511157%
- Surgery
- 2023: 3252024: 28413%
- Imaging
- 2023: 02024: 17
Where Dr. Harrison's Medicare services took place, 2024
- In an office1,70786%
- In a facility26814%
Dr. Harrison compared with the New York median for ophthalmologists, 2024
- Dr. Harrison
- New York median
- Medicare services
- 1,975vs 1,25857% above
- Medicare patients
- 697vs 43660% above
- Part D claims
- 361vs 64744% below
Medians across 1,557 ophthalmologists in New York with Dmand AI profiles that report each measure.
Dr. Harrison'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy Russell Harrison treated 697 Medicare patients in 2024, average age 78
CMS counts 697 Medicare patients who saw Dr. Harrison in 2024. The largest group is 75 to 84, with 335 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Harrison's median patient age at 71, with 60% women.
Dr. Harrison's Medicare patients by age, 2024
Dr. Harrison's Medicare patients by sex, 2024
- Women45165%
- Men24635%
Chronic conditions among Dr. Harrison's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease38%
- Diabetes30%
- Anxiety27%
- Osteoporosis25%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Harrison's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy Russell Harrison wrote 435 Medicare Part D claims in 2024
In 2024, Dr. Harrison wrote 435 Medicare Part D claims for 186 patients. 70% of them were for generic drugs. CMS names the drug for 361 of them, across 10 drugs with 11 or more claims each, at $10,472 in total drug cost. In 2023, CMS named 493 claims across 8 drugs.
Dr. Harrison's Part D claims by kind of drug, 2024
- Generic305 claims70%
- Brand-name130 claims30%
Dr. Harrison'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. Harrison's Part D claims, 2024
- Antibiotics6%24 of 435 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: 4932024: 36127%
Drugs named by CMS: 10 in 2024, 8 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. Timothy Russell Harrison scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Harrison for performance year 2024, reported as part of a group. Dr. Harrison accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 287 procedures of cataract surgery by Dr. Harrison, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Harrison's MIPS scores, performance year 2024
- 82of 100Final score
- 72.1of 100Quality
- 91of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Harrison ranks in Medicare procedure volume
- Cataract surgery
- 89th percentile287 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. Timothy Russell Harrison received $834 in industry payments from 2016 to 2025
CMS Open Payments shows 19 general payments to Dr. Harrison from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. Alcon Laboratories Inc paid the most, $331.
General payments to Dr. Harrison by program year, 2016 to 2025
General payments to Dr. Harrison by kind, 2016 to 2025
- Food and beverage$79695%
- Education$385%
Companies that paid Dr. Harrison the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Timothy Russell Harrison's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Timothy Russell Harrison
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. Timothy Russell Harrison's NPI number?
Dr. Timothy Russell Harrison's NPI number is 1811991300. It was assigned on June 13, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy Russell Harrison?
Dr. Timothy Russell Harrison is an ophthalmologist in Smithtown, New York. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Timothy Russell Harrison practice?
Dr. Harrison practices at 50 State Rte 111, Smithtown, NY 11787. Dr. Harrison's primary practice is Caremount Medical in Smithtown, New York. Dmand AI also links Dr. Harrison to 1 group practice or clinic.
What is Dr. Timothy Russell Harrison's office phone number?
The practice phone on file for Dr. Harrison is (914) 241-1050.
What is Dr. Timothy Russell Harrison's medical license number?
Dr. Harrison holds Virginia license 0101246846, one of the licenses on file in 2 states.
Which states has Dr. Timothy Russell Harrison been licensed in?
Dmand AI has state licenses on file for Dr. Harrison in Virginia and New York.
Which hospitals is Dr. Timothy Russell Harrison affiliated with?
Dr. Harrison is affiliated with St. Catherine of Siena Hospital.
What medical group is Dr. Timothy Russell Harrison part of?
Dr. Harrison is linked to CareMount Medical.
Does Dr. Timothy Russell Harrison accept Medicare?
Yes. CMS data shows Dr. Harrison billed Medicare for 1,975 services in 2024, and Dr. Harrison accepts Medicare assignment.
What is Dr. Timothy Russell Harrison's MIPS score?
Dr. Harrison's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Timothy Russell Harrison see?
CMS counts 697 Medicare patients who saw Dr. Harrison in 2024, with an average age of 78.
What services does Dr. Timothy Russell Harrison bill to Medicare?
In 2024, Dr. Harrison's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and eye exam or test (92136).
What drugs does Dr. Timothy Russell Harrison prescribe most?
In 2024 Medicare Part D data, Dr. Harrison's most prescribed drugs by claims were Latanoprost, Timolol Maleate and Prednisolone Acetate.
Has Dr. Timothy Russell Harrison received payments from drug or device companies?
CMS Open Payments shows $834 in general payments to Dr. Harrison from 10 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Timothy Russell Harrison been practicing?
Dr. Harrison graduated from medical school in 2000, 26 years ago.
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