Dr. Ryan Anthony Vasan, MD
- Medicare services, 2024
- 2,508
- Medicare patients, 2024
- 1,312
- Part D claims, 2024
- 1,016
- Publications
- 7
- Hospital affiliations
- 2
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Vasan's professional email, personal email and mobile number
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Dr. Ryan Anthony Vasan is an ophthalmologist in Boston, Massachusetts
Dr. Vasan practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Vasan's NPI, 1548587645, was assigned on April 28, 2010. Dr. Vasan holds Massachusetts license 258951.
- NPI
- 1548587645NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345484523
- NPI enumeration date
- April 28, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan Anthony Vasan practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Vasan's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. Ryan Anthony Vasan is affiliated with 4 sites of care and 1 medical group
Dr. Vasan's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Vasan is also affiliated with Massachusetts Eye and Ear. Dmand AI also links Dr. Vasan to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ryan Anthony Vasan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vasan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ryan Anthony Vasan is one of 617 ophthalmologists in Massachusetts
Ophthalmology is Dr. Vasan's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Vasan is licensed in Massachusetts.
Specialties and state licenses
- Ophthalmology, MassachusettsPrimary
Ophthalmologists near Dr. Vasan
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. Ryan Anthony Vasan billed Medicare for 2,508 services in 2024
CMS data shows 2,508 Medicare services from Dr. Vasan across 16 procedure codes in 2024, for 1,312 Medicare patients. Medicare paid $168,646 for them.
Dr. Vasan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2592024: 1,43314%
- Tests and treatments
- 2023: 9392024: 84110%
- Surgery
- 2023: 1632024: 23444%
- Imaging
- 2023: 112024: 0100%
Where Dr. Vasan's Medicare services took place, 2024
- In an office2,46698%
- In a facility422%
Dr. Vasan compared with the Massachusetts median for ophthalmologists, 2024
- Dr. Vasan
- Massachusetts median
- Medicare services
- 2,508vs 1,59857% above
- Medicare patients
- 1,312vs 5942.2 times
- Part D claims
- 942vs 54573% above
Medians across 612 ophthalmologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Vasan'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. Vasan and other ophthalmologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan Anthony Vasan treated 1,312 Medicare patients in 2024, average age 76
CMS counts 1,312 Medicare patients who saw Dr. Vasan in 2024. The largest group is 75 to 84, with 561 patients. 74% of them have high cholesterol, and 71% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Vasan's median patient age at 75, with 61% women.
Dr. Vasan's Medicare patients by age, 2024
Dr. Vasan's Medicare patients by sex, 2024
- Women81562%
- Men49738%
Chronic conditions among Dr. Vasan's Medicare patients, 2024
- High cholesterol74%
- High blood pressure71%
- Arthritis45%
- Anxiety26%
- Chronic kidney disease26%
- Diabetes25%
- Ischemic heart disease24%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vasan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ryan Anthony Vasan wrote 1,016 Medicare Part D claims in 2024
In 2024, Dr. Vasan wrote 1,016 Medicare Part D claims for 296 patients. 66% of them were for generic drugs. CMS names the drug for 942 of them, across 16 drugs with 11 or more claims each, at $131,715 in total drug cost. In 2023, CMS named 1,167 claims across 16 drugs.
Dr. Vasan's Part D claims by kind of drug, 2024
- Generic671 claims66%
- Brand-name345 claims34%
Dr. Vasan'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. Vasan's Part D claims, 2024
- Antibiotics4%45 of 1,016 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: 1,1672024: 94219%
Drugs named by CMS: 16 in 2024, 16 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. Ryan Anthony Vasan ranks in the 83rd percentile for cataract surgery in Medicare
Dr. Vasan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 191 procedures of cataract surgery by Dr. Vasan, more than 83% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Vasan ranks in Medicare procedure volume
- Cataract surgery
- 83rd percentile191 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ryan Anthony Vasan has 7 publications on record
Dmand AI links 7 papers to Dr. Vasan, published from 2019 to 2022. 2022 was the busiest year, with 2. The most frequent topics are Corneal Diseases, Descemet Stripping Endothelial Keratoplasty and Endothelium, Corneal. Dr. Vasan has published most often in Cornea. Dr. Vasan's most frequent co-authors are John Brian Foster, MD, Giannis Aimant Moustafa, MD and Keith Andrew Walter, MD.
Topics Dr. Vasan writes about most
- Corneal Diseases
- Descemet Stripping Endothelial Keratoplasty
- Endothelium, Corneal
- Glaucoma
- Visual Acuity
Dr. Vasan's most frequent co-authors
- John Brian Foster, MD2 shared papers
- Giannis Aimant Moustafa, MD2 shared papers
- Keith Andrew Walter, MD2 shared papers
Recent publications by Dr. Vasan
Transl Vis Sci Technol
See who Dr. Vasan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Vasan works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ryan Anthony Vasan received $3,060 in industry payments from 2016 to 2025
CMS Open Payments shows 48 general payments to Dr. Vasan from 14 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Alcon Laboratories Inc paid the most, $1,897.
General payments to Dr. Vasan by program year, 2016 to 2025
General payments to Dr. Vasan by kind, 2016 to 2025
- Food and beverage$3,00498%
- Education$552%
Companies that paid Dr. Vasan 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. Ryan Anthony Vasan'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Ryan Anthony Vasan
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. Ryan Anthony Vasan's NPI number?
Dr. Ryan Anthony Vasan's NPI number is 1548587645. It was assigned on April 28, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan Anthony Vasan?
Dr. Ryan Anthony Vasan is an ophthalmologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Ryan Anthony Vasan practice?
Dr. Vasan practices at 55 Fruit Street, Boston, MA 02114. Dr. Vasan's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Vasan to 1 community health center, 1 group practice or clinic and 1 medical group.
What is Dr. Ryan Anthony Vasan's office phone number?
The practice phone on file for Dr. Vasan is (617) 726-2000.
What is Dr. Ryan Anthony Vasan's medical license number?
Dr. Vasan holds Massachusetts license 258951.
Which hospitals is Dr. Ryan Anthony Vasan affiliated with?
Dr. Vasan practices at Massachusetts General Hospital in Boston, Massachusetts. Dr. Vasan is also affiliated with Massachusetts Eye and Ear.
Does Dr. Ryan Anthony Vasan accept Medicare?
Yes. CMS data shows Dr. Vasan billed Medicare for 2,508 services in 2024, and Dr. Vasan accepts Medicare assignment.
How many Medicare patients does Dr. Ryan Anthony Vasan see?
CMS counts 1,312 Medicare patients who saw Dr. Vasan in 2024, with an average age of 76.
What services does Dr. Ryan Anthony Vasan bill to Medicare?
In 2024, Dr. Vasan's most billed Medicare services were office visit, established patient (99213), eye exam or test (92134) and eye exam or test (92133).
What drugs does Dr. Ryan Anthony Vasan prescribe most?
In 2024 Medicare Part D data, Dr. Vasan's most prescribed drugs by claims were Latanoprost, Neomycin-Polymyxin-Dexameth and Prednisolone Acetate.
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Has Dr. Ryan Anthony Vasan received payments from drug or device companies?
CMS Open Payments shows $3,060 in general payments to Dr. Vasan from 14 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Ryan Anthony Vasan been practicing?
Dr. Vasan graduated from medical school in 2009, 17 years ago.
Does Dr. Ryan Anthony Vasan do research?
Dmand AI links 7 publications to Dr. Vasan, published from 2019 to 2022.
Who does Dr. Ryan Anthony Vasan publish with?
Dr. Vasan's most frequent co-authors are John Brian Foster, MD (2 shared papers), Giannis Aimant Moustafa, MD (2 shared papers) and Keith Andrew Walter, MD (2 shared papers).
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