Dr. David J. Diaz, MD
- Medicare services, 2024
- 2,752
- Medicare patients, 2024
- 748
- Part D claims, 2024
- 6,977
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 111 Colchester Ave, Burlington, VT 05401
- Practice phone
- Call (802) 847-0000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Diaz's professional email, personal email and mobile number
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Dr. David J. Diaz is an ophthalmologist in Burlington, Vermont
Dr. Diaz practices at University of Vermont Medical Center in Burlington, Vermont, part of University of Vermont Health Network.
Dr. Diaz's NPI, 1548474018, was assigned on May 10, 2007. Dr. Diaz graduated from Perelman School of Medicine at the University of Pennsylvania in 2005. Dr. Diaz holds Vermont license 0420011773.
- NPI
- 1548474018NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577617208
- NPI enumeration date
- May 10, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (802) 847-0000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David J. Diaz practices at University of Vermont Medical Center in Burlington, Vermont
Dr. Diaz's primary practice is University of Vermont Medical Center, at 111 Colchester Ave, Burlington, VT 05401 in Chittenden County. The practice phone is (802) 847-0000.
- University of Vermont Medical Center111 Colchester Ave, Burlington, VT 05401 · Chittenden CountyPhone(802) 847-0000
Source: Dmand AI Affiliation Data
Dr. David J. Diaz is affiliated with 2 sites of care and 1 medical group
Dr. Diaz's primary practice is University of Vermont Medical Center in Burlington, Vermont, part of University of Vermont Health Network. The medical group on file is University of Vermont Medical Center. Dmand AI also links Dr. Diaz to 1 more dialysis center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David J. Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Vermont Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David J. Diaz is one of 46 ophthalmologists in Vermont
Ophthalmology is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Diaz's licenses on file in 2 states: Vermont and Massachusetts.
Specialties and state licenses
- Ophthalmology, VermontPrimary
- Massachusetts license
Ophthalmologists near Dr. Diaz
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. David J. Diaz billed Medicare for 2,752 services in 2024
CMS data shows 2,752 Medicare services from Dr. Diaz across 14 procedure codes in 2024, for 748 Medicare patients. Medicare paid $131,909 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Diaz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,3222024: 1,52716%
- Office and hospital visits
- 2023: 1,0672024: 1,0502%
- Surgery
- 2023: 1562024: 12719%
- Imaging
- 2023: 452024: 487%
Dr. Diaz compared with the Vermont median for ophthalmologists, 2024
- Dr. Diaz
- Vermont median
- Medicare services
- 2,752vs 1,91644% above
- Medicare patients
- 748vs 65814% above
- Part D claims
- 6,886vs 40017.2 times
Medians across 55 ophthalmologists in Vermont with Dmand AI profiles that report each measure.
Dr. Diaz'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. Diaz and other ophthalmologists in Vermont.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David J. Diaz treated 748 Medicare patients in 2024, average age 77
CMS counts 748 Medicare patients who saw Dr. Diaz in 2024. The largest group is 75 to 84, with 317 patients. 65% of them have high blood pressure, and 59% have high cholesterol. 12% are also on Medicaid. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Diaz's median patient age at 76, with 56% women.
Dr. Diaz's Medicare patients by age, 2024
Dr. Diaz's Medicare patients by sex, 2024
- Women42557%
- Men32343%
Chronic conditions among Dr. Diaz's Medicare patients, 2024
- High blood pressure65%
- High cholesterol59%
- Arthritis38%
- Diabetes21%
- Anxiety17%
- Ischemic heart disease17%
- Mood disorders17%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David J. Diaz wrote 6,977 Medicare Part D claims in 2024
In 2024, Dr. Diaz wrote 6,977 Medicare Part D claims for 972 patients. 69% of them were for generic drugs. CMS names the drug for 6,886 of them, across 33 drugs with 11 or more claims each, at $656,348 in total drug cost. In 2023, CMS named 6,036 claims across 30 drugs.
Dr. Diaz's Part D claims by kind of drug, 2024
- Generic4,845 claims69%
- Brand-name2,132 claims31%
Dr. Diaz'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. Diaz's Part D claims, 2024
- Antibiotics0%23 of 6,977 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: 6,0362024: 6,88614%
Drugs named by CMS: 33 in 2024, 30 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. David J. Diaz ranks in the 70th percentile for cataract surgery in Medicare
Dr. Diaz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 77 procedures of cataract surgery by Dr. Diaz, more than 70% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Diaz ranks in Medicare procedure volume
- Cataract surgery
- 70th percentile77 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. David J. Diaz has 1 publication on record
Dmand AI links 1 paper to Dr. Diaz in 2011. Dr. Diaz's most frequent co-authors are Elizabeth Rose Grethen, MD, Christine E. Gupta, MD and Rosemarie L. Jones, MD.
Dr. Diaz's most frequent co-authors
- Elizabeth Rose Grethen, MD1 shared paper
- Christine E. Gupta, MD1 shared paper
- Rosemarie L. Jones, MD1 shared paper
Recent publications by Dr. Diaz
See who Dr. Diaz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Diaz 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. David J. Diaz received $204 in industry payments from 2016 to 2017
CMS Open Payments shows 2 general payments to Dr. Diaz from 2 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $117.
General payments to Dr. Diaz by program year, 2016 to 2017
Companies that paid Dr. Diaz the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David J. Diaz graduated from Perelman School of Medicine at the University of Pennsylvania
Dr. Diaz graduated from Perelman School of Medicine at the University of Pennsylvania in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David J. Diaz'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) |
| 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. David J. Diaz
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. David J. Diaz's NPI number?
Dr. David J. Diaz's NPI number is 1548474018. It was assigned on May 10, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. David J. Diaz?
Dr. David J. Diaz is an ophthalmologist in Burlington, Vermont. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. David J. Diaz practice?
Dr. Diaz practices at 111 Colchester Ave, Burlington, VT 05401. Dr. Diaz's primary practice is University of Vermont Medical Center in Burlington, Vermont, part of University of Vermont Health Network. Dmand AI also links Dr. Diaz to 1 dialysis center.
What is Dr. David J. Diaz's office phone number?
The practice phone on file for Dr. Diaz is (802) 847-0000.
What is Dr. David J. Diaz's medical license number?
Dr. Diaz holds Vermont license 0420011773, one of the licenses on file in 2 states.
Which states has Dr. David J. Diaz been licensed in?
Dmand AI has state licenses on file for Dr. Diaz in Vermont and Massachusetts.
Which hospitals is Dr. David J. Diaz affiliated with?
Dr. Diaz practices at University of Vermont Medical Center in Burlington, Vermont.
What medical group is Dr. David J. Diaz part of?
Dr. Diaz is linked to University of Vermont Medical Center.
Does Dr. David J. Diaz accept Medicare?
Yes. CMS data shows Dr. Diaz billed Medicare for 2,752 services in 2024, and Dr. Diaz accepts Medicare assignment.
How many Medicare patients does Dr. David J. Diaz see?
CMS counts 748 Medicare patients who saw Dr. Diaz in 2024, with an average age of 77.
Show 7 more questionsShow fewer questions
What services does Dr. David J. Diaz bill to Medicare?
In 2024, Dr. Diaz's most billed Medicare services were eye exam or test (92082), eye exam or test (92133) and office visit, established patient (99214).
Where did Dr. David J. Diaz go to medical school?
Dr. Diaz graduated from Perelman School of Medicine at the University of Pennsylvania in 2005.
What drugs does Dr. David J. Diaz prescribe most?
In 2024 Medicare Part D data, Dr. Diaz's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. David J. Diaz received payments from drug or device companies?
CMS Open Payments shows $204 in general payments to Dr. Diaz from 2 companies from 2016 to 2017. The largest total came from Genentech, Inc.
How long has Dr. David J. Diaz been practicing?
Dr. Diaz graduated from medical school in 2005, 21 years ago.
Does Dr. David J. Diaz do research?
Dmand AI links 1 publication to Dr. Diaz.
Who does Dr. David J. Diaz publish with?
Dr. Diaz's most frequent co-authors are Elizabeth Rose Grethen, MD (1 shared paper), Christine E. Gupta, MD (1 shared paper) and Rosemarie L. Jones, MD (1 shared paper).
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