Dr. William Dennis, MD
- Medicare services, 2024
- 138
- Medicare patients, 2024
- 97
- Part D claims, 2024
- 50
- MIPS score, 2024
- 93
- Industry payments
- $686
- Practice address
- 2800 North Tenaya Way, Suite 101, Las Vegas, NV 89128
- Practice phone
- Call (702) 838-7755
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tenaya Surgical Center
Surgery Center - Medicare-Certified · Las Vegas, Nevada
Find Dr. Dennis' professional email, personal email and mobile number
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Dr. William Dennis is an ophthalmologist in Las Vegas, Nevada
Dr. Dennis practices at Tenaya Surgical Center in Las Vegas, Nevada.
Dr. Dennis' NPI, 1366855694, was assigned on June 4, 2014. Dr. Dennis graduated from Uniformed Services UHS Fe Hebert School of Med in 2014. Dr. Dennis holds Nevada license 23181.
- NPI
- 1366855694NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032575733
- NPI enumeration date
- June 4, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (702) 838-7755
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Dennis practices at Tenaya Surgical Center in Las Vegas, Nevada
Dr. Dennis' primary practice is Tenaya Surgical Center, at 2800 North Tenaya Way, Suite 101, Las Vegas, NV 89128. The practice phone is (702) 838-7755.
- Tenaya Surgical Center2800 North Tenaya Way, Suite 101, Las Vegas, NV 89128Phone(702) 838-7755
Source: Dmand AI Affiliation Data
Dr. William Dennis is affiliated with 2 sites of care and 1 medical group
Dr. Dennis' primary practice is Tenaya Surgical Center in Las Vegas, Nevada. Dmand AI also links Dr. Dennis to 1 group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William Dennis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dennis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tenaya Surgical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Dennis is one of 126 ophthalmologists in Nevada
Ophthalmology is Dr. Dennis' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Dennis' licenses on file in 2 states: Nevada and Virginia.
Specialties and state licenses
- Ophthalmology, NevadaPrimary
- Virginia license
Ophthalmologists near Dr. Dennis
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. William Dennis billed Medicare for 138 services in 2024
CMS data shows 138 Medicare services from Dr. Dennis across 4 procedure codes in 2024, for 97 Medicare patients. Medicare paid $8,174 for them. Every service was in an office.
Dr. Dennis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 382024: 109187%
- Tests and treatments
- 2023: 02024: 29
Dr. Dennis compared with the Nevada median for ophthalmologists, 2024
- Dr. Dennis
- Nevada median
- Medicare services
- 138vs 1,67092% below
- Medicare patients
- 97vs 60484% below
- Part D claims
- 16vs 55497% below
Medians across 130 ophthalmologists in Nevada with Dmand AI profiles that report each measure.
Dr. Dennis' 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. Dennis and other ophthalmologists in Nevada.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Dennis treated 97 Medicare patients in 2024, average age 73
CMS counts 97 Medicare patients who saw Dr. Dennis in 2024. The largest group is 65 to 74, with 45 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Dennis' median patient age at 70, with 55% women.
Dr. Dennis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Dennis' Medicare patients by sex, 2024
- Women5961%
- Men3839%
Chronic conditions among Dr. Dennis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes52%
- Ischemic heart disease29%
- Mood disorders22%
- COPD20%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dennis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Dennis wrote 50 Medicare Part D claims in 2024
In 2024, Dr. Dennis wrote 50 Medicare Part D claims for 25 patients. 66% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $374 in total drug cost.
Dr. Dennis' Part D claims by kind of drug, 2024
- Generic33 claims66%
- Brand-name17 claims34%
Dr. Dennis' 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.
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. William Dennis 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. Dennis for performance year 2024, reported as part of a group. Dr. Dennis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 220 procedures of cataract surgery by Dr. Dennis, more than 85% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Dennis' MIPS scores, performance year 2024
- 93of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Dennis ranks in Medicare procedure volume
- Cataract surgery
- 85th percentile220 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. William Dennis received $686 in industry payments from 2019 to 2025
CMS Open Payments shows 15 general payments to Dr. Dennis from 7 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 73% of the total. Merz Pharmaceuticals, LLC paid the most, $189.
General payments to Dr. Dennis by program year, 2019 to 2025
General payments to Dr. Dennis by kind, 2019 to 2025
- Food and beverage$49873%
- Education$18927%
Companies that paid Dr. Dennis the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Dennis graduated from Uniformed Services UHS Fe Hebert School of Med
Dr. Dennis graduated from Uniformed Services UHS Fe Hebert School of Med in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Dennis'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 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. William Dennis
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. William Dennis' NPI number?
Dr. William Dennis' NPI number is 1366855694. It was assigned on June 4, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. William Dennis?
Dr. William Dennis is an ophthalmologist in Las Vegas, Nevada. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. William Dennis practice?
Dr. Dennis practices at 2800 North Tenaya Way, Suite 101, Las Vegas, NV 89128. Dr. Dennis' primary practice is Tenaya Surgical Center in Las Vegas, Nevada. Dmand AI also links Dr. Dennis to 1 group practice or clinic and 1 medical group.
What is Dr. William Dennis' office phone number?
The practice phone on file for Dr. Dennis is (702) 838-7755.
What is Dr. William Dennis' medical license number?
Dr. Dennis holds Nevada license 23181, one of the licenses on file in 2 states.
Which states has Dr. William Dennis been licensed in?
Dmand AI has state licenses on file for Dr. Dennis in Nevada and Virginia.
Does Dr. William Dennis accept Medicare?
Yes. CMS data shows Dr. Dennis billed Medicare for 138 services in 2024, and Dr. Dennis accepts Medicare assignment.
What is Dr. William Dennis' MIPS score?
Dr. Dennis' MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. William Dennis see?
CMS counts 97 Medicare patients who saw Dr. Dennis in 2024, with an average age of 73.
What services does Dr. William Dennis bill to Medicare?
In 2024, Dr. Dennis' most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and eye exam or test (92134).
Show 4 more questionsShow fewer questions
Where did Dr. William Dennis go to medical school?
Dr. Dennis graduated from Uniformed Services UHS Fe Hebert School of Med in 2014.
What drugs does Dr. William Dennis prescribe most?
In 2024 Medicare Part D data, Dr. Dennis' most prescribed drugs by claims were Latanoprost.
Has Dr. William Dennis received payments from drug or device companies?
CMS Open Payments shows $686 in general payments to Dr. Dennis from 7 companies from 2019 to 2025. The largest total came from Merz Pharmaceuticals, LLC.
How long has Dr. William Dennis been practicing?
Dr. Dennis graduated from medical school in 2014, 12 years ago.
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