Dr. William D. Vandecar IV, MD
- Medicare services, 2024
- 781
- Medicare patients, 2024
- 423
- Part D claims, 2024
- 563
- MIPS score, 2024
- 90
- Industry payments
- $335
- Practice address
- 9 Monroe Pkwy, Lake Oswego, OR 97035
- Practice phone
- Call (503) 557-2020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eye Health Northwest
Lake Oswego, Oregon
Find Dr. Vandecar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William D. Vandecar IV is an ophthalmologist in Lake Oswego, Oregon
Dr. Vandecar practices at Eye Health Northwest in Lake Oswego, Oregon.
Dr. Vandecar's NPI, 1821475427, was assigned on May 3, 2015. Dr. Vandecar graduated from Michigan State University College of Human Medicine in 2015. Dr. Vandecar holds Washington license MD61417092.
- NPI
- 1821475427NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032535455
- NPI enumeration date
- May 3, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 557-2020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William D. Vandecar IV practices at Eye Health Northwest in Lake Oswego, Oregon
Dr. Vandecar's primary practice is Eye Health Northwest, at 9 Monroe Pkwy, Lake Oswego, OR 97035 in Clackamas County. The practice phone is (503) 557-2020.
- Eye Health Northwest9 Monroe Pkwy, Lake Oswego, OR 97035 · Clackamas CountyPhone(503) 557-2020
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William D. Vandecar IV is affiliated with 3 sites of care and 2 medical groups
Dr. Vandecar's primary practice is Eye Health Northwest in Lake Oswego, Oregon. Dmand AI also links Dr. Vandecar to 2 group practices and clinics and 2 medical groups, each 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. William D. Vandecar IV's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vandecar practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eye Health Northwest | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William D. Vandecar IV is one of 272 ophthalmologists in Oregon
Ophthalmology is Dr. Vandecar's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Vandecar's licenses on file in 2 states: Washington and Wisconsin.
Specialties and state licenses
- Ophthalmology, WashingtonPrimary
- Student in an organized health care education/training program, Wisconsin
Ophthalmologists near Dr. Vandecar
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 D. Vandecar IV billed Medicare for 781 services in 2024
CMS data shows 781 Medicare services from Dr. Vandecar across 13 procedure codes in 2024, for 423 Medicare patients. Medicare paid $90,418 for them.
Dr. Vandecar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1412024: 364158%
- Tests and treatments
- 2023: 572024: 294416%
- Surgery
- 2023: 142024: 110686%
- Imaging
- 2023: 02024: 13
Where Dr. Vandecar's Medicare services took place, 2024
- In an office67186%
- In a facility11014%
Dr. Vandecar compared with the Oregon median for ophthalmologists, 2024
- Dr. Vandecar
- Oregon median
- Medicare services
- 781vs 1,10029% below
- Medicare patients
- 423vs 49515% below
- Part D claims
- 493vs 56613% below
Medians across 288 ophthalmologists in Oregon with Dmand AI profiles that report each measure.
Dr. Vandecar'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. William D. Vandecar IV treated 423 Medicare patients in 2024, average age 75
CMS counts 423 Medicare patients who saw Dr. Vandecar in 2024. The largest group is 75 to 84, with 174 patients. 71% of them have high cholesterol, and 70% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Vandecar's median patient age at 70, with 60% women.
Dr. Vandecar's Medicare patients by age, 2024
Dr. Vandecar's Medicare patients by sex, 2024
- Women24758%
- Men17642%
Chronic conditions among Dr. Vandecar's Medicare patients, 2024
- High cholesterol71%
- High blood pressure70%
- Arthritis38%
- Diabetes35%
- Ischemic heart disease24%
- Mood disorders24%
- Chronic kidney disease23%
- Depression22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vandecar's 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
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William D. Vandecar IV wrote 563 Medicare Part D claims in 2024
In 2024, Dr. Vandecar wrote 563 Medicare Part D claims for 195 patients. 55% of them were for generic drugs. CMS names the drug for 493 of them, across 10 drugs with 11 or more claims each, at $41,239 in total drug cost. In 2023, CMS named 59 claims across 4 drugs.
Dr. Vandecar's Part D claims by kind of drug, 2024
- Generic310 claims55%
- Brand-name253 claims45%
Dr. Vandecar'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. Vandecar's Part D claims, 2024
- Antibiotics2%11 of 563 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: 592024: 493736%
Drugs named by CMS: 10 in 2024, 4 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. William D. Vandecar IV scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Vandecar for performance year 2024, reported as part of a group. Dr. Vandecar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 96 procedures of cataract surgery by Dr. Vandecar, more than 74% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Vandecar's MIPS scores, performance year 2024
- 90of 100Final score
- 100of 100Quality
- 89of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Vandecar ranks in Medicare procedure volume
- Cataract surgery
- 74th percentile96 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 D. Vandecar IV received $335 in industry payments from 2024 to 2025
CMS Open Payments shows 9 general payments to Dr. Vandecar from 7 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Tarsus Pharmaceuticals, Inc. paid the most, $168.
General payments to Dr. Vandecar by program year, 2024 to 2025
Companies that paid Dr. Vandecar the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William D. Vandecar IV graduated from Michigan State University College of Human Medicine
Dr. Vandecar graduated from Michigan State University College of Human Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William D. Vandecar IV'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. William D. Vandecar IV
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 D. Vandecar IV's NPI number?
Dr. William D. Vandecar IV's NPI number is 1821475427. It was assigned on May 3, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. William D. Vandecar IV?
Dr. William D. Vandecar IV is an ophthalmologist in Lake Oswego, Oregon. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. William D. Vandecar IV practice?
Dr. Vandecar practices at 9 Monroe Pkwy, Lake Oswego, OR 97035. Dr. Vandecar's primary practice is Eye Health Northwest in Lake Oswego, Oregon. Dmand AI also links Dr. Vandecar to 2 group practices and clinics and 2 medical groups.
What is Dr. William D. Vandecar IV's office phone number?
The practice phone on file for Dr. Vandecar is (503) 557-2020.
What is Dr. William D. Vandecar IV's medical license number?
Dr. Vandecar holds Washington license MD61417092, one of the licenses on file in 2 states.
Which states has Dr. William D. Vandecar IV been licensed in?
Dmand AI has state licenses on file for Dr. Vandecar in Washington and Wisconsin.
Does Dr. William D. Vandecar IV accept Medicare?
Yes. CMS data shows Dr. Vandecar billed Medicare for 781 services in 2024, and Dr. Vandecar accepts Medicare assignment.
What is Dr. William D. Vandecar IV's MIPS score?
Dr. Vandecar's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
How many Medicare patients does Dr. William D. Vandecar IV see?
CMS counts 423 Medicare patients who saw Dr. Vandecar in 2024, with an average age of 75.
What services does Dr. William D. Vandecar IV bill to Medicare?
In 2024, Dr. Vandecar's most billed Medicare services were office visit, established patient (99213), eye exam or test (92136) and surgery: eye (66984).
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Where did Dr. William D. Vandecar IV go to medical school?
Dr. Vandecar graduated from Michigan State University College of Human Medicine in 2015.
What drugs does Dr. William D. Vandecar IV prescribe most?
In 2024 Medicare Part D data, Dr. Vandecar's most prescribed drugs by claims were Prednisolone Acetate, Moxifloxacin and Ketorolac Tromethamine.
Has Dr. William D. Vandecar IV received payments from drug or device companies?
CMS Open Payments shows $335 in general payments to Dr. Vandecar from 7 companies from 2024 to 2025. The largest total came from Tarsus Pharmaceuticals, Inc.
How long has Dr. William D. Vandecar IV been practicing?
Dr. Vandecar graduated from medical school in 2015, 11 years ago.
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