WILLIAM D VANDECAR IV M.D.
NPI 1821475427
Ophthalmology in Lake Oswergo, OR
About William D Vandecar Iv M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM D VANDECAR IV M.D. (NPI 1821475427) is an individual ophthalmology provider in Lake Oswergo, Oregon, licensed in Oregon (MD228671) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Aloha, and is a graduate of Michigan State University College Of Human Medicine (2015).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
William D Vandecar Iv M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show William Vandecar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukie, OR 97222
- Reassigned Medicare billing, Oregon enrollment
- 85 clinicians in this Medicare group
Vancouver, WA 98663
- Reassigned Medicare billing, Washington enrollment
- 16 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 13
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97035 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LAKE OSWEGO, OR 97035
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is William Vandecar's NPI number?
The NPI number for William Vandecar is 1821475427. It was assigned to this individual provider in the NPPES registry on May 3, 2015.
Where is William Vandecar located?
William Vandecar practices at 9 Monroe Parkway Suite 160, Lake Oswergo, OR 97035. The listed phone number is (503) 636-2551.
What is William Vandecar's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is William Vandecar enrolled in Medicare?
Yes. William Vandecar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for William Vandecar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Vandecar reassigns Medicare benefits to 2 organizations: Eye Health Northwest, PC (Milwaukie, OR) and Vancouver Eye Care Ps (Vancouver, WA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Vandecar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Vandecar accept?
Health plans from Anthem Blue Cross and Blue Shield, BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan and 1 other insurer list William Vandecar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for William Vandecar was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# William D Vandecar IV, M.D. · NPI 1821475427
Ophthalmology physician in Lake Oswergo, Oregon. Individual provider, active in the CMS NPPES registry since May 3, 2015.
## Identity
- **NPI:** 1821475427 (Entity type: Individual)
- **Enumerated:** May 3, 2015
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** MD228671 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 9 MONROE PARKWAY, SUITE 160, Lake Oswergo, OR 97035
- **Phone:** (503) 636-2551 · **Fax:** (503) 636-3055
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Eye Health Northwest, PC (NPI 1619959731, Milwaukie, OR); Vancouver Eye Care Ps (NPI 1356375042, Vancouver, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Michigan State University College Of Human Medicine, class of 2015
## Record status
- **NPPES last updated:** February 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821475427) · Data from the CMS NPPES public registry.