WILLIAM D IV VANDECAR (M.D.) – Ophthalmology Physician, NPI 1821475427

WILLIAM D IV VANDECAR (M.D.) is a healthcare provider. based in Lake oswergo, Oregon. specializing in OPHTHALMOLOGY. They hold the professional credentials M.D.. They hold a License No. MD61417092 (WA). The NPI Number for WILLIAM D IV VANDECAR (M.D.) is 1821475427

Main info

Male
11 Years Of Experience
Accepts Medicare Assignment
Name
WILLIAM D IV VANDECAR (M.D.)
NPI
1821475427
Phone
(503) 636-2551
Address
9 MONROE PARKWAY
Enumeration Date
3 May 2015
Last Update Date
6 February 2026

Doctor Profile

Medical School Name
MICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Secondary Phone
36069646911116
Graduation Year
2015 (11 years ago)
PAC ID
9032535455
Group Practice PAC ID
5799673364
Professional Enrollment ID
I20230807001037
Address ID
WA986632753VA3200XSTXX300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness85
Years active:11State licenses:3Digital endpointsOther names

343 OPHTHALMOLOGY in OR

Provider Addresses for WILLIAM D IV VANDECAR (M.D.)

  • 9 MONROE PARKWAY

    SUITE 160

    LAKE OSWERGO, OR 97035

    Phone: (503) 636-2551

    Fax: (503) 636-3055

    Type: Location

  • UW HOSPITALS & CLINICS 600 HIGHLAND AVE

    MADISON, WI 537920001

    Phone:

    Type: Mailing

  • 3200 MAIN ST

    VANCOUVER, WA 986632753

    Phone: (360) 696-4691

    Type: Mailing

  • 18345 SW Alexander St

    Suite A

    Aloha, OR 97003

    Phone: (503) 642-2505

    Fax: (503) 649-9556

    Type: Location

  • PO BOX 22009

    PORTLAND, OR 97269

    Phone: (503) 558-7372

    Fax: (503) 344-5140

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 3 Open Payments records for all available years, with a total value of $65.

Total Amount is formed as General ($65) + Research ($0) + Ownership ($0) = $65.

Last reported payment date: 2024-07-17 • Largest payer in this snapshot: ABBVIE INC. ($24).

Total Amount

$65

General + Research + Ownership

Payments

3

Total payment records

General Amount

$65

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-07-17

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2026-02-20

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20230807001037IOphthalmologyWATBD
I20260220003304IOphthalmologyORTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99213Established patient office or other outpatient visit, 20-29 minutes6455$0
99214Established patient office or other outpatient visit, 30-39 minutes3131$0
99203New patient office or other outpatient visit, 30-44 minutes2525$0
99204New patient office or other outpatient visit, 45-59 minutes2121$0
92014Established patient complete exam of visual system2121$0
View full utilization report →

Insurance plans in this area (ZIP 97035)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 5799673364View full group profile
NameSpecialtyState
O P H T H A L M O L O G YWA
O P T O M E T R YWA
O P H T H A L M O L O G YWA
O P H T H A L M O L O G YWA
O P H T H A L M O L O G YWA
O P T O M E T R YWA
O P H T H A L M O L O G YMI

Reviews

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Frequently asked questions

How do payers reference WILLIAM D IV VANDECAR (M.D.)?
For WILLIAM D IV VANDECAR (M.D.), use NPI 1821475427 as the unique 10-digit identifier.
Is WILLIAM D IV VANDECAR (M.D.) still an active registrant?
WILLIAM D IV VANDECAR (M.D.) carries an active NPI according to the public dataset.
How would a patient describe WILLIAM D IV VANDECAR (M.D.)'s focus?
For WILLIAM D IV VANDECAR (M.D.), the primary taxonomy reads as Ophthalmology Physician. Clinical services aligned with this taxonomy classification.
Is WILLIAM D IV VANDECAR (M.D.) located near Lake Oswergo?
WILLIAM D IV VANDECAR (M.D.) currently maps to Lake Oswergo, Oregon in this extract.
Can I trust this NPI listing for WILLIAM D IV VANDECAR (M.D.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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