MR. WILLIAM A. MACILWAINE (M.D.) – Ophthalmology Physician, NPI 1215934864

MR. WILLIAM A. MACILWAINE (M.D.) is a healthcare provider. based in Charlottesville, Virginia. specializing in Ophthalmology Physician. They hold the professional credentials M.D.. They hold a License No. 0101032037 (VA). The NPI Number for MR. WILLIAM A. MACILWAINE (M.D.) is 1215934864

Main info

Male
51 Years Of Experience
Accepts Medicare Assignment
Name
MR. WILLIAM A. MACILWAINE (M.D.)
NPI
1215934864
Phone
(434) 977-5160
Address
110 S PANTOPS DR
Enumeration Date
28 June 2005
Last Update Date
18 January 2008

Doctor Profile

Medical School Name
UNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Secondary Phone
8049775160
Graduation Year
1975 (51 years ago)
PAC ID
7315845187
Group Practice PAC ID
8820054430
Professional Enrollment ID
I20100520000753
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

Provider Addresses for MR. WILLIAM A. MACILWAINE (M.D.)

  • 110 S PANTOPS DR

    CHARLOTTESVILLE, VA 229118672

    Phone: (434) 977-5160

    Fax: (434) 977-5202

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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: 2010-05-20

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

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
I20100520000753IOphthalmologyVATBD

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 22911)

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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: 8820054430View full group profile
NameSpecialtyState
O P H T H A L M O L O G YVA
-VA
O P H T H A L M O L O G YVA
O P H T H A L M O L O G YVA
O P T O M E T R YVA
O P H T H A L M O L O G YOH
O P H T H A L M O L O G YVA

Reviews

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Frequently asked questions

What number should I use to identify MR. WILLIAM A. MACILWAINE (M.D.) for billing?
Administrative and clinical systems typically use NPI 1215934864 for MR. WILLIAM A. MACILWAINE (M.D.).
Is MR. WILLIAM A. MACILWAINE (M.D.)'s NPI status active today?
Active status means MR. WILLIAM A. MACILWAINE (M.D.)'s NPI record is not deactivated in the public file.
What services align with MR. WILLIAM A. MACILWAINE (M.D.)'s listing?
MR. WILLIAM A. MACILWAINE (M.D.)'s public classification highlights Ophthalmology Physician. Clinical services aligned with this taxonomy classification.
Is MR. WILLIAM A. MACILWAINE (M.D.) tied to Charlottesville, Virginia?
If you are local to Charlottesville, Virginia, MR. WILLIAM A. MACILWAINE (M.D.) may be relevant to your search.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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