DR. JAMES W MCILWAINE (M.D.) – Otolaryngology Physician, NPI 1558352443

DR. JAMES W MCILWAINE (M.D.) is a healthcare provider. based in Washington, Missouri. specializing in OTOLARYNGOLOGY. They hold the professional credentials M.D.. They hold a License No. 2002002082 (MO). The NPI Number for DR. JAMES W MCILWAINE (M.D.) is 1558352443

Main info

Male
26 Years Of Experience
Accepts Medicare Assignment
Name
DR. JAMES W MCILWAINE (M.D.)
NPI
1558352443
Phone
(636) 390-1570
Address
901 PATIENTS FIRST DR
Enumeration Date
31 October 2005
Last Update Date
23 January 2012

Doctor Profile

Medical School Name
UNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Secondary Phone
6363901570
Graduation Year
2000 (26 years ago)
PAC ID
9234168550
Group Practice PAC ID
7517118813
Professional Enrollment ID
I20050808000454
Address ID
MO630904700WA901XXDRXX418
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

320 OTOLARYNGOLOGY in MO

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Provider Addresses for DR. JAMES W MCILWAINE (M.D.)

  • 901, Patients First Drive, Downtown Washington, Washington, Franklin County, Missouri, 63090, United States

    WASHINGTON, MO 630904700

    Phone: (636) 390-1570

    Fax: (636) 390-1571

    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)

CMS reports 24 Open Payments records for all available years, with a total value of $681.

Total Amount is formed as General ($681) + Research ($0) + Ownership ($0) = $681.

Last reported payment date: 2024-12-09 • Largest payer in this snapshot: Inspire Medical Systems, Inc. ($275).

Total Amount

$681

General + Research + Ownership

Payments

24

Total payment records

General Amount

$681

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-09

Latest reported date

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: 2005-08-08

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
I20050808000454IOtolaryngologyMOTBD

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
99203New patient office or other outpatient visit, 30-44 minutes5757$0
99214Established patient office or other outpatient visit, 30-39 minutes5144$0
99204New patient office or other outpatient visit, 45-59 minutes5050$0
99213Established patient office or other outpatient visit, 20-29 minutes4339$0
69210Removal of impacted ear wax4031$0
View full utilization report →

Insurance plans in this area (ZIP 63090)

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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: 7517118813View full group profile
NameSpecialtyState
O T O L A R Y N G O L O G YMO
O T O L A R Y N G O L O G YMO
O T O L A R Y N G O L O G YMO
O T O L A R Y N G O L O G YMO
Physician AssistantMO
O T O L A R Y N G O L O G YIL
Physician AssistantMO
Physician AssistantIL
O T O L A R Y N G O L O G YMO
Nurse PractitionerIN

Reviews

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Frequently asked questions

What NPI should I save for DR. JAMES W MCILWAINE (M.D.)?
Save NPI 1558352443 if you need a stable reference for DR. JAMES W MCILWAINE (M.D.).
Is DR. JAMES W MCILWAINE (M.D.)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
Does DR. JAMES W MCILWAINE (M.D.) list a primary specialty?
If you are matching referrals, note Otolaryngology Physician for DR. JAMES W MCILWAINE (M.D.). Clinical services aligned with this taxonomy classification.
What location metadata exists for DR. JAMES W MCILWAINE (M.D.)?
The page summarizes Washington, Missouri for DR. JAMES W MCILWAINE (M.D.); expand the address list for detail.
How can I contact DR. JAMES W MCILWAINE (M.D.)?
Phone or fax may appear on the official NPI record when supplied — verify before relying on them.

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