GERARD DEMERS (D.O.) – Emergency Medicine Physician, NPI 1487626032

GERARD DEMERS (D.O.) is a healthcare provider. based in Eau claire, Wisconsin. specializing in EMERGENCY MEDICINE. They hold the professional credentials D.O.. They hold a License No. 02002377A (IN). The NPI Number for GERARD DEMERS (D.O.) is 1487626032

Main info

Male
28 Years Of Experience
Accepts Medicare Assignment
Name
GERARD DEMERS (D.O.)
NPI
1487626032
Phone
(715) 717-4121
Address
900 W Clairemont Ave
Enumeration Date
6 February 2006
Last Update Date
9 January 2020

Doctor Profile

Medical School Name
ROWAN UNIVERSITY SCHOOL OF OSTEOPATHIC MEDICINE
Secondary Phone
7074458121
Graduation Year
1998 (28 years ago)
PAC ID
2668643016
Group Practice PAC ID
8921993205
Professional Enrollment ID
I20110915000701
Address ID
CA955014736EU2700XSTXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience78
Completeness75
Years active:20State licenses:2Digital endpointsOther names

1,309 EMERGENCY MEDICINE in WI

Provider Addresses for GERARD DEMERS (D.O.)

  • 900 W Clairemont Ave

    Eau Claire, WI 547016122

    Phone: (715) 717-4121

    Type: Location

  • 2661 County Highway I

    Chippewa Falls, WI 547295407

    Phone: (715) 723-1811

    Type: Location

  • 3776, Mactibby Street, Eureka Lemon, San Diego, San Diego County, California, 92117, United States

    SAN DIEGO, CA 921176136

    Phone:

    Type: Mailing

  • Naval Medical Center San Diego, 34800, Bob Wilson Drive, San Diego, San Diego County, California, 92101, United States

    NMCSD- EMERGENCY DEPARTMENT-SUITE 118

    SAN DIEGO, CA 921341005

    Phone: (619) 532-8276

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 3 Open Payments records for all available years, with a total value of $206.

Total Amount is formed as General ($206) + Research ($0) + Ownership ($0) = $206.

Last reported payment date: 2024-02-14 • Largest payer in this snapshot: Janssen Pharmaceuticals, Inc ($114).

Total Amount

$206

General + Research + Ownership

Payments

3

Total payment records

General Amount

$206

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-02-14

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: 2021-07-20

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 3 Medicare enrollment records; no due dates published yet.

Enrollment records

3

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
I20110915000701IEmergency MedicineCATBD
I20140610000553IEmergency MedicineWITBD
I20210720002243IEmergency MedicineVITBD

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
99285Emergency department visit with high level of medical decision making5151$0
99284Emergency department visit with moderate level of medical decision making3534$0
99283Emergency department visit with low level of medical decision making2727$0
99214Established patient office or other outpatient visit, 30-39 minutes2525$0
93010Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only1818$0
View full utilization report →

Insurance plans in this area (ZIP 54701)

Loading plans...

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: 8921993205View full group profile

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

Can I verify GERARD DEMERS (D.O.) with an NPI only?
You can start verification with NPI 1487626032 for GERARD DEMERS (D.O.), then check state licensing separately.
Does CMS list GERARD DEMERS (D.O.) as active?
Yes — GERARD DEMERS (D.O.) is active in the NPI listing used on this page.
What is GERARD DEMERS (D.O.) best known for clinically?
Directory data describes GERARD DEMERS (D.O.) with Emergency Medicine Physician. Clinical services aligned with this taxonomy classification.
What area does GERARD DEMERS (D.O.) serve?
GERARD DEMERS (D.O.)'s listing highlights Eau Claire, Wisconsin; more addresses can appear in NPPES.
How many locations tie to this NPI?
4 practice locations appear in the available data.

Similar Providers

TODD C PHILLIPS (MD)

Emergency Medical Services (Emergency Medicine) Physician
PO BOX 1510
NPI: 1538161773

DR. JAMES ANDREW STANGA (MD)

Family Medicine Physician
Eau Claire Post Office, Orchard Street, Pipestone Township, Berrien County, Michigan, 49102, United States
NPI: 1225027451

DANIEL R LENSELINK (MD)

Emergency Medicine Physician
Eau Claire Post Office, Orchard Street, Pipestone Township, Berrien County, Michigan, 49102, United States
NPI: 1518957018

THOMAS A STOA (MD)

Family Medicine Physician
Eau Claire Post Office, Orchard Street, Pipestone Township, Berrien County, Michigan, 49102, United States
NPI: 1659361152

HOWARD D SCHUMAKER

Emergency Medicine Physician
Eau Claire Post Office, Orchard Street, Pipestone Township, Berrien County, Michigan, 49102, United States
NPI: 1740271329

JOHN T BRENNAN (MD)

Family Medicine Physician
325 Butts Ave
NPI: 1891776977

STEVEN J NOVACHECK (MD)

Family Medicine Physician
1320, West Clairemont Avenue, Eau Claire, Eau Claire County, Wisconsin, 54701, United States
NPI: 1629051891

TIMOTHY J JOHNSON (MD)

Physical Medicine & Rehabilitation Physician
700 West Avenue S
NPI: 1801871298