MADISON MESSMER DO
NPI 1164125571
Emergency Medicine in Dayton, OH

Q: What is Madison Messmer's NPI number?

The NPI number for Madison Messmer is 1164125571. It was assigned to this individual provider in the NPPES registry on March 24, 2023.

Q: What is Madison Messmer's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Madison Messmer was last updated on May 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since March 24, 2023PECOS Enrolled

405 W GRAND AVE, DAYTON, OH 45405(937) 723-3248 Get Directions Write a Review

NPPES record last updated: May 6, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 6, 2026, Mar 24, 2023 (2 updates tracked since 2023).

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About Madison Messmer Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MADISON MESSMER DO (NPI 1164125571) is an individual emergency medicine provider in Dayton, Ohio, licensed in Oregon (DO228745) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS, is affiliated with Legacy Meridian Park Medical Center, and maintains a secondary practice location in Silverton.

NPPES Registry Identity

NPI1164125571

Entity TypeIndividualFemale

Primary Taxonomy207P00000X

Provider Legal NameMADISON MESSMERCredential: DO

Location Address405 W GRAND AVEDayton, OH 45405-7538

Mailing Address405 W Grand AveDayton, OH 45405-7538 · (937) 723-3248

Phone(937) 723-3248

Sole ProprietorNo

Medical School CMSNew York Medical CollegeGraduated 2022

Enumeration DateMarch 24, 2023

Last NPPES UpdateMay 6, 20262 updates tracked since enumeration

NPPES CertifiedMay 6, 2026

✔ NPI 1164125571 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in OR · DO228745

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

405 W GRAND AVE, Dayton, OH 45405

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Secondary Practice Location 1

Location 1342 Fairview StSilverton, OR 97381-1917 · Phone (503) 873-1500

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Madison Messmer Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1254800089

PECOS Enrollment IDI20260520004268

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Madison Messmer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Silverton Health

1,978 mi

Clinic/Center

861 W MAIN ST
Molalla, OR 97038

Reassigned Medicare billing, Oregon enrollment
568 clinicians in this Medicare group

NPI 1861116055 (503) 874-5653

Northwest Acute Care Specialists PC

1,980 mi

Emergency Medicine

101 SW MAIN ST STE 940
Portland, OR 97204

Reassigned Medicare billing, Oregon enrollment
163 clinicians in this Medicare group

NPI 1215983200 (503) 464-9034

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Legacy Meridian Park Medical Center

Acute Care Hospitals · Tualatin, OR

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number380089

Location19300 SW 65th AvenueTualatin, OR 97062 · Washington County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45405 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$84.72 typical visit price

range $54.34 – $166.65

Typical copayment $21.18 (range $13.58 – $41.66)

Most-billed visit code 99203

Established Patient

$96.44 typical visit price

range $17.10 – $135.40

Typical copayment $24.11 (range $4.27 – $33.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LARA MARTINEZ

Emergency Medicine