STEPHEN ONDER (PA) – Surgical Physician Assistant, NPI 1942266937

STEPHEN ONDER (PA) is a healthcare provider. based in Dayton, Ohio. specializing in Surgical Physician Assistant. They hold the professional credentials PA. They hold a License No. 50.002035RX (OH). The NPI Number for STEPHEN ONDER (PA) is 1942266937

Main info

Male
23 Years Of Experience
Accepts Medicare Assignment
Name
STEPHEN ONDER (PA)
NPI
1942266937
Phone
(937) 208-8000
Address
One Wyoming Street
Enumeration Date
26 April 2006
Last Update Date
7 January 2021

Doctor Profile

Medical School Name
OTHER
Secondary Phone
-
Graduation Year
2003 (23 years ago)
PAC ID
9739091109
Group Practice PAC ID
0840104360
Professional Enrollment ID
I20031104000251

Contacts

Secure Messaging
sonder471283@direct.ketteringhealth.org
FHIR Endpoint
https://khnarr.ketthealth.com/FHIR-PROD/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience73
Completeness85
Years active:20State licenses:2Other namesUpdated within 12 months

Provider Addresses for STEPHEN ONDER (PA)

  • One Wyoming Street

    Dayton, OH 45409

    Phone: (937) 208-8000

    Type: Location

  • 1, Prestige Plaza Drive, South Dayton, Miamisburg, Montgomery County, Ohio, 45342, United States

    STE 550

    MIAMISBURG, OH 453426115

    Phone: (937) 762-1306

    Fax: (937) 522-7626

    Type: Mailing

  • Wyoming Street, Walnut Hills, Ohmer Park, Dayton, Montgomery County, Ohio, 45410, United States

    DAYTON, OH 45409

    Phone: (937) 208-8000

    Type: Location

  • 3535 SOUTHERN BLVD

    KETTERING, OH 454291221

    Phone: (937) 395-8166

    Type: Location

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: 2003-11-04

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
I20031104000251IPhysician AssistantOHTBD

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
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes1919$0
View full utilization report →

Insurance plans in this area (ZIP 45409)

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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: 0840104360View full group profile

Reviews

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Frequently asked questions

Does STEPHEN ONDER (PA) have a public NPI I can cite?
Public records show STEPHEN ONDER (PA) under NPI 1942266937.
Is STEPHEN ONDER (PA)'s NPI status active today?
Active status means STEPHEN ONDER (PA)'s NPI record is not deactivated in the public file.
How should patients interpret STEPHEN ONDER (PA)'s specialty?
The extract shows Surgical Physician Assistant for STEPHEN ONDER (PA). Clinical services aligned with this taxonomy classification.
What city is tied to STEPHEN ONDER (PA)?
The directory associates STEPHEN ONDER (PA) with Dayton, Ohio. Check all listed addresses for suites or satellite offices.
Can I export STEPHEN ONDER (PA)'s record?
You can download the official NPPES record; we summarize key fields for readability.

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