MARK J. YARSHEN (DO) – Family Medicine Physician, NPI 1992714885

MARK J. YARSHEN (DO) is a healthcare provider. based in Oswego, Illinois. specializing in FAMILY PRACTICE. They hold the professional credentials DO. They hold a License No. 036114086 (IL). The NPI Number for MARK J. YARSHEN (DO) is 1992714885

Main info

Male
23 Years Of Experience
Accepts Medicare Assignment
Name
MARK J. YARSHEN (DO)
NPI
1992714885
Phone
(630) 646-4255
Address
6701 US HIGHWAY 34
Enumeration Date
7 August 2006
Last Update Date
29 August 2024

Doctor Profile

Medical School Name
MIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Secondary Phone
9797763777
Graduation Year
2003 (23 years ago)
PAC ID
6002814845
Group Practice PAC ID
5294727921
Professional Enrollment ID
I20201110003328
Address ID
TX778022544BR2801XDRXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience71
Completeness75
Years active:19State licenses:2Digital endpointsOther names

5,041 FAMILY PRACTICE in IL

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Provider Addresses for MARK J. YARSHEN (DO)

  • 34, I 81, Town of Richland, Town of Parish, Oswego County, New York, 13131, United States

    OSWEGO, IL 605439129

    Phone: (630) 646-4255

    Fax: (630) 646-4256

    Type: Location

  • 4421 STATE HIGHWAY 6 S STE 100

    COLLEGE STATION, TX 778456176

    Phone: (979) 690-4460

    Fax: (979) 690-4461

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 4 Open Payments records for all available years, with a total value of $69.

Total Amount is formed as General ($69) + Research ($0) + Ownership ($0) = $69.

Last reported payment date: 2024-04-30 • Largest payer in this snapshot: Novo Nordisk Inc ($35).

Total Amount

$69

General + Research + Ownership

Payments

4

Total payment records

General Amount

$69

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-04-30

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: 2020-11-10

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
I20201110003328IFamily PracticeTXTBD

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
99309Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes2820$0
G0179Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a2613$0
View full utilization report →

Insurance plans in this area (ZIP 60543)

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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: 5294727921View full group profile
NameSpecialtyState
-TX
-TX
Internal Medicine, Internal Medicine, HospitalistLA
Physician AssistantMA
Hospitalist, Family PracticeTX
Pulmonary Disease, Critical Care (Intensivists)TX
Pulmonary Disease, Critical Care (Intensivists), Sleep MedicineTX
-TX
-TX
Family PracticeCO

Reviews

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Frequently asked questions

How do I look up MARK J. YARSHEN (DO) by NPI?
Use NPI 1992714885 when you need to reference MARK J. YARSHEN (DO) in forms, claims, or directories.
Does this profile mean MARK J. YARSHEN (DO) is currently active?
Yes — MARK J. YARSHEN (DO) appears active in the national provider directory.
What kind of provider is MARK J. YARSHEN (DO)?
The page reflects Family Medicine Physician for MARK J. YARSHEN (DO). Clinical services aligned with this taxonomy classification.
Where does public data place MARK J. YARSHEN (DO)?
The snapshot lists Oswego, Illinois for MARK J. YARSHEN (DO); download NPPES for the complete set.
Is MARK J. YARSHEN (DO) a real provider?
This page reflects official NPPES data for NPI 1992714885. Always confirm identity and privileges with the practice and licensing boards.

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