TIMOTHY D. O'BRIEN (MD) – Surgery Physician, NPI 1639136823

TIMOTHY D. O'BRIEN (MD) is a healthcare provider. based in Logan, Ohio. specializing in GENERAL SURGERY. They hold the professional credentials MD. They hold a License No. 35076169 (OH). The NPI Number for TIMOTHY D. O'BRIEN (MD) is 1639136823

Main info

Male
Sole Proprietor
38 Years Of Experience
Accepts Medicare Assignment
Name
TIMOTHY D. O'BRIEN (MD)
NPI
1639136823
Phone
(740) 380-1300
Address
PO BOX 228
Enumeration Date
1 May 2006
Last Update Date
23 November 2020

Doctor Profile

Medical School Name
OHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Secondary Phone
7403808350
Graduation Year
1988 (38 years ago)
PAC ID
3577465061
Group Practice PAC ID
0345238622
Professional Enrollment ID
I20040729000381
Address ID
OH431388541LO541XXNXXX500

Contacts

Secure Messaging
tobrien608371@direct.osumc.edu
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

1,600 GENERAL SURGERY in OH

Provider Addresses for TIMOTHY D. O'BRIEN (MD)

  • 228, Logan Road, Buranda, Woolloongabba, Brisbane City, Queensland, 4120, Australia

    LOGAN, OH 431380228

    Phone: (740) 380-1300

    Type: Mailing

  • 819 STATE ROUTE 664 N STE B

    LOGAN, OH 431388540

    Phone: (740) 380-8140

    Fax: (740) 380-8150

    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: 2004-07-29

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
I20040729000381IGeneral SurgeryOHTBD

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 43138)

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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: 0345238622View full group profile
NameSpecialtyState
Nurse PractitionerOH
-OH
Clinical Social WorkerOH
Orthopedic SurgeryOH
Family Practice, Emergency Medicine, General PracticeOH
Nurse PractitionerOH
General SurgeryOH
U R O L O G YOH
Mental Health CounselorOH
-OH

Reviews

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Frequently asked questions

Is TIMOTHY D. O'BRIEN (MD) listed with a National Provider Identifier?
Yes — TIMOTHY D. O'BRIEN (MD) has NPI 1639136823 on file in the registry.
Is TIMOTHY D. O'BRIEN (MD) still an active registrant?
TIMOTHY D. O'BRIEN (MD) carries an active NPI according to the public dataset.
What area of care is associated with TIMOTHY D. O'BRIEN (MD)?
TIMOTHY D. O'BRIEN (MD)'s record emphasizes Surgery Physician. Clinical services aligned with this taxonomy classification.
Where in Ohio is TIMOTHY D. O'BRIEN (MD) registered?
Use Logan, Ohio as the headline location for TIMOTHY D. O'BRIEN (MD) here.
What does 2 location(s) imply?
2 practice locations appear in the available data.

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