Dr. Timothy D. O'Brien, MD

  • Logan, OH
  • General surgeon
NPI1639136823PAC ID3577465061
Medicare services, 2019
90
Part D claims, 2024
17
Hospital affiliations
1
Industry payments
$59
Medical group
1
Practice address
601 State Route 664N, Logan, OH 43138
Practice phone
Call (740) 380-8000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Hocking Valley Community Hospital

Hospital · Logan, Ohio

See all 3 affiliations

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Dr. Timothy D. O'Brien is a general surgeon in Logan, Ohio

Dr. O'Brien practices at Hocking Valley Community Hospital in Logan, Ohio, part of State of Ohio.

Dr. O'Brien's NPI, 1639136823, was assigned on May 1, 2006. Dr. O'Brien graduated from Ohio State University College of Medicine in 1988. Dr. O'Brien holds Ohio license 35076169.

NPI and contact details
Medicare PAC ID
3577465061
NPI enumeration date
May 1, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(740) 380-8000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Timothy D. O'Brien practices at Hocking Valley Community Hospital in Logan, Ohio

Dr. O'Brien's primary practice is Hocking Valley Community Hospital, at 601 State Route 664N, Logan, OH 43138 in Hocking County. The practice phone is (740) 380-8000.

Source: Dmand AI Affiliation Data

Dr. Timothy D. O'Brien is affiliated with 2 sites of care and 1 medical group

Dr. O'Brien's primary practice is Hocking Valley Community Hospital in Logan, Ohio, part of State of Ohio. The medical group on file is Hocking Valley Medical Group. Dmand AI also links Dr. O'Brien to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. O'Brien

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Timothy D. O'Brien's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Brien practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Hocking Valley Community HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Timothy D. O'Brien is one of 1,056 general surgeons in Ohio

Surgery is Dr. O'Brien's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. O'Brien is licensed in Ohio.

Specialties and state licenses

  • Surgery, OhioPrimaryLicense 35076169 · taxonomy 208600000X

General surgeons near Dr. O'Brien

Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Timothy D. O'Brien billed Medicare for 90 services in 2019

CMS data shows 90 Medicare services from Dr. O'Brien across 3 procedure codes in 2019, all of them office visits. Medicare paid $5,290 for them. Every service was in an office.

Medicare services, 201990
Paid by Medicare$5,290
Procedure codes3

Dr. O'Brien's Medicare services by type, 2018 to 2019

  • 2018
  • 2019
Office and hospital visits
2018: 862019: 905%
Other services
2018: 112019: 0100%
Surgery
2018: 1342019: 0100%

Dr. O'Brien compared with the Ohio median for general surgeons, 2019

  • Dr. O'Brien
  • Ohio median
Medicare services
90vs 16846% below
Part D claims
24vs 4648% below

Medians across 1,031 general surgeons in Ohio with Dmand AI profiles that report each measure.

Dr. O'Brien's most billed Medicare procedure codes, 2019

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. O'Brien

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Timothy D. O'Brien's patients have a median age of 78

Across all payers, Dmand AI patient panel data puts Dr. O'Brien's median patient age at 78, with 59% women.

Dr. O'Brien's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 78

Patient panel by sex, all payers

  • Women59%
  • Men41%

Source: Dmand AI Patient Panel Data

Dr. Timothy D. O'Brien wrote 17 Medicare Part D claims in 2024

In 2024, Dr. O'Brien wrote 17 Medicare Part D claims. 100% of them were for generic drugs. They cover 2 drugs, with $166 in total drug cost. In 2020, CMS named 31 claims across 2 drugs.

Part D claims, 202417
Drugs named by CMS2
Total drug cost$166

Dr. O'Brien's most prescribed drugs by claims, 2021

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. O'Brien's Part D claims, 2024

  • Antibiotics88%15 of 17 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2020 to 2021

  • 2020
  • 2021
Claims for drugs CMS names
2020: 312021: 2423%

Drugs named by CMS: 2 in 2021, 2 in 2020.

See all prescribing by Dr. O'Brien

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Timothy D. O'Brien takes part in Medicare

Dr. O'Brien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Timothy D. O'Brien received $59 in industry payments from 2016 to 2022

CMS Open Payments shows 4 general payments to Dr. O'Brien from 4 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $20.

General payments to Dr. O'Brien by program year, 2016 to 2022

Companies that paid Dr. O'Brien the most, 2016 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. O'Brien

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Timothy D. O'Brien graduated from Ohio State University College of Medicine

Dr. O'Brien graduated from Ohio State University College of Medicine in 1988.

  1. Medical schoolOhio State University College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Timothy D. O'Brien's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Timothy D. O'Brien

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Timothy D. O'Brien's NPI number?

Dr. Timothy D. O'Brien's NPI number is 1639136823. It was assigned on May 1, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Timothy D. O'Brien?

Dr. Timothy D. O'Brien is a general surgeon in Logan, Ohio. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Timothy D. O'Brien practice?

Dr. O'Brien practices at 601 State Route 664N, Logan, OH 43138. Dr. O'Brien's primary practice is Hocking Valley Community Hospital in Logan, Ohio, part of State of Ohio. Dmand AI also links Dr. O'Brien to 1 group practice or clinic.

What is Dr. Timothy D. O'Brien's office phone number?

The practice phone on file for Dr. O'Brien is (740) 380-8000.

What is Dr. Timothy D. O'Brien's medical license number?

Dr. O'Brien holds Ohio license 35076169.

Which hospitals is Dr. Timothy D. O'Brien affiliated with?

Dr. O'Brien practices at Hocking Valley Community Hospital in Logan, Ohio.

What medical group is Dr. Timothy D. O'Brien part of?

Dr. O'Brien is linked to Hocking Valley Medical Group.

Does Dr. Timothy D. O'Brien accept Medicare?

Yes. CMS data shows Dr. O'Brien billed Medicare for 90 services in 2019, and Dr. O'Brien accepts Medicare assignment.

What services does Dr. Timothy D. O'Brien bill to Medicare?

In 2019, Dr. O'Brien's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and office visit, new patient (99202).

Where did Dr. Timothy D. O'Brien go to medical school?

Dr. O'Brien graduated from Ohio State University College of Medicine in 1988.

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What drugs does Dr. Timothy D. O'Brien prescribe most?

In 2021 Medicare Part D data, Dr. O'Brien's most prescribed drugs by claims were Ciprofloxacin HCl and Hydrocodone-Acetaminophen.

Has Dr. Timothy D. O'Brien received payments from drug or device companies?

CMS Open Payments shows $59 in general payments to Dr. O'Brien from 4 companies from 2016 to 2022. The largest total came from Merck Sharp & Dohme Corporation.

How long has Dr. Timothy D. O'Brien been practicing?

Dr. O'Brien graduated from medical school in 1988, 38 years ago.

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