John J O'brien, MD - Medicare in O Fallon, MO

John J O'brien, MD is a medicare enrolled "Family Medicine" physician in O Fallon, Missouri. His current practice location is 2630 Highway K, O Fallon, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 240-5454.

John J O'brien is licensed to practice in Missouri (license number R3E76) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1083689061.

Contact Information

John J O'brien, MD
2630 Highway K,
O Fallon, MO 63368-6624
(636) 240-5454
(618) 980-5335



Physician's Profile

Full NameJohn J O'brien
GenderMale
Speciality
Experience Years
Location2630 Highway K, O Fallon, Missouri
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John J O'brien attended and graduated from in
  NPI Data:
  • NPI Number: 1083689061
  • Provider Enumeration Date: 02/22/2006
  • Last Update Date: 02/24/2021
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for John J O'brien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083689061NPI-NPPES
080171320OtherMORAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine R3E76 (Missouri)Primary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. John J O'brien is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John J O'brien, MD
2630 Highway K,
O Fallon, MO 63368-6624

Ph: (636) 240-5454
John J O'brien, MD
2630 Highway K,
O Fallon, MO 63368-6624

Ph: (636) 240-5454

News Archive

Research suggests importance of vitamin D for good health in the context of COVID-19

A researcher at the UNC Nutrition Research Institute, University of North Carolina revealed that avoiding vitamin D deficiency may help reduce the risk of severe COVID-19.

Purina Cat Chow's initiative for breast cancer awareness

Purina® Cat Chow® understands the unique bond between an owner and their cat and the connection they share. Inspired by a cancer survivor's touching story of the role her cat played during her battle with cancer, Purina Cat Chow began a partnership with Susan G. Komen for the Cure®. A recent Purina Cat Chow national survey of breast cancer survivors with cats underscores this connection by revealing 84 percent of respondents felt their cat had a calming effect during their battle with breast cancer and 76 percent of respondents received daily support from their cat during treatment.

Leucine deprivation triggers apoptosis in melanoma cells

Whitehead Institute researchers have found that depriving human melanoma cells of the essential amino acid leucine can be lethal to the cells, suggesting a possible strategy for therapeutic intervention.

Study: Public attitude toward COVID-19 and its treatments is more "infectious" than disease itself

Public attitude toward COVID-19 and its treatments is more "infectious" than the disease itself, according to a new Northwestern Medicine study using Artificial Intelligence (AI) to analyze tweets about the virus.

Read more News

› Verified 7 days ago


Family Medicine Doctors in O Fallon, MO

Dr. Chandra K Wiewel, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1101 Highway K, O Fallon, MO 63366
Phone: 636-379-4590    Fax: 636-669-2401
Amanda Heidemann, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2630 Highway K, O Fallon, MO 63368
Phone: 636-980-5300    Fax: 636-980-5344
Dr. Ximena Soledad Schnurr, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2630 State Highway K, Ste 100, O Fallon, MO 63368
Phone: 636-240-5454    
Ms. Betty Rachel Varghese, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2 Progress Point Ct, O Fallon, MO 63368
Phone: 636-344-1151    Fax: 636-344-1176
Dr. Amy Elizabeth Grawey, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 207 E Pitman St, O Fallon, MO 63366
Phone: 636-875-1140    Fax: 636-898-1960
Dr. Leonard M Hoffmann, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1101 Highway K, O Fallon, MO 63366
Phone: 636-379-4590    Fax: 636-669-2401

Find & Compare Providers Near You: Find and compare doctors, nursing homes, hospitals, and other health care providers in your area that accept Medicare. Get information like: Find a doctor or clinician that accepts Medicare near you.

Doctors and clinicians: Doctors and clinicians include doctors, clinicians and groups who are qualified to practice in many specialties. Each specialty focuses on certain parts of the body, periods of life, conditions, or primary care. The doctors, clinicians, and groups listed here typically work in an office or clinic setting. Also those who currently accept Medicare are included.

Hospitals: Find information about Medicare-certified hospitals and long-term care hospitals in your area, including Veterans Administration medical centers and military hospitals, across the country. Long-term care hospitals serve critically ill and medically complex patients who require extended hospital care.

Data provided: Information on www.medicareusa.org is built using open data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA).

© 2024 MedicareUsa. All rights reserved. Maintained by the Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services.