Tricia J. O'Brien, MD
General Practice Physician · Frisco, TX
Tricia J. O'Brien, MD is a general practice physician with a practice address in Frisco, Texas, and NPI 1174727945, issued on Jun 13, 2007. Check the license (Texas N1504, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Tricia J. O'Brien
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- N1504 TX
Self-reported in NPPES; status is on the state search - Practice location
- 8641 5TH St, Frisco, TX 75034
- Phone
- (214) 631-9321
- Enumerated
- Jun 13, 2007
- Record last updated
- Sep 30, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (888) 975-4204
- Entity
- Type 1 · individual
Verify Tricia J. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license N1504Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average general practice physician in 2024
14 Medicare Part D claims, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
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Common questions
What is Tricia J. O'Brien, MD's NPI number?
Tricia J. O'Brien, MD's National Provider Identifier (NPI) is 1174727945, issued on Jun 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Tricia J. O'Brien, MD located?
The NPPES record lists a practice address at 8641 5TH St, Frisco, TX, 75034. Phone: (214) 631-9321. Providers update this record themselves, so call before visiting.
How can I verify Tricia J. O'Brien, MD's license?
NPPES lists Texas license number N1504, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tricia J. O'Brien, MD prescribe under Medicare Part D?
In 2024, Tricia J. O'Brien, MD had 14 Medicare Part D claims; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.