Thomas F. O'Brien, M.D.
Anatomic Pathology & Clinical Pathology Physician · Memphis, TN
Thomas F. O'Brien, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Memphis, Tennessee, and NPI 1336124973, issued on Dec 7, 2005. Check the license (Tennessee 018290, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Thomas F. O'Brien
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- 018290 TN
Self-reported in NPPES; status is on the state search - Practice location
- 3495 Hacks Cross RD, Memphis, TN 38125
- Phone
- (901) 526-7444
- Enumerated
- Dec 7, 2005
- Record last updated
- Aug 26, 2024
- Fax
- (901) 526-0791
- Medicaid ID
- 3061998 TN
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 475 in Tennessee → Look up another NPI →
Also registered at 3495 Hacks Cross RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maha Al-Khawaja, M.B.B.S., MDAnatomic Pathology & Clinical Pathology Physician1891955845
- Amy Arias, M.D.Anatomic Pathology & Clinical Pathology Physician1154371854
- Karin Berg, MDAnatomic Pathology Physician1740220953
- Changhyun Choi, MDAnatomic Pathology & Clinical Pathology Physician1114938578
- Bradly Clark, MDAnatomic Pathology Physician1023098928
- Lani Clinton, MD, PHDAnatomic Pathology & Clinical Pathology Physician1396007878
Verify Thomas F. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 018290Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Thomas F. O'Brien among 475 anatomic pathology & clinical pathology physician records in Tennessee
Thomas F. O'Brien, M.D. is one of 475 anatomic pathology & clinical pathology physician records with a practice address in Tennessee. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2024 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Tennessee
There are 475 anatomic pathology & clinical pathology physician records in Tennessee.
All 475 in Tennessee → Every provider in Memphis → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Amy Arias, M.D.Memphis, TN 381251154371854
- Changhyun Choi, MDMemphis, TN 381251114938578
- Patrick Dean, MDMemphis, TN 381251346241064
- Susan Goodman, M.D.Memphis, TN 381251407824626
- Robert LazarMemphis, TN 381251578510293
- Lydia MakapugayMemphis, TN 381251982605820
- Laura Moody, MDMemphis, TN 381251265433890
- Xiao Mu, MD, PHDMemphis, TN 381251962466565
Common questions
What is Thomas F. O'Brien, M.D.'s NPI number?
Thomas F. O'Brien, M.D.'s National Provider Identifier (NPI) is 1336124973, issued on Dec 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thomas F. O'Brien, M.D. located?
The NPPES record lists a practice address at 3495 Hacks Cross RD, Memphis, TN, 38125. Phone: (901) 526-7444. Providers update this record themselves, so call before visiting.
How can I verify Thomas F. O'Brien, M.D.'s license?
NPPES lists Tennessee license number 018290, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Thomas F. O'Brien, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.