THOMAS F JR. O'BRIEN (M.D.) – Anatomic Pathology & Clinical Pathology Physician, NPI 1336124973
Anatomic Pathology & Clinical Pathology Physician
Main info
Doctor Profile
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NPPES metrics only — not quality of care.
Provider Addresses for THOMAS F JR. O'BRIEN (M.D.)
1211 Union Ave
Suite 300
Memphis, TN 381046638
Phone: (901) 725-7551
Fax: (901) 725-9721
Type: Location
3495, Hacks Cross Road, Southwind, Memphis, Shelby County, Tennessee, 38125, United States
MEMPHIS, TN 381258803
Phone: (901) 526-7444
Fax: (901) 526-0791
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
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Open Payments (CMS)
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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: 2005-03-02
PECOS data refreshed: 2026-06-15
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
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050302000301 | I | Pathology | TN | TBD |
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.
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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 2,106 | 1,177 | $0 |
| 88312 | Special stained specimen slides to identify organisms including interpretation and report | 438 | 403 | $0 |
| 88313 | Special stained specimen slides to examine tissue including interpretation and report | 116 | 109 | $0 |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | 106 | 39 | $0 |
| 88304 | Pathology examination of tissue using a microscope, moderately low complexity | 100 | 93 | $0 |
Insurance plans in this area (ZIP 38104)
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Provider's Procedures
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