JOHN THOMAS BRENNAN (MD) – Family Medicine Physician, NPI 1306840178
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for JOHN THOMAS BRENNAN (MD)
Conemaugh Memorial Medical Center, 1086, Franklin Street, Johnstown, Cambria County, Pennsylvania, 15905, United States
JOHNSTOWN, PA 159054305
Phone: (814) 410-8300
Fax: (814) 410-8329
Type: Mailing
4324, Glades Pike, Somerset Township, Somerset County, Pennsylvania, 15501, United States
SOMERSET, PA 155011143
Phone: (814) 445-4585
Fax: (814) 443-2642
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $133.
Total Amount is formed as General ($133) + Research ($0) + Ownership ($0) = $133.
Last reported payment date: 2023-04-10 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($30).
Total Amount
$133
General + Research + Ownership
Payments
8
Total payment records
General Amount
$133
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-04-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $30 |
| Merck Sharp & Dohme LLC | $24 |
| Abbott Laboratories | $18 |
| ABBVIE INC. | $17 |
| Amgen Inc. | $16 |
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: 2010-01-07
PECOS data refreshed: 2026-05-27
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 |
|---|---|---|---|---|
| I20100107000491 | I | Family Practice | PA | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 71 | 68 | $0 |
Insurance plans in this area (ZIP 15905)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | PA | |
| - | CA | |
| - | MD | |
| - | PA | |
| Nurse Practitioner | PA | |
| - | PA | |
| - | PA | |
| - | PA | |
| - | PA | |
| Family Practice | PA |
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