THOMAS BRIAN CALLISTER (M.D.) – Hospitalist Physician, NPI 1124011705
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,575 INTERNAL MEDICINE in NV
Provider Addresses for THOMAS BRIAN CALLISTER (M.D.)
4790 Caughlin Pkwy
#530
Reno, NV 895190907
Phone: (775) 329-0823
Fax: (775) 323-5438
Type: Location
850, Harvard Way, Reno, Washoe County, Nevada, 89502, United States
RENO, NV 895022055
Phone: (775) 982-5262
Fax: (775) 982-5496
Type: Mailing
Renown Regional Medical Center, 1155, Mill Street, Reno, Washoe County, Nevada, 89502, United States
RENO, NV 895021576
Phone: (775) 982-7878
Fax: (775) 982-4196
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2009-12-15
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 |
|---|---|---|---|---|
| I20091215000610 | I | Internal Medicine | NV | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 326 | 126 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 163 | 94 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 87 | 87 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 38 | 20 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 21 | 21 | $0 |
Insurance plans in this area (ZIP 89519)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | NV | |
| - | NV | |
| H O S P I T A L I S T | NV | |
| Hospitalist, Internal Medicine | NV | |
| Physical Medicine And Rehabilitation | MI | |
| Physician Assistant | NV | |
| - | NV | |
| - | NV | |
| Thoracic Surgery | WV | |
| Thoracic Surgery, Vascular Surgery | PA |
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