ROGER D SMALLIGAN (MD, MPH) – Internal Medicine Physician, NPI 1972591782
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,290 INTERNAL MEDICINE in TX
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Provider Addresses for ROGER D SMALLIGAN (MD, MPH)
1400, Coulter Street, Amarillo, Potter County, Texas, 79106, United States
AMARILLO, TX 791061786
Phone: (806) 354-5660
Fax: (806) 354-5717
Type: Location
1400, Wallace Boulevard, Amarillo, Potter County, Texas, 79106, United States
ATTN: CREDENTIALING DEPT.
AMARILLO, TX 791061708
Phone: (806) 354-5585
Fax: (806) 356-4673
Type: Mailing
301 GOVERNORS DR SW
HUNTSVILLE, AL 358015123
Phone: (256) 536-5511
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: 2017-04-03
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 |
|---|---|---|---|---|
| I20170403000802 | I | Internal Medicine | AL | 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 | 49 | 29 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 46 | 30 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 35 | 32 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 23 | 22 | $0 |
Insurance plans in this area (ZIP 79106)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | AL | |
| Internal Medicine | AL | |
| Geriatric Medicine, Internal Medicine | DC | |
| Internal Medicine | AL | |
| Internal Medicine | AL | |
| Family Practice | AL | |
| Family Practice | AL | |
| Family Practice | AL | |
| P S Y C H I A T R Y | LA | |
| Family Practice | AL |
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