DR. MARK J HAMILTON (MD) – Family Medicine Physician, NPI 1689889255
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,706 FAMILY PRACTICE in TX
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Provider Addresses for DR. MARK J HAMILTON (MD)
PO BOX 823
AUBREY, TX 762270823
Phone: (903) 752-0612
Type: Mailing
Brookshire's Gas, State Highway 37 South, Mount Vernon, Franklin County, Texas, 75457, United States
MT VERNON, TX 754576550
Phone: (903) 537-8000
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: 2009-02-23
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 |
|---|---|---|---|---|
| I20090223000062 | I | Family Practice | TX | 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 |
|---|---|---|---|---|
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 116 | 102 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 110 | 102 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 85 | 56 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 32 | 31 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 24 | 24 | $0 |
Insurance plans in this area (ZIP 76227)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MI | |
| - | OK | |
| Emergency Medicine | TX | |
| Emergency Medicine | TX | |
| - | TX | |
| Emergency Medicine | FL | |
| Emergency Medicine | TX | |
| Emergency Medicine | TX | |
| - | TX | |
| Emergency Medicine | TX |
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