FREDERICK EARL DIXON (MD) – Sleep Medicine (Internal Medicine) Physician, NPI 1023079613
Sleep Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,430 CARDIOVASCULAR DISEASE (CARDIOLOGY) in TX
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Provider Addresses for FREDERICK EARL DIXON (MD)
North LBJ Drive, San Marcos, Texas, 78666-7235, United States
SAN MARCOS, TX 786665624
Phone: (512) 572-1033
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $34.
Total Amount is formed as General ($34) + Research ($0) + Ownership ($0) = $34.
Last reported payment date: 2023-11-08 • Largest payer in this snapshot: iRhythm Technologies, Inc. ($21).
Total Amount
$34
General + Research + Ownership
Payments
2
Total payment records
General Amount
$34
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-11-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| iRhythm Technologies, Inc. | $21 |
| Edwards Lifesciences Corporation | $13 |
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: 2024-09-05
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 |
|---|---|---|---|---|
| I20240905001684 | I | Cardiovascular Disease (Cardiology) | WI | 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 |
|---|---|---|---|---|
| J0461 | Injection, atropine sulfate, 0.01 mg | 1,395 | 22 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 211 | 186 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 187 | 182 | $0 |
| Q9957 | Injection, perflutren lipid microspheres, per ml | 142 | 71 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 120 | 120 | $0 |
Insurance plans in this area (ZIP 78666)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | TX | 78452 | Nuclear medicine study of vessels of heart using drugs or exercise multiple studies | 24 | 24 |
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | TX | 85610 | Blood test, clotting time | 475 | 62 |
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | TX | 95811 | Sleep monitoring of patient (6 years or older) in sleep lab with continued pressured respiratory assistance by mask or breathing tube | 100 | 88 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| U R O L O G Y | WA | |
| - | WI | |
| O P T O M E T R Y | WI | |
| N E U R O S U R G E R Y | NE | |
| - | WI | |
| Physician Assistant | WI | |
| Family Practice | WI | |
| - | WI | |
| Family Practice | WI | |
| N E U R O L O G Y | WI |
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