MARK DONALD MACKAY (DO) – Family Medicine Physician, NPI 1427618735
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,705 FAMILY PRACTICE in TX
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Provider Addresses for MARK DONALD MACKAY (DO)
1600, Providence Drive, Waco, McLennan County, Texas, 76707, United States
WACO, TX 767072261
Phone: (254) 313-4200
Fax: (254) 313-4549
Type: Mailing
1600 Providence Dr
Waco, TX 767072261
Phone: (254) 313-4200
Fax: (254) 313-4549
Type: Location
13892 TIMBER WAY
BROADWAY, VA 228153332
Phone: (540) 901-0800
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $31.
Total Amount is formed as General ($31) + Research ($0) + Ownership ($0) = $31.
Last reported payment date: 2024-01-30 • Largest payer in this snapshot: Theratechnologies Inc. ($31).
Total Amount
$31
General + Research + Ownership
Payments
1
Total payment records
General Amount
$31
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-01-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Theratechnologies Inc. | $31 |
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: 2022-06-14
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 |
|---|---|---|---|---|
| I20220614001953 | I | Family Practice | VA | 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 | 564 | 259 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 157 | 157 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 129 | 102 | $0 |
| G0008 | Administration of influenza virus vaccine | 57 | 56 | $0 |
| 90694 | Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 55 | 54 | $0 |
Insurance plans in this area (ZIP 76707)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | VA | |
| Hospitalist, Internal Medicine | VA | |
| Vascular Surgery, General Surgery | VA | |
| - | VA | |
| General Surgery | VA | |
| Family Practice | VA | |
| - | VA | |
| - | VA | |
| - | OH | |
| General Surgery | VA |
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