MICHAEL JAMES WALLS (M.D.) – Specialist, NPI 1679579791
Specialist
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 MICHAEL JAMES WALLS (M.D.)
Box Canyon Court, Grapevine, Tarrant County, Texas, 76051, United States
GRAPEVINE, TX 760999703
Phone: (936) 520-8983
Fax: (936) 463-6508
Type: Mailing
I 45, Conroe, Montgomery County, Texas, United States
CONROE, TX 773045077
Phone: (936) 520-8983
Fax: (936) 463-6508
Type: Location
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 $44.
Total Amount is formed as General ($44) + Research ($0) + Ownership ($0) = $44.
Last reported payment date: 2024-04-04 • Largest payer in this snapshot: Novo Nordisk Inc ($44).
Total Amount
$44
General + Research + Ownership
Payments
2
Total payment records
General Amount
$44
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-04-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $44 |
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: 2017-03-29
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 |
|---|---|---|---|---|
| I20170329000893 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 987 | 247 | $0 |
| 90970 | Dialysis services, per day, less than full month service (20 years or older) | 689 | 13 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 472 | 163 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 359 | 164 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 121 | 104 | $0 |
Insurance plans in this area (ZIP 76099)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | TX | 90935 | Hemodialysis procedure with one physician evaluation | 349 | 101 |
| INTERNAL MEDICINE | TX | 90961 | Dialysis services (2-3 physician visits per month), patient 20 years of age and older | 143 | 98 |
| INTERNAL MEDICINE | TX | 90966 | Home dialysis services per month, patient 20 years of age or older | 93 | 14 |
Reviews
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