MICHAEL J LANDGARTEN (MD) – Nephrology Physician, NPI 1588665780
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,168 NEPHROLOGY in TX
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Provider Addresses for MICHAEL J LANDGARTEN (MD)
1600 WATERS RIDGE DR STE A
LEWISVILLE, TX 750576039
Phone: (214) 466-7230
Fax: (214) 466-7236
Type: Mailing
Lyndon B Johnson Freeway, Dallas, Dallas County, Texas, 75243, United States
702
DALLAS, TX 752406344
Phone: (214) 466-7230
Fax: (214) 466-7236
Type: Location
3315, Colorado Boulevard, The Ridge at North Texas, Carter, Denton, Denton County, Texas, 76210, United States
SUITE 102
DENTON, TX 762106884
Phone: (940) 320-1708
Fax: (940) 565-5457
Type: Mailing
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 $204.
Total Amount is formed as General ($204) + Research ($0) + Ownership ($0) = $204.
Last reported payment date: 2024-01-18 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($125).
Total Amount
$204
General + Research + Ownership
Payments
2
Total payment records
General Amount
$204
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-01-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $125 |
| Travere Therapeutics, Inc. | $79 |
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: 2005-04-21
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 |
|---|---|---|---|---|
| I20050421000529 | I | Nephrology | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 624 | 197 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 329 | 136 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 182 | 74 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 174 | 156 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 170 | 104 | $0 |
Insurance plans in this area (ZIP 75057)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | TX | 90935 | Hemodialysis procedure with one physician evaluation | 130 | 67 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Critical Care (Intensivists), Emergency Medicine | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| Pulmonary Disease, Critical Care (Intensivists), Internal Medicine | DC | |
| Internal Medicine | MI | |
| Critical Care (Intensivists) | PA | |
| Internal Medicine | TX | |
| Internal Medicine | TX | |
| Pulmonary Disease | TX | |
| Internal Medicine | OH |
Reviews
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