MATTHIAS SIMON (M.D., PH.D.) – Nephrology Physician, NPI 1508950130
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,168 NEPHROLOGY in TX
Loading map...
Provider Addresses for MATTHIAS SIMON (M.D., PH.D.)
16620 N US HIGHWAY 281 STE 300
SAN ANTONIO, TX 782322679
Phone: (210) 614-1231
Fax: (210) 499-0811
Type: Mailing
Toepperwein Road, Live Oak, Bexar County, Texas, 78233, United States
LIVE OAK, TX 782333146
Phone: (210) 655-8470
Fax: (210) 967-0276
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 73 Open Payments records for all available years, with a total value of $1,579.
Total Amount is formed as General ($1,579) + Research ($0) + Ownership ($0) = $1,579.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($325).
Total Amount
$1,579
General + Research + Ownership
Payments
73
Total payment records
General Amount
$1,579
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2007-06-13
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 |
|---|---|---|---|---|
| I20070613000401 | 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 |
|---|---|---|---|---|
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 697 | 104 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 414 | 227 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 361 | 101 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 356 | 59 | $0 |
| 99439 | Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 268 | 94 | $0 |
Insurance plans in this area (ZIP 78232)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | TX | |
| N E P H R O L O G Y | TX | |
| N E P H R O L O G Y | TX | |
| N E P H R O L O G Y | TX | |
| N E P H R O L O G Y | TX | |
| Hospitalist, Internal Medicine | TX | |
| N E P H R O L O G Y | TX | |
| N E P H R O L O G Y | TX | |
| Nephrology, Internal Medicine | TX | |
| Internal Medicine | TX |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.