DR. DAVID BENNETT GRINSFELDER (MD) – Internal Medicine Physician, NPI 1568966174
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,297 INTERNAL MEDICINE in TX
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Provider Addresses for DR. DAVID BENNETT GRINSFELDER (MD)
University of Texas Southwestern Medical Center, 5323, Harry Hines Boulevard, Dallas, TX, Dallas, Dallas County, Texas, 75390, United States
DALLAS, TX 753907201
Phone: (214) 226-0668
Type: Mailing
8210 WALNUT HILL LN STE 230
DALLAS, TX 752314488
Phone: (972) 284-7000
Fax: (972) 284-7001
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $187.
Total Amount is formed as General ($187) + Research ($0) + Ownership ($0) = $187.
Last reported payment date: 2024-08-15 • Largest payer in this snapshot: ABIOMED ($54).
Total Amount
$187
General + Research + Ownership
Payments
8
Total payment records
General Amount
$187
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-15
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABIOMED | $54 |
| GlaxoSmithKline, LLC. | $48 |
| Inari Medical, Inc. | $42 |
| Exact Sciences Corporation | $28 |
| Curonix LLC | $15 |
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: 2021-07-21
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 |
|---|---|---|---|---|
| I20210721000815 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,145 | 575 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 888 | 586 | $0 |
| 85025 | Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 787 | 556 | $0 |
| 80061 | Blood test, lipids (cholesterol and triglycerides) | 553 | 524 | $0 |
| 83036 | Hemoglobin a1c level | 517 | 413 | $0 |
Insurance plans in this area (ZIP 75390)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | TX | |
| Internal Medicine | TX | |
| Nurse Practitioner | CT | |
| Internal Medicine | TX | |
| Internal Medicine | TX | |
| - | TX | |
| Internal Medicine | TX | |
| Internal Medicine | TX | |
| Physician Assistant | TX | |
| Internal Medicine | TX |
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