DR. DEREK DONGWOO LEE (M.D.) – Internal Medicine Physician, NPI 1437341328
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,050 EMERGENCY MEDICINE in TX
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Provider Addresses for DR. DEREK DONGWOO LEE (M.D.)
9821 CHAPEL RD APT 1911
WACO, TX 767128796
Phone: (806) 224-5995
Type: Mailing
Providence Health Center, 6901, Medical Parkway, Waco, McLennan County, Texas, 76712, United States
MCLENNAN COUNTY HOSPITALIST SERVICES
WACO, TX 767127910
Phone: (806) 224-5995
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2010-10-25
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 |
|---|---|---|---|---|
| I20101025001266 | I | Emergency 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 | 688 | 345 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 448 | 416 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 355 | 202 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 292 | 274 | $0 |
| 99291 | Critical care, first 30-74 minutes | 190 | 104 | $0 |
Insurance plans in this area (ZIP 76712)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | TX | |
| Internal Medicine, Emergency Medicine | TX | |
| Internal Medicine | TX | |
| - | TX | |
| Internal Medicine | TX | |
| - | TX | |
| Family Practice | TX | |
| Internal Medicine | TX | |
| Family Practice | TX | |
| Family Practice | TX |
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