DANIEL DONG WOOK HYUN (MD) – Neurology Physician, NPI 1194726448
Neurology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,738 NEUROLOGY in TX
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Provider Addresses for DANIEL DONG WOOK HYUN (MD)
1200, Avenue Y, Gravesend, Brooklyn, Kings County, New York, 11235, United States
SUITE 230
SAN ANTONIO, TX 782124803
Phone: (210) 226-3326
Fax: (210) 226-3371
Type: Location
3922 WISEMAN BLVD STE 304
SAN ANTONIO, TX 782511685
Phone: (210) 226-3326
Fax: (210) 226-3371
Type: Location
31 STONEWALL BND
SAN ANTONIO, TX 782561618
Phone: (210) 226-3326
Fax: (210) 226-3371
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 594 Open Payments records for all available years, with a total value of $20,088.
Total Amount is formed as General ($20,088) + Research ($0) + Ownership ($0) = $20,088.
Last reported payment date: 2024-12-26 • Largest payer in this snapshot: ABBVIE INC. ($6,142).
Total Amount
$20,088
General + Research + Ownership
Payments
594
Total payment records
General Amount
$20,088
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $6,142 |
| UCB, Inc. | $5,368 |
| ACADIA Pharmaceuticals Inc | $851 |
| Teva Pharmaceuticals USA, Inc. | $612 |
| Neurocrine BioSciences, Inc. | $524 |
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: 2004-04-24
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 |
|---|---|---|---|---|
| I20040424000432 | I | Neurology | 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 | 764 | 471 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 155 | 155 | $0 |
| 99483 | Assessment of and care planning for patient with impaired thought processing, typically 60 minutes | 118 | 118 | $0 |
| 95886 | Needle measurement of electrical activity in arm or leg muscles, complete study | 86 | 45 | $0 |
| 95819 | Measurement of brain wave activity (eeg), awake and asleep | 49 | 49 | $0 |
Insurance plans in this area (ZIP 78212)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEUROLOGY | TX | 95819 | Measurement and recording of brain wave (EEG) activity, awake and asleep | 87 | 87 |
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