LYNDON F BARNWELL (M.D.) – Neurology with Special Qualifications in Child Neurology Physician, NPI 1205827516
Neurology with Special Qualifications in Child 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 LYNDON F BARNWELL (M.D.)
Houston Post Office, 123, South Main Street, Houston, Washington County, Pennsylvania, 15342, United States
DEPT 548
HOUSTON, TX 772104346
Phone: (713) 331-1850
Fax: (713) 521-7710
Type: Mailing
12951, South Freeway, Houston, Harris County, Texas, 77047, United States
HOUSTON, TX 770471923
Phone: (713) 526-5771
Fax: (713) 526-2036
Type: Location
201 OAK DR S
LAKE JACKSON, TX 775665676
Phone: (979) 334-5300
Fax: (979) 266-9589
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 179 Open Payments records for all available years, with a total value of $3,846.
Total Amount is formed as General ($3,846) + Research ($0) + Ownership ($0) = $3,846.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: ABBVIE INC. ($1,930).
Total Amount
$3,846
General + Research + Ownership
Payments
179
Total payment records
General Amount
$3,846
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $1,930 |
| Alexion Pharmaceuticals, Inc. | $284 |
| Neurocrine BioSciences, Inc. | $231 |
| Novartis Pharmaceuticals Corporation | $218 |
| ACADIA Pharmaceuticals Inc | $137 |
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: 2004-09-14
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 |
|---|---|---|---|---|
| I20040914000847 | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 530 | 101 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 323 | 193 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 135 | 126 | $0 |
| 96127 | Assessment of emotional or behavioral problems | 109 | 105 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 48 | 48 | $0 |
Insurance plans in this area (ZIP 77210)
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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 | 12 | 11 |
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