DR. JOHN D CLARK (M.D.) – Neurology Physician, NPI 1235166943
Neurology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
208 NEUROLOGY in KS
Provider Addresses for DR. JOHN D CLARK (M.D.)
1130 W 4TH ST STE 3203
LAWRENCE, KS 660441328
Phone: (785) 830-8324
Fax: (785) 505-5260
Type: Mailing
PO BOX 746649
ATLANTA, GA 303746649
Phone: (904) 202-2092
Fax: (904) 376-4075
Type: Mailing
1340 S 18TH ST STE 104
FERNANDINA BEACH, FL 320344733
Phone: (904) 277-3311
Fax: (904) 277-3343
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 24 Open Payments records for all available years, with a total value of $4,650.
Total Amount is formed as General ($4,650) + Research ($0) + Ownership ($0) = $4,650.
Last reported payment date: 2024-11-08 • Largest payer in this snapshot: EMD Serono, Inc. ($4,323).
Total Amount
$4,650
General + Research + Ownership
Payments
24
Total payment records
General Amount
$4,650
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| EMD Serono, Inc. | $4,323 |
| ABBVIE INC. | $85 |
| Alnylam Pharmaceuticals Inc. | $81 |
| Eisai Inc. | $43 |
| Abbott Laboratories | $35 |
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: 2024-07-19
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 |
|---|---|---|---|---|
| I20240719002468 | I | Neurology | FL | 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 |
|---|---|---|---|---|
| J0585 | Injection, onabotulinumtoxina, 1 unit | 27,305 | 41 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 382 | 304 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 317 | 229 | $0 |
| 95886 | Needle measurement of electrical activity in arm or leg muscles, complete study | 150 | 86 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 85 | 85 | $0 |
Insurance plans in this area (ZIP 66044)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEUROLOGY | KS | 95819 | Measurement and recording of brain wave (EEG) activity, awake and asleep | 12 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E U R O L O G Y | FL | |
| N E U R O L O G Y | GA | |
| Nurse Practitioner | GA | |
| - | FL | |
| Nurse Practitioner | GA | |
| - | FL | |
| Neurology, Epileptologists | GA | |
| Neurology, Ophthalmology | FL | |
| N E U R O L O G Y | FL | |
| Nurse Practitioner | FL |
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