Physician Profile
Unclaimed ProfileAbout CLARK
John D Clark, M.D. practises neurology in Fernandina Beach, FL. John is a 1990 graduate of University of Oklahoma College of Medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Clark specialise in?
Dr. Clark is a neurology in Fernandina Beach, FL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEUROLOGY”.
NPI registry
Where is Dr. Clark located?
Dr. Clark is listed at 1340 S 18TH ST STE 104, Fernandina Beach, FL 32034. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Clark's phone number?
The number on file is (904) 277-3311. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Clark?
Dr. Clark's National Provider Identifier is 1235166943. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Clark go to medical school?
Dr. Clark attended University of Oklahoma College of Medicine, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Clark have?
Dr. Clark has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Clark do most often?
According to Medicare billing data, Dr. Clark performs procedures including injection of chemical for paralysis of facial and neck nerve muscles on both sides of face; provides treatments such as needle measurement of electrical activity in arm or leg muscles, complete study and nerve conduction, 5-6 studies, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Clark's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Clark. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (904) 277-3311
- Email not available
Practice Locations
1340 S 18TH ST STE 104
Fernandina Beach, FL 32034
Procedures Most Often Billed to Medicare
15,870 services · 807 patients · 15 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face | Procedure | 64615 |
43 |
| Needle measurement of electrical activity in arm or leg muscles, complete study | Treatment | 95886 |
76 |
| Nerve conduction, 5-6 studies | Treatment | 95909 |
23 |
| Measurement of brain wave activity (eeg), 61-119 minutes | Treatment | 95813 |
18 |
| Measurement of brain wave activity (eeg), 61-119 minutes | Treatment | 95813 |
13 |
| Measurement of brain wave activity (eeg), awake and asleep | Treatment | 95819 |
11 |
| Injection, onabotulinumtoxina, 1 unit | Drug given | J0585 |
15,000 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
210 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
180 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
96 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other neurology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at University of Oklahoma College of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1990 at University of Oklahoma College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face 8
Providers in FL who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.