Physician Profile
John A.h. Clark, M.D.
Unclaimed ProfileAbout Dr. Clark
Based in Huntsville, AL, John A.h. Clark, M.D. is listed in the NPI registry under nephrology. John graduated from University of Alabama School of Medicine in 2002. John is also listed as specializing in internal medicine. According to Medicare claims data, John cared for 1,087 Medicare patients across 2,079 services.
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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (256) 533-4626
- Email not available
Practice Locations
2780 BOB WALLACE AVENUE
Huntsville, AL 35805
Conditions Commonly Evaluated or Treated
Within Nephrology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
2,079 services · 1,087 patients · 21 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist | Procedure | 36902 |
63 |
| Insertion of tube into chest or arm artery, each first order branch | Procedure | 36215 |
36 |
| Removal of tunneled central venous tube | Procedure | 36589 |
11 |
| Review by radiologist of arm or leg artery image | Imaging | 75710 |
25 |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
18 |
| Fluoroscopic guidance for insertion or removal of central vein access device | Imaging | 77001 |
16 |
| Hemodialysis procedure with physician evaluation | Treatment | 90935 |
222 |
| Home dialysis services per month (20 years or older) | Treatment | 90966 |
140 |
| Dialysis procedure including 1 evaluation | Treatment | 90945 |
85 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
52 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nephrology specialists at this location 7
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.
Other nephrology specialists in Huntsville 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Alabama School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2002 at University of Alabama School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist 8
Providers in AL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Clark?
Dr. Clark is a nephrology in Huntsville, AL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEPHROLOGY”.
NPI registry
What is Dr. Clark's address?
Dr. Clark is listed at 2780 BOB WALLACE AVENUE, Huntsville, AL 35805. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Clark?
The number on file is (256) 533-4626. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Clark's NPI number?
Dr. Clark's National Provider Identifier is 1578631784. 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 train?
Dr. Clark attended University of Alabama School of Medicine, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Clark been practicing?
Dr. Clark has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Clark perform?
According to Medicare billing data, Dr. Clark performs procedures including insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist, insertion of tube into chest or arm artery, each first order branch and removal of tunneled central venous tube; reads or performs imaging such as review by radiologist of arm or leg artery image and ultrasonic guidance for blood vessel access; provides treatments such as hemodialysis procedure with physician evaluation and home dialysis services per month, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Clark confirmed this information?
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
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.