Physician Profile
Unclaimed ProfileAbout HEMPHILL
Based in Chattanooga, TN, John Carter Hemphill, MD is listed in the NPI registry under cardiovascular disease (cardiology). John graduated from University of South Carolina School of Medicine in 2001. John is also listed as specializing in cardiovascular disease and interventional cardiology. Medicare claims data shows John provided 2,090 services to 1,495 patients.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (423) 697-2000
- Email not available
Practice Locations
2501 CITICO AVE
Chattanooga, TN 37404
Procedures Most Often Billed to Medicare
2,090 services · 1,495 patients · 15 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
441 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
130 |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
66 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
46 |
| Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist | Treatment | 93459 |
35 |
| Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch | Treatment | 92928 |
33 |
| Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel | Treatment | 92978 |
16 |
| Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist | Treatment | 93460 |
13 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
571 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
208 |
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 cardiovascular diseases at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 26 related providers in 4 groups
Other cardiovascular diseases in Chattanooga 3
Same specialty, same city.
Trained at University of South Carolina School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2001 at University of South Carolina School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in TN who bill this service to Medicare most often.
Common questions
What is Dr. Hemphill's specialty?
Dr. Hemphill is a cardiovascular disease (cardiology) in Chattanooga, TN. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Where can I find Dr. Hemphill?
Dr. Hemphill is listed at 2501 CITICO AVE, Chattanooga, TN 37404. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Hemphill?
The number on file is (423) 697-2000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Hemphill?
Dr. Hemphill's National Provider Identifier is 1912188897. 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
What is Dr. Hemphill's medical education?
Dr. Hemphill attended University of South Carolina School of Medicine, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Hemphill have?
Dr. Hemphill has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Hemphill known for?
According to Medicare billing data, Dr. Hemphill provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and use of a drug to induce depression of consciousness by physician performing a procedure , initial 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Hemphill's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hemphill. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.