Physician Profile
Unclaimed ProfileAbout ARMSTRONG
William Chadwick Armstrong, MD practices cardiovascular disease (cardiology) in Chattanooga, TN. William is a 2014 graduate of University of Mississippi School of Medicine. William is also listed as specializing in student in an organized health care education program and cardiovascular disease. According to Medicare claims data, William cared for 2,709 Medicare patients across 3,013 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
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
3,013 services · 2,709 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
202 |
| Ct scan of blood vessels of chest with contrast | Imaging | 71275 |
98 |
| Ct scan of blood vessels and grafts of heart with contrast | Imaging | 75574 |
54 |
| Mri scan of heart before and after contrast | Imaging | 75561 |
33 |
| Nuclear medicine studies of blood flow in heart muscle at rest and with stress | Imaging | 78492 |
27 |
| Analysis of data from ct study of heart blood vessels to assess severity of heart artery disease, with interpretation and report | Imaging | 75580 |
21 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
648 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
322 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
255 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
140 |
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 — 27 related providers in 4 groups
Other cardiovascular diseases in Chattanooga 3
Same specialty, same city.
Trained at University of Mississippi School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2014 at University of Mississippi School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Nuclear medicine studies of heart muscle at rest and with stress and spect 8
Providers in TN who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Armstrong?
Dr. Armstrong 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
What is Dr. Armstrong's address?
Dr. Armstrong 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 can I make an appointment with Dr. Armstrong?
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 Dr. Armstrong's NPI number?
Dr. Armstrong's National Provider Identifier is 1902225014. 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. Armstrong train?
Dr. Armstrong attended University of Mississippi School of Medicine, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Armstrong been practicing?
Dr. Armstrong has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Armstrong perform?
According to Medicare billing data, Dr. Armstrong performs imaging including nuclear medicine studies of heart muscle at rest and with stress and spect and ct scan of blood vessels of chest with contrast; provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Armstrong confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Armstrong. 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.