Physician Profile
Karen E. Joynt Maddox, MD
Unclaimed ProfileAbout Dr. Joynt Maddox
Based in Saint Louis, MO, Karen E. Joynt Maddox, MD is listed in the NPI registry under cardiovascular disease (cardiology). Karen graduated from Duke University School of Medicine in 2004. Karen is also listed as specializing in cardiovascular disease. According to Medicare claims data, Karen cared for 61 Medicare patients across 107 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes. NPI 1104028786 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (314) 362-1291
- Email not available
Practice Locations
4921 PARKVIEW PL DIV IM CARDIOLOGY, STE 8B
Saint Louis, MO 63110
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease 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
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Procedures & services
Most searched procedures
Office and noninvasive testing
Advanced imaging
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
107 services · 61 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
46 | Less often than most peers in Cardiovascular Disease… |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
41 | Less often than most peers in Cardiovascular Disease… |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
20 | Less often than most peers in Cardiovascular Disease… |
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 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 22 related providers in 3 groups
Other cardiovascular diseases in Saint Louis 7
Same specialty, same city.
Trained at Duke University School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2004 at Duke University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Joynt Maddox specialize in?
Dr. Joynt Maddox is a cardiovascular disease (cardiology) in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Joynt Maddox located?
Dr. Joynt Maddox is listed at 4921 Parkview Pl Div Im Cardiology, Ste 8B, Saint Louis, MO 63110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Joynt Maddox's phone number?
The number on file is (314) 362-1291. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Joynt Maddox's NPI number?
Dr. Joynt Maddox's National Provider Identifier is 1104028786. 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. Joynt Maddox go to medical school?
Dr. Joynt Maddox attended Duke University School of Medicine, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Joynt Maddox been practicing?
Dr. Joynt Maddox has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Joynt Maddox do most often?
According to Medicare billing data, Dr. Joynt Maddox the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Joynt Maddox confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Joynt Maddox. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.