Physician Profile
Ronald L. Mars, MD
Unclaimed ProfileAbout Dr. Mars
Based in Jacksonville, FL, Ronald L. Mars, MD is listed in the NPI registry under nephrology. Ronald graduated from St. Louis College of Physicians and Surgeons in 1972. Ronald is also listed as specializing in internal medicine. According to Medicare claims data, Ronald cared for 177 Medicare patients across 370 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, hemodialysis procedure with physician evaluation, and initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes.
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
- (904) 244-4370
- Email not available
Practice Locations
655 W 8TH ST UFJP NEPHROLOGY
Jacksonville, FL 32209
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
Acid-base disorders
Anatomical conditions
Autoimmune conditions
Blood disorders
Blood pressure
Cysts and growths
Diabetes complications
Dialysis complications
Electrolyte disorders
Fluid retention
Genetic disorders
Hormone disorders
Infections
Inflammatory conditions
Kidney damage
Kidney failure
Kidney filter diseases
Lab abnormalities
Metabolic disorders
Multi-organ conditions
Structural kidney issues
Symptoms
Urine abnormalities
Urine symptoms
Vascular conditions
Vascular kidney issues
Procedures & services
Most searched procedures
Consultations
Diagnostic tests
Diagnostics
Dialysis
Dialysis access
- Dialysis Access Physical Exam
- Dialysis Catheter Removal
- Dialysis Fistula Repair
- Temporary Dialysis Line Placement
Diet and nutrition
Imaging
Infusions
Interventional procedures
Lab tests
- 24-hour urine test
- Comprehensive Metabolic Panel
- Kidney Function Blood Test
- Parathyroid hormone monitoring
- Urine protein check
- Urine sediment test
Medication management
- Active Vitamin D Therapy
- Resistant Blood Pressure Medication Adjustment
- Steroid Therapy For Kidney Inflammation
Medication therapy
- Acid reducer treatment for kidneys
- Phosphate binder therapy
- Potassium lowering treatment
- Red blood cell booster injections
- Water pill adjustment
Patient education
Prevention
Procedures
Specialized therapies
Supportive care
Surgical procedures
Transplant care
Vascular access
Procedures Most Often Billed to Medicare
370 services · 177 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Hemodialysis procedure with physician evaluation | Treatment | 90935 |
137 |
| Dialysis procedure including 1 evaluation | Treatment | 90945 |
32 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
137 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
47 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
17 |
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.
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 kidney specialists in Jacksonville 8
Same specialty, same city.
Trained at St. Louis College of Physicians and Surgeons 3
Other providers in the same specialty who trained at the same institution.
More connections — 9 related providers in 2 groups
Class of 1972 at St. Louis College of Physicians and Surgeons 1
Providers who graduated from the same medical school in the same year.
Also performs Hemodialysis procedure with physician evaluation 8
Providers in FL who bill this service to Medicare most often.
Common questions
What is Dr. Mars's specialty?
Dr. Mars is a kidney specialist in Jacksonville, FL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nephrology”.
NPI registry
Where can I find Dr. Mars?
Dr. Mars is listed at 655 W 8Th St Ufjp Nephrology, Jacksonville, FL 32209. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Mars?
The number on file is (904) 244-4370. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Mars's NPI number?
Dr. Mars's National Provider Identifier is 1386613602. 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. Mars's medical education?
Dr. Mars attended St. Louis College of Physicians and Surgeons, graduating in 1972. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mars been practicing?
Dr. Mars has 54 years experience. Calculated from a graduation year of 1972, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Mars known for?
According to Medicare billing data, Dr. Mars provides treatments such as hemodialysis procedure with physician evaluation and dialysis procedure including 1 evaluation, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mars confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mars. 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.