Physician Profile
Alexander S. Leidner, M.D.
Unclaimed ProfileAbout Dr. Leidner
Based in Chicago, IL, Alexander S. Leidner, M.D. is listed in the NPI registry under nephrology. Alexander graduated from University of Texas Southwestern Medical School at Dallas in 2015. Alexander is also listed as specializing in internal medicine and student in an organized health care education program. Medicare claims data shows Alexander provided 906 services to 477 patients. 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 established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
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
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (312) 695-0596
- Email not available
Practice Locations
675 N SAINT CLAIR ST STE 18-250
Chicago, IL 60611
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
906 services · 477 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Dialysis services, 4 or more physician visits per month (20 years or older) | Treatment | 90960 |
68 |
| Hemodialysis procedure with physician evaluation | Treatment | 90935 |
35 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
458 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
90 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
89 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
63 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
43 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
40 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
20 |
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.
Related specialists at this location 2
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.
Other kidney specialists in Chicago 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Texas Southwestern Medical School at Dallas 8
Other providers in the same specialty who trained at the same institution.
Class of 2015 at University of Texas Southwestern Medical School at Dallas 8
Providers who graduated from the same medical school in the same year.
Also performs Dialysis services, 4 or more physician visits per month (20 years or older) 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Alexander S. Leidner specialize in?
Alexander S. Leidner is a kidney specialist in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nephrology”.
NPI registry
Where is Alexander S. Leidner located?
Alexander S. Leidner is listed at 675 N Saint Clair St Ste 18-250, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Alexander S. Leidner's phone number?
The number on file is (312) 695-0596. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Alexander S. Leidner?
Alexander S. Leidner's National Provider Identifier is 1174918957. 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 Alexander S. Leidner train?
Alexander S. Leidner attended University of Texas Southwestern Medical School at Dallas, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Alexander S. Leidner have?
Alexander S. Leidner has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What does Alexander S. Leidner do most often?
According to Medicare billing data, Alexander S. Leidner provides treatments such as dialysis services, 4 or more physician visits per month and hemodialysis procedure with physician evaluation, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Alexander S. Leidner's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Alexander S. Leidner. 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.