Dr. Alexander Scott Leidner, MD
- Medicare services, 2024
- 906
- Medicare patients, 2024
- 330
- Part D claims, 2024
- 147
- MIPS score, 2024
- 95
- Hospital affiliations
- 2
- Practice address
- 1101 S Canal St, Chicago, IL 60607
- Practice phone
- Call (312) 274-0202
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rcg Northwestern
Chicago, Illinois
Find Dr. Leidner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Alexander Scott Leidner is a nephrologist in Chicago, Illinois
Dr. Leidner practices at Rcg Northwestern in Chicago, Illinois.
Dr. Leidner's NPI, 1174918957, was assigned on March 30, 2015. Dr. Leidner graduated from University of Texas Southwestern Medical School at Dallas in 2015. Dr. Leidner holds Illinois license 036146665.
- NPI
- 1174918957NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305136185
- NPI enumeration date
- March 30, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (312) 274-0202
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexander Scott Leidner practices at Rcg Northwestern in Chicago, Illinois
Dr. Leidner's primary practice is Rcg Northwestern, at 1101 S Canal St, Chicago, IL 60607 in Cook County. The practice phone is (312) 274-0202.
- Rcg Northwestern1101 S Canal St, Chicago, IL 60607 · Cook CountyPhone(312) 274-0202
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alexander Scott Leidner is affiliated with 5 sites of care and 1 medical group
Dr. Leidner's primary practice is Rcg Northwestern in Chicago, Illinois. Dr. Leidner is also affiliated with Northwestern Memorial Hospital. The medical group on file is Northwestern Medical Faculty Foundation. Dmand AI also links Dr. Leidner to 1 more hospital, 1 dialysis center and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Alexander Scott Leidner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leidner practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rcg Northwestern | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexander Scott Leidner is one of 534 nephrologists in Illinois
Nephrology is Dr. Leidner's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Leidner's licenses on file in 2 states: Illinois and Idaho.
Specialties and state licenses
- Nephrology, IllinoisPrimary
- Internal medicine, Idaho
Nephrologists near Dr. Leidner
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Alexander Scott Leidner billed Medicare for 906 services in 2024
CMS data shows 906 Medicare services from Dr. Leidner across 9 procedure codes in 2024, for 330 Medicare patients. Medicare paid $86,335 for them.
Dr. Leidner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3802024: 763101%
- Tests and treatments
- 2023: 402024: 103158%
- Other services
- 2023: 02024: 40
Where Dr. Leidner's Medicare services took place, 2024
- In an office26029%
- In a facility64671%
Dr. Leidner compared with the Illinois median for nephrologists, 2024
- Dr. Leidner
- Illinois median
- Medicare services
- 906vs 1,28429% below
- Medicare patients
- 330vs 3578% below
- Part D claims
- 39vs 57893% below
Medians across 526 nephrologists in Illinois with Dmand AI profiles that report each measure.
Dr. Leidner's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leidner and other nephrologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alexander Scott Leidner treated 330 Medicare patients in 2024, average age 70
CMS counts 330 Medicare patients who saw Dr. Leidner in 2024. The largest group is 65 to 74, with 121 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 37% are also on Medicaid. Their average risk score is 5.08, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Leidner's median patient age at 70, with 45% women.
Dr. Leidner's Medicare patients by age, 2024
Dr. Leidner's Medicare patients by sex, 2024
- Women16349%
- Men16751%
Chronic conditions among Dr. Leidner's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Heart failure64%
- Ischemic heart disease62%
- Diabetes59%
- Arthritis51%
- Atrial fibrillation39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Leidner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women45%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alexander Scott Leidner wrote 147 Medicare Part D claims in 2024
In 2024, Dr. Leidner wrote 147 Medicare Part D claims for 41 patients. 88% of them were for generic drugs. CMS names the drug for 39 of them, across 3 drugs with 11 or more claims each, at $890 in total drug cost. In 2023, CMS named 13 claims across 1 drug.
Dr. Leidner's Part D claims by kind of drug, 2024
- Generic130 claims88%
- Brand-name17 claims12%
Dr. Leidner's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 132024: 39200%
Drugs named by CMS: 3 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Alexander Scott Leidner scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Leidner for performance year 2024, reported through an alternative payment model (APM). Dr. Leidner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Leidner as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Leidner's MIPS scores, performance year 2024
- 95of 100Final score
- 83of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Alexander Scott Leidner received $24 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Leidner from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Baxter Healthcare paid the most, $24.
Companies that paid Dr. Leidner the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alexander Scott Leidner graduated from University of Texas Southwestern Medical School at Dallas
Dr. Leidner graduated from University of Texas Southwestern Medical School at Dallas in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alexander Scott Leidner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Alexander Scott Leidner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Alexander Scott Leidner's NPI number?
Dr. Alexander Scott Leidner's NPI number is 1174918957. It was assigned on March 30, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander Scott Leidner?
Dr. Alexander Scott Leidner is a nephrologist in Chicago, Illinois. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Alexander Scott Leidner practice?
Dr. Leidner practices at 1101 S Canal St, Chicago, IL 60607. Dr. Leidner's primary practice is Rcg Northwestern in Chicago, Illinois. Dmand AI also links Dr. Leidner to 1 hospital, 1 dialysis center and 1 group practice or clinic.
What is Dr. Alexander Scott Leidner's office phone number?
The practice phone on file for Dr. Leidner is (312) 274-0202.
What is Dr. Alexander Scott Leidner's medical license number?
Dr. Leidner holds Illinois license 036146665, one of the licenses on file in 2 states.
Which states has Dr. Alexander Scott Leidner been licensed in?
Dmand AI has state licenses on file for Dr. Leidner in Illinois and Idaho.
Which hospitals is Dr. Alexander Scott Leidner affiliated with?
Dr. Leidner is affiliated with Northwestern Memorial Hospital. Dmand AI links Dr. Leidner to 1 more hospital.
What medical group is Dr. Alexander Scott Leidner part of?
Dr. Leidner is linked to Northwestern Medical Faculty Foundation.
Does Dr. Alexander Scott Leidner accept Medicare?
Yes. CMS data shows Dr. Leidner billed Medicare for 906 services in 2024, and Dr. Leidner accepts Medicare assignment.
Does Dr. Alexander Scott Leidner offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Leidner as offering telehealth services.
Show 7 more questionsShow fewer questions
What is Dr. Alexander Scott Leidner's MIPS score?
Dr. Leidner's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Alexander Scott Leidner see?
CMS counts 330 Medicare patients who saw Dr. Leidner in 2024, with an average age of 70.
What services does Dr. Alexander Scott Leidner bill to Medicare?
In 2024, Dr. Leidner's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and office visit, established patient (99214).
Where did Dr. Alexander Scott Leidner go to medical school?
Dr. Leidner graduated from University of Texas Southwestern Medical School at Dallas in 2015.
What drugs does Dr. Alexander Scott Leidner prescribe most?
In 2024 Medicare Part D data, Dr. Leidner's most prescribed drugs by claims were Losartan Potassium, Bumetanide and Amlodipine Besylate.
Has Dr. Alexander Scott Leidner received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. Leidner from 1 company from 2018 to 2018. The largest total came from Baxter Healthcare.
How long has Dr. Alexander Scott Leidner been practicing?
Dr. Leidner graduated from medical school in 2015, 11 years ago.
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