Dr. Susan Louise Alt, MD
- Medicare services, 2024
- 114
- Medicare patients, 2024
- 31
- Part D claims, 2024
- 353
- MIPS score, 2024
- 95
- Hospital affiliations
- 1
- Practice address
- 251 E Huron St, Chicago, IL 60611
- Practice phone
- Call (312) 926-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Alt's professional email, personal email and mobile number
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Dr. Susan Louise Alt is an internist in Chicago, Illinois
Dr. Alt practices at Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.
Dr. Alt's NPI, 1255384277, was assigned on May 19, 2006. Dr. Alt graduated from University of Chicago, Pritzker School of Medicine in 1999. Dr. Alt holds Illinois license 036107356.
- NPI
- 1255384277NPI Registry (opens in a new tab)
- NPI enumeration date
- May 19, 2006
- NPI status
- Active
- Practice phone
- (312) 926-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Susan Louise Alt practices at Northwestern Memorial Hospital in Chicago, Illinois
Dr. Alt's primary practice is Northwestern Memorial Hospital, at 251 E Huron St, Chicago, IL 60611 in Cook County. The practice phone is (312) 926-2000.
- Northwestern Memorial Hospital251 E Huron St, Chicago, IL 60611 · Cook CountyPhone(312) 926-2000
Source: Dmand AI Affiliation Data
Dr. Susan Louise Alt is affiliated with 1 site of care and 1 medical group
Dr. Alt's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare. The medical group on file is Northwestern Medical Faculty Foundation.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Susan Louise Alt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Alt practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Memorial Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northwestern Memorial HealthCare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Susan Louise Alt is one of 5,652 internists in Illinois
Internal medicine is Dr. Alt's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Alt is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Alt
Counts of internists 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. Susan Louise Alt billed Medicare for 114 services in 2024
CMS data shows 114 Medicare services from Dr. Alt across 5 procedure codes in 2024, for 31 Medicare patients. Medicare paid $6,188 for them. Every service was in an office.
Dr. Alt's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 222024: 3559%
- Surgery
- 2023: 302024: 3310%
- Office and hospital visits
- 2023: 252024: 3124%
- Other services
- 2023: 172024: 1512%
Dr. Alt compared with the Illinois median for internists, 2024
- Dr. Alt
- Illinois median
- Medicare services
- 114vs 56680% below
- Medicare patients
- 31vs 20885% below
- Part D claims
- 175vs 28438% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Alt'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Susan Louise Alt treated 31 Medicare patients in 2024, average age 74
CMS counts 31 Medicare patients who saw Dr. Alt in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have high cholesterol, and 45% have arthritis. Their average risk score is 0.69, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Alt's median patient age at 57, with 72% women.
Dr. Alt's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Alt's Medicare patients by sex, 2024
- Women1858%
- Men1342%
Chronic conditions among Dr. Alt's Medicare patients, 2024
- High cholesterol75%
- Arthritis45%
- High blood pressure39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Alt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women72%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Susan Louise Alt wrote 353 Medicare Part D claims in 2024
In 2024, Dr. Alt wrote 353 Medicare Part D claims for 39 patients. 82% of them were for generic drugs. CMS names the drug for 175 of them, across 10 drugs with 11 or more claims each, at $2,867 in total drug cost. In 2023, CMS named 68 claims across 3 drugs.
Dr. Alt's Part D claims by kind of drug, 2024
- Generic288 claims82%
- Brand-name65 claims18%
Dr. Alt'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.
Drug classes CMS tracks in Dr. Alt's Part D claims, 2024
- Antibiotics3%12 of 353 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 682024: 175157%
Drugs named by CMS: 10 in 2024, 3 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. Susan Louise Alt 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. Alt for performance year 2024, reported through an alternative payment model (APM).
Dr. Alt'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.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Susan Louise Alt received $151 in industry payments in 2025
CMS Open Payments shows 5 general payments to Dr. Alt from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. ViiV Healthcare Company paid the most, $100.
Companies that paid Dr. Alt the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Susan Louise Alt graduated from University of Chicago, Pritzker School of Medicine
Dr. Alt graduated from University of Chicago, Pritzker School of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Susan Louise Alt'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 | 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. Susan Louise Alt
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. Susan Louise Alt's NPI number?
Dr. Susan Louise Alt's NPI number is 1255384277. It was assigned on May 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Susan Louise Alt?
Dr. Susan Louise Alt is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Susan Louise Alt practice?
Dr. Alt practices at 251 E Huron St, Chicago, IL 60611. Dr. Alt's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.
What is Dr. Susan Louise Alt's office phone number?
The practice phone on file for Dr. Alt is (312) 926-2000.
What is Dr. Susan Louise Alt's medical license number?
Dr. Alt holds Illinois license 036107356.
Which hospitals is Dr. Susan Louise Alt affiliated with?
Dr. Alt practices at Northwestern Memorial Hospital in Chicago, Illinois.
What medical group is Dr. Susan Louise Alt part of?
Dr. Alt is linked to Northwestern Medical Faculty Foundation.
Does Dr. Susan Louise Alt accept Medicare?
Yes. CMS data shows Dr. Alt billed Medicare for 114 services in 2024.
What is Dr. Susan Louise Alt's MIPS score?
Dr. Alt'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. Susan Louise Alt see?
CMS counts 31 Medicare patients who saw Dr. Alt in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. Susan Louise Alt bill to Medicare?
In 2024, Dr. Alt's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and heart test or procedure (93000).
Where did Dr. Susan Louise Alt go to medical school?
Dr. Alt graduated from University of Chicago, Pritzker School of Medicine in 1999.
What drugs does Dr. Susan Louise Alt prescribe most?
In 2024 Medicare Part D data, Dr. Alt's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. Susan Louise Alt received payments from drug or device companies?
CMS Open Payments shows $151 in general payments to Dr. Alt from 2 companies from 2025 to 2025. The largest total came from ViiV Healthcare Company.
How long has Dr. Susan Louise Alt been practicing?
Dr. Alt graduated from medical school in 1999, 27 years ago.
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