Dr. Nancy W. Sassower, MD
- Medicare services, 2018
- 657
- Part D claims, 2024
- 804
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 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. Sassower'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. Nancy W. Sassower is an internist in Chicago, Illinois
Dr. Sassower practices at Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.
Dr. Sassower's NPI, 1851384366, was assigned on August 30, 2005. Dr. Sassower holds Illinois license 036093586.
- NPI
- 1851384366NPI Registry (opens in a new tab)
- NPI enumeration date
- August 30, 2005
- NPI status
- Active
- Practice phone
- (312) 926-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Nancy W. Sassower practices at Northwestern Memorial Hospital in Chicago, Illinois
Dr. Sassower'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. Nancy W. Sassower is affiliated with 1 site of care and 1 medical group
Dr. Sassower'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. Nancy W. Sassower's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sassower 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. Nancy W. Sassower is one of 5,652 internists in Illinois
Internal medicine is Dr. Sassower's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sassower is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Sassower
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. Nancy W. Sassower billed Medicare for 657 services in 2018
CMS data shows 657 Medicare services from Dr. Sassower across 10 procedure codes in 2018. Medicare paid $45,673 for them. Every service was in an office.
Dr. Sassower's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 4822018: 38221%
- Other services
- 2017: 2872018: 18237%
- Tests and treatments
- 2017: 2122018: 9356%
Dr. Sassower compared with the Illinois median for internists, 2018
- Dr. Sassower
- Illinois median
- Medicare services
- 657vs 56616% above
- Part D claims
- 456vs 28461% above
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Sassower's most billed Medicare procedure codes, 2018
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. Sassower and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nancy W. Sassower's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Sassower's median patient age at 70, with 79% women.
Dr. Sassower'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
- Women79%
- Men21%
Source: Dmand AI Patient Panel Data
Dr. Nancy W. Sassower wrote 804 Medicare Part D claims in 2024
In 2024, Dr. Sassower wrote 804 Medicare Part D claims for 36 patients. 72% of them were for generic drugs. CMS names the drug for 456 of them, across 26 drugs with 11 or more claims each, at $71,384 in total drug cost. In 2023, CMS named 140 claims across 8 drugs.
Dr. Sassower's Part D claims by kind of drug, 2024
- Generic580 claims72%
- Brand-name and other224 claims28%
Dr. Sassower'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. Sassower's Part D claims, 2024
- Opioids2%20 of 804 claims
- Antibiotics4%35 of 804 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: 1402024: 456226%
Drugs named by CMS: 26 in 2024, 8 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
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Sources for Dr. Nancy W. Sassower'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 Data |
| 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) |
| 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. Nancy W. Sassower
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. Nancy W. Sassower's NPI number?
Dr. Nancy W. Sassower's NPI number is 1851384366. It was assigned on August 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Nancy W. Sassower?
Dr. Nancy W. Sassower is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Nancy W. Sassower practice?
Dr. Sassower practices at 251 E Huron St, Chicago, IL 60611. Dr. Sassower's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.
What is Dr. Nancy W. Sassower's office phone number?
The practice phone on file for Dr. Sassower is (312) 926-2000.
What is Dr. Nancy W. Sassower's medical license number?
Dr. Sassower holds Illinois license 036093586.
Which hospitals is Dr. Nancy W. Sassower affiliated with?
Dr. Sassower practices at Northwestern Memorial Hospital in Chicago, Illinois.
What medical group is Dr. Nancy W. Sassower part of?
Dr. Sassower is linked to Northwestern Medical Faculty Foundation.
Does Dr. Nancy W. Sassower accept Medicare?
Yes. CMS data shows Dr. Sassower billed Medicare for 657 services in 2018.
What services does Dr. Nancy W. Sassower bill to Medicare?
In 2018, Dr. Sassower's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
What drugs does Dr. Nancy W. Sassower prescribe most?
In 2024 Medicare Part D data, Dr. Sassower's most prescribed drugs by claims were Rosuvastatin Calcium, Metoprolol Succinate and Atorvastatin Calcium.
How long has Dr. Nancy W. Sassower been practicing?
Dr. Sassower's NPI was assigned in 2005.
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