Dr. Susannah E. Spiess, MD
- Medicare services, 2024
- 549
- Medicare patients, 2024
- 342
- Part D claims, 2024
- 532
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 2650 Ridge Ave, Evanston, IL 60201
- Practice phone
- Call (847) 570-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Spiess' 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. Susannah E. Spiess is a gastroenterologist in Evanston, Illinois
Dr. Spiess practices at Evanston Hospital in Evanston, Illinois, part of Endeavor Health.
Dr. Spiess' NPI, 1427076082, was assigned on July 18, 2006. Dr. Spiess graduated from Northwestern University Feinberg Medical School in 1990. Dr. Spiess holds Illinois license 036084828.
- NPI
- 1427076082NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941233886
- NPI enumeration date
- July 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (847) 570-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Susannah E. Spiess practices at Evanston Hospital in Evanston, Illinois
Dr. Spiess' primary practice is Evanston Hospital, at 2650 Ridge Ave, Evanston, IL 60201 in Cook County. The practice phone is (847) 570-2000.
- Evanston Hospital2650 Ridge Ave, Evanston, IL 60201 · Cook CountyPhone(847) 570-2000
Source: Dmand AI Affiliation Data
Dr. Susannah E. Spiess is affiliated with 3 sites of care and 1 medical group
Dr. Spiess' primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dr. Spiess is also affiliated with Swedish Hospital. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Dr. Spiess to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Susannah E. Spiess' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Spiess practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Evanston Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Susannah E. Spiess is one of 771 gastroenterologists in Illinois
Gastroenterology is Dr. Spiess' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Spiess is licensed in Illinois.
Specialties and state licenses
- Gastroenterology, IllinoisPrimary
Gastroenterologists near Dr. Spiess
Counts of gastroenterologists 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. Susannah E. Spiess billed Medicare for 549 services in 2024
CMS data shows 549 Medicare services from Dr. Spiess across 9 procedure codes in 2024, for 342 Medicare patients. Medicare paid $60,444 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Spiess' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 3232024: 24125%
- Other services
- 2023: 2802024: 22021%
- Office and hospital visits
- 2023: 1422024: 8838%
Dr. Spiess compared with the Illinois median for gastroenterologists, 2024
- Dr. Spiess
- Illinois median
- Medicare services
- 549vs 49810% above
- Medicare patients
- 342vs 30711% above
- Part D claims
- 448vs 37021% above
Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.
Dr. Spiess' 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.
Need commercial claims for Dr. Spiess?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Spiess and other gastroenterologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Susannah E. Spiess treated 342 Medicare patients in 2024, average age 74
CMS counts 342 Medicare patients who saw Dr. Spiess in 2024. The largest group is 65 to 74, with 199 patients. 75% of them have high cholesterol, and 55% have high blood pressure. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Spiess' median patient age at 67, with 69% women.
Dr. Spiess' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Spiess' Medicare patients by sex, 2024
- Women25775%
- Men8525%
Chronic conditions among Dr. Spiess' Medicare patients, 2024
- High cholesterol75%
- High blood pressure55%
- Arthritis44%
- Osteoporosis21%
- Cancer18%
- Diabetes18%
- Ischemic heart disease17%
- Mood disorders15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Spiess' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Susannah E. Spiess wrote 532 Medicare Part D claims in 2024
In 2024, Dr. Spiess wrote 532 Medicare Part D claims for 379 patients. 88% of them were for generic drugs. CMS names the drug for 448 of them, across 8 drugs with 11 or more claims each, at $17,438 in total drug cost. In 2023, CMS named 472 claims across 9 drugs.
Dr. Spiess' Part D claims by kind of drug, 2024
- Generic467 claims88%
- Brand-name65 claims12%
Dr. Spiess' 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: 4722024: 4485%
Drugs named by CMS: 8 in 2024, 9 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. Susannah E. Spiess scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Spiess for performance year 2024, reported as part of a group. Dr. Spiess accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Spiess as offering telehealth. CMS counts 105 procedures of colonoscopy by Dr. Spiess, more than 81% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Spiess' MIPS scores, performance year 2024
- 85of 100Final score
- 75.9of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Spiess ranks in Medicare procedure volume
- Colonoscopy
- 81st percentile105 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 58th percentile35 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Susannah E. Spiess graduated from Northwestern University Feinberg Medical School
Dr. Spiess graduated from Northwestern University Feinberg Medical School in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Susannah E. Spiess'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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Susannah E. Spiess
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. Susannah E. Spiess' NPI number?
Dr. Susannah E. Spiess' NPI number is 1427076082. It was assigned on July 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Susannah E. Spiess?
Dr. Susannah E. Spiess is a gastroenterologist in Evanston, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Susannah E. Spiess practice?
Dr. Spiess practices at 2650 Ridge Ave, Evanston, IL 60201. Dr. Spiess' primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dmand AI also links Dr. Spiess to 1 group practice or clinic.
What is Dr. Susannah E. Spiess' office phone number?
The practice phone on file for Dr. Spiess is (847) 570-2000.
What is Dr. Susannah E. Spiess' medical license number?
Dr. Spiess holds Illinois license 036084828.
Which hospitals is Dr. Susannah E. Spiess affiliated with?
Dr. Spiess practices at Evanston Hospital in Evanston, Illinois. Dr. Spiess is also affiliated with Swedish Hospital.
What medical group is Dr. Susannah E. Spiess part of?
Dr. Spiess is linked to Endeavor Health Medical Group.
Does Dr. Susannah E. Spiess accept Medicare?
Yes. CMS data shows Dr. Spiess billed Medicare for 549 services in 2024, and Dr. Spiess accepts Medicare assignment.
Does Dr. Susannah E. Spiess offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Spiess as offering telehealth services.
What is Dr. Susannah E. Spiess' MIPS score?
Dr. Spiess' MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Susannah E. Spiess see?
CMS counts 342 Medicare patients who saw Dr. Spiess in 2024, with an average age of 74.
What services does Dr. Susannah E. Spiess bill to Medicare?
In 2024, Dr. Spiess' most billed Medicare services were surgery: digestive system (45380), medicare service (G0500) and surgery: digestive system (45385).
Where did Dr. Susannah E. Spiess go to medical school?
Dr. Spiess graduated from Northwestern University Feinberg Medical School in 1990.
What drugs does Dr. Susannah E. Spiess prescribe most?
In 2024 Medicare Part D data, Dr. Spiess' most prescribed drugs by claims were Gavilyte-C, Peg 3350-Electrolyte and Ondansetron HCl.
How long has Dr. Susannah E. Spiess been practicing?
Dr. Spiess graduated from medical school in 1990, 36 years ago.
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