Dr. Sally A.i. Knooihuizen, MD
- Medicare services, 2024
- 14,485
- Medicare patients, 2024
- 344
- Part D claims, 2024
- 433
- MIPS score, 2024
- 100
- Hospital affiliations
- 4
- Practice address
- 4545 R Street, Suite 101, Lincoln, NE 68503
- Practice phone
- Call (402) 465-4545
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lincoln Endoscopy Center
Surgery Center - Medicare-Certified · Lincoln, Nebraska
Find Dr. Knooihuizen'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. Sally A.i. Knooihuizen is a gastroenterologist in Lincoln, Nebraska
Dr. Knooihuizen practices at Lincoln Endoscopy Center in Lincoln, Nebraska.
Dr. Knooihuizen's NPI, 1164943171, was assigned on June 29, 2017. Dr. Knooihuizen graduated from University of Nebraska College of Medicine in 2017. Dr. Knooihuizen holds Nebraska license 35811.
- NPI
- 1164943171NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628341831
- NPI enumeration date
- June 29, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (402) 465-4545
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sally A.i. Knooihuizen practices at Lincoln Endoscopy Center in Lincoln, Nebraska
Dr. Knooihuizen's primary practice is Lincoln Endoscopy Center, at 4545 R Street, Suite 101, Lincoln, NE 68503. The practice phone is (402) 465-4545.
- Lincoln Endoscopy Center4545 R Street, Suite 101, Lincoln, NE 68503Phone(402) 465-4545
Source: Dmand AI Affiliation Data
Dr. Sally A.i. Knooihuizen is affiliated with 6 sites of care and 1 medical group
Dr. Knooihuizen's primary practice is Lincoln Endoscopy Center in Lincoln, Nebraska. Dr. Knooihuizen is also affiliated with Bryan Medical Center. The medical group on file is Gastroenterology Specialties, P.C. Dmand AI also links Dr. Knooihuizen to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sally A.i. Knooihuizen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Knooihuizen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lincoln Endoscopy Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sally A.i. Knooihuizen is one of 78 gastroenterologists in Nebraska
Gastroenterology is Dr. Knooihuizen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Knooihuizen is licensed in Nebraska.
Specialties and state licenses
- Gastroenterology, NebraskaPrimary
Gastroenterologists near Dr. Knooihuizen
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. Sally A.i. Knooihuizen billed Medicare for 14,485 services in 2024
CMS data shows 14,485 Medicare services from Dr. Knooihuizen across 16 procedure codes in 2024, for 344 Medicare patients. Medicare paid $305,411 for them.
Dr. Knooihuizen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 8,9102024: 13,94056%
- Surgery
- 2023: 712024: 236232%
- Office and hospital visits
- 2023: 612024: 168175%
- Tests and treatments
- 2023: 802024: 10329%
- Other services
- 2023: 02024: 38
Where Dr. Knooihuizen's Medicare services took place, 2024
- In an office14,10397%
- In a facility3823%
Dr. Knooihuizen compared with the Nebraska median for gastroenterologists, 2024
- Dr. Knooihuizen
- Nebraska median
- Medicare services
- 14,485vs 90216.1 times
- Medicare patients
- 344vs 51233% below
- Part D claims
- 327vs 43825% below
Medians across 80 gastroenterologists in Nebraska with Dmand AI profiles that report each measure.
Dr. Knooihuizen'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. Knooihuizen and other gastroenterologists in Nebraska.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sally A.i. Knooihuizen treated 344 Medicare patients in 2024, average age 73
CMS counts 344 Medicare patients who saw Dr. Knooihuizen in 2024. The largest group is 65 to 74, with 188 patients. 73% of them have high blood pressure, and 71% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Knooihuizen's median patient age at 52, with 66% women.
Dr. Knooihuizen's Medicare patients by age, 2024
Dr. Knooihuizen's Medicare patients by sex, 2024
- Women20660%
- Men13840%
Chronic conditions among Dr. Knooihuizen's Medicare patients, 2024
- High blood pressure73%
- High cholesterol71%
- Arthritis50%
- Anxiety32%
- Mood disorders32%
- Chronic kidney disease30%
- Depression29%
- Diabetes27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Knooihuizen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sally A.i. Knooihuizen wrote 433 Medicare Part D claims in 2024
In 2024, Dr. Knooihuizen wrote 433 Medicare Part D claims for 228 patients. 76% of them were for generic drugs. CMS names the drug for 327 of them, across 7 drugs with 11 or more claims each, at $27,756 in total drug cost. In 2023, CMS named 51 claims across 3 drugs.
Dr. Knooihuizen's Part D claims by kind of drug, 2024
- Generic330 claims76%
- Brand-name103 claims24%
Dr. Knooihuizen'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. Knooihuizen's Part D claims, 2024
- Antibiotics3%15 of 433 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: 512024: 327541%
Drugs named by CMS: 7 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. Sally A.i. Knooihuizen scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Knooihuizen for performance year 2024, reported as part of a group. Dr. Knooihuizen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 145 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Knooihuizen, more than 84% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Knooihuizen's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Knooihuizen ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 84th percentile145 procedures
- Colonoscopy
- 81st percentile105 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. Sally A.i. Knooihuizen received $1,966 in industry payments from 2023 to 2025
CMS Open Payments shows 79 general payments to Dr. Knooihuizen from 21 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Aimmune Therapeutics, Inc. paid the most, $535.
General payments to Dr. Knooihuizen by program year, 2023 to 2025
Companies that paid Dr. Knooihuizen the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sally A.i. Knooihuizen graduated from University of Nebraska College of Medicine
Dr. Knooihuizen graduated from University of Nebraska College of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Sally A.i. Knooihuizen'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) |
| 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. Sally A.i. Knooihuizen
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. Sally A.i. Knooihuizen's NPI number?
Dr. Sally A.i. Knooihuizen's NPI number is 1164943171. It was assigned on June 29, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Sally A.i. Knooihuizen?
Dr. Sally A.i. Knooihuizen is a gastroenterologist in Lincoln, Nebraska. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Sally A.i. Knooihuizen practice?
Dr. Knooihuizen practices at 4545 R Street, Suite 101, Lincoln, NE 68503. Dr. Knooihuizen's primary practice is Lincoln Endoscopy Center in Lincoln, Nebraska. Dmand AI also links Dr. Knooihuizen to 3 hospitals and 1 group practice or clinic.
What is Dr. Sally A.i. Knooihuizen's office phone number?
The practice phone on file for Dr. Knooihuizen is (402) 465-4545.
What is Dr. Sally A.i. Knooihuizen's medical license number?
Dr. Knooihuizen holds Nebraska license 35811.
Which hospitals is Dr. Sally A.i. Knooihuizen affiliated with?
Dr. Knooihuizen is affiliated with Bryan Medical Center. Dmand AI links Dr. Knooihuizen to 3 more hospitals.
What medical group is Dr. Sally A.i. Knooihuizen part of?
Dr. Knooihuizen is linked to Gastroenterology Specialties, P.C.
Does Dr. Sally A.i. Knooihuizen accept Medicare?
Yes. CMS data shows Dr. Knooihuizen billed Medicare for 14,485 services in 2024, and Dr. Knooihuizen accepts Medicare assignment.
What is Dr. Sally A.i. Knooihuizen's MIPS score?
Dr. Knooihuizen's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Sally A.i. Knooihuizen see?
CMS counts 344 Medicare patients who saw Dr. Knooihuizen in 2024, with an average age of 73.
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What services does Dr. Sally A.i. Knooihuizen bill to Medicare?
In 2024, Dr. Knooihuizen's most billed Medicare services were injected or infused drug (J3380), injected or infused drug (J1745) and surgery: digestive system (45385).
Where did Dr. Sally A.i. Knooihuizen go to medical school?
Dr. Knooihuizen graduated from University of Nebraska College of Medicine in 2017.
What drugs does Dr. Sally A.i. Knooihuizen prescribe most?
In 2024 Medicare Part D data, Dr. Knooihuizen's most prescribed drugs by claims were Sod Sulf-Potass Sulf-Mag Sulf, Omeprazole and Pantoprazole Sodium.
Has Dr. Sally A.i. Knooihuizen received payments from drug or device companies?
CMS Open Payments shows $1,966 in general payments to Dr. Knooihuizen from 21 companies from 2023 to 2025. The largest total came from Aimmune Therapeutics, Inc.
How long has Dr. Sally A.i. Knooihuizen been practicing?
Dr. Knooihuizen graduated from medical school in 2017, 9 years ago.
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