Dr. Dinee Collings Simpson, MD
- Medicare services, 2023
- 78
- Medicare patients, 2024
- 19
- Part D claims, 2018
- 11
- Publications
- 14
- MIPS score, 2024
- 95
- 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. Simpson'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. Dinee Collings Simpson is a transplant surgery physician in Chicago, Illinois
Dr. Simpson practices at Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare.
Dr. Simpson's NPI, 1770606634, was assigned on April 7, 2007. Dr. Simpson graduated from New York University School of Medicine in 2006. Dr. Simpson holds Illinois license 036143731.
- NPI
- 1770606634NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688988157
- NPI enumeration date
- April 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 926-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dinee Collings Simpson practices at Northwestern Memorial Hospital in Chicago, Illinois
Dr. Simpson'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. Dinee Collings Simpson is affiliated with 2 sites of care and 1 medical group
Dr. Simpson'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. Dmand AI also links Dr. Simpson 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. Dinee Collings Simpson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simpson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Memorial Hospital | Available with a free account |
| +1 more affiliated site | 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. Dinee Collings Simpson is one of 47 transplant surgery physicians in Illinois
Transplant surgery is Dr. Simpson's primary specialty in the NPI Registry, under taxonomy code 204F00000X. Dmand AI has Dr. Simpson's licenses on file in 2 states: Illinois and Massachusetts.
Specialties and state licenses
- Transplant surgery, IllinoisPrimary
- Surgery, Massachusetts
Transplant surgery physicians near Dr. Simpson
Counts of transplant surgery physicians 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. Dinee Collings Simpson billed Medicare for 78 services in 2023
CMS data shows 78 Medicare services from Dr. Simpson across 3 procedure codes in 2023, for 19 Medicare patients. Medicare paid $28,607 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Simpson's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1012023: 5546%
- Surgery
- 2022: 02023: 23
Dr. Simpson compared with the Illinois median for transplant surgery physicians, 2023
- Dr. Simpson
- Illinois median
- Medicare services
- 78vs 13944% below
- Medicare patients
- 19vs 7474% below
- Part D claims
- 11vs 7585% below
Medians across 42 transplant surgery physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Simpson's most billed Medicare procedure codes, 2023
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. Simpson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Simpson and other transplant surgery physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dinee Collings Simpson treated 19 Medicare patients in 2024, average age 57
CMS counts 19 Medicare patients who saw Dr. Simpson in 2024. 75% of them have chronic kidney disease, and 75% have high blood pressure. Their average risk score is 10.01, 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. Simpson's median patient age at 62, with 34% women.
Chronic conditions among Dr. Simpson's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease63%
- Diabetes58%
Share of Medicare patients with each condition. A patient can have several.
Dr. Simpson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women34%
- Men66%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dinee Collings Simpson wrote 11 Medicare Part D claims in 2018
In 2018, Dr. Simpson wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $18,259 in total drug cost.
Dr. Simpson's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Dinee Collings Simpson 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. Simpson for performance year 2024, reported through an alternative payment model (APM). Dr. Simpson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Simpson'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. Dinee Collings Simpson has 14 publications on record
Dmand AI links 14 papers to Dr. Simpson, published from 2011 to 2025. 2021 was the busiest year, with 3. The most frequent topics are Liver Transplantation, Healthcare Disparities and Liver Cirrhosis. Dr. Simpson has published most often in Am J Transplant. Dr. Simpson's most frequent co-authors are Daniela P. Ladner, MD, Joy Obayemi and Juan Carlos Caicedo, MD.
Dr. Simpson's papers by year, 2011 to 2025
Topics Dr. Simpson writes about most
- Liver Transplantation
- Healthcare Disparities
- Liver Cirrhosis
- End Stage Liver Disease
- Health Status Disparities
Dr. Simpson's most frequent co-authors
- Daniela P. Ladner, MD3 shared papers
- Joy Obayemi3 shared papers
- Juan Carlos Caicedo, MD2 shared papers
Recent publications by Dr. Simpson
Transplantation
Hepatol Commun
Am J Transplant
See who Dr. Simpson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Simpson works with, so you can find a warm path to the right transplant surgery physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Dinee Collings Simpson received $6,325 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Simpson from 1 drug or device company in 2019. Consulting fees make up the largest share, 100% of the total. Veloxis Pharmaceuticals, Inc. paid the most, $6,325.
Companies that paid Dr. Simpson the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Dinee Collings Simpson graduated from New York University School of Medicine
Dr. Simpson graduated from New York University School of Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Dinee Collings Simpson'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) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Dinee Collings Simpson
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. Dinee Collings Simpson's NPI number?
Dr. Dinee Collings Simpson's NPI number is 1770606634. It was assigned on April 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Dinee Collings Simpson?
Dr. Dinee Collings Simpson is a transplant surgery physician in Chicago, Illinois. The primary specialty in the NPI Registry is Transplant Surgery Physician (taxonomy code 204F00000X).
Where does Dr. Dinee Collings Simpson practice?
Dr. Simpson practices at 251 E Huron St, Chicago, IL 60611. Dr. Simpson's primary practice is Northwestern Memorial Hospital in Chicago, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Simpson to 1 group practice or clinic.
What is Dr. Dinee Collings Simpson's office phone number?
The practice phone on file for Dr. Simpson is (312) 926-2000.
What is Dr. Dinee Collings Simpson's medical license number?
Dr. Simpson holds Illinois license 036143731, one of the licenses on file in 2 states.
Which states has Dr. Dinee Collings Simpson been licensed in?
Dmand AI has state licenses on file for Dr. Simpson in Illinois and Massachusetts.
Which hospitals is Dr. Dinee Collings Simpson affiliated with?
Dr. Simpson practices at Northwestern Memorial Hospital in Chicago, Illinois.
What medical group is Dr. Dinee Collings Simpson part of?
Dr. Simpson is linked to Northwestern Medical Faculty Foundation.
Does Dr. Dinee Collings Simpson accept Medicare?
Yes. CMS data shows Dr. Simpson billed Medicare for 78 services in 2023, and Dr. Simpson accepts Medicare assignment.
What is Dr. Dinee Collings Simpson's MIPS score?
Dr. Simpson's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Dinee Collings Simpson see?
CMS counts 19 Medicare patients who saw Dr. Simpson in 2024, with an average age of 57.
What services does Dr. Dinee Collings Simpson bill to Medicare?
In 2023, Dr. Simpson's most billed Medicare services were hospital inpatient care (99232), surgery: urinary system (50360) and surgery: urinary system (50323).
Where did Dr. Dinee Collings Simpson go to medical school?
Dr. Simpson graduated from New York University School of Medicine in 2006.
What drugs does Dr. Dinee Collings Simpson prescribe most?
In 2018 Medicare Part D data, Dr. Simpson's most prescribed drugs by claims were Valganciclovir HCl.
Has Dr. Dinee Collings Simpson received payments from drug or device companies?
CMS Open Payments shows $6,325 in general payments to Dr. Simpson from 1 company from 2019 to 2019. The largest total came from Veloxis Pharmaceuticals, Inc.
How long has Dr. Dinee Collings Simpson been practicing?
Dr. Simpson graduated from medical school in 2006, 20 years ago.
Does Dr. Dinee Collings Simpson do research?
Dmand AI links 14 publications to Dr. Simpson, published from 2011 to 2025.
Who does Dr. Dinee Collings Simpson publish with?
Dr. Simpson's most frequent co-authors are Daniela P. Ladner, MD (3 shared papers), Joy Obayemi (3 shared papers) and Juan Carlos Caicedo, MD (2 shared papers).
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