Dr. Marit Susan Tweet, MD
- Medicare services, 2024
- 314
- Medicare patients, 2024
- 309
- Part D claims, 2024
- 71
- Publications
- 4
- Hospital affiliations
- 1
- Practice address
- 701 N First St, Springfield, IL 62702
- Practice phone
- Call (217) 788-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tweet'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. Marit Susan Tweet is an emergency medicine physician in Springfield, Illinois
Dr. Tweet practices at Springfield Memorial Hospital in Springfield, Illinois, part of Memorial Health System.
Dr. Tweet's NPI, 1942651781, was assigned on June 22, 2016. Dr. Tweet holds Illinois license 036.148594.
- NPI
- 1942651781NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052605870
- NPI enumeration date
- June 22, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (217) 788-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marit Susan Tweet practices at Springfield Memorial Hospital in Springfield, Illinois
Dr. Tweet's primary practice is Springfield Memorial Hospital, at 701 N First St, Springfield, IL 62702 in Sangamon County. The practice phone is (217) 788-3000.
- Springfield Memorial Hospital701 N First St, Springfield, IL 62702 · Sangamon CountyPhone(217) 788-3000
Source: Dmand AI Affiliation Data
Dr. Marit Susan Tweet is affiliated with 1 site of care and 3 medical groups
Dr. Tweet's primary practice is Springfield Memorial Hospital in Springfield, Illinois, part of Memorial Health System. The medical group on file is Mid-America Emergency Physicians. Dmand AI also links Dr. Tweet to 2 more medical groups, 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. Marit Susan Tweet's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tweet practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Springfield Memorial Hospital | Available with a free account |
| +2 medical groups | 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 Memorial Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Marit Susan Tweet is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Tweet's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Tweet is licensed in Illinois.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
Emergency medicine physicians near Dr. Tweet
Counts of emergency medicine 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. Marit Susan Tweet billed Medicare for 314 services in 2024
CMS data shows 314 Medicare services from Dr. Tweet across 3 procedure codes in 2024, for 309 Medicare patients. Medicare paid $39,999 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Tweet's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3102024: 3141%
Dr. Tweet compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Tweet
- Illinois median
- Medicare services
- 314vs 27415% above
- Medicare patients
- 309vs 27313% above
- Part D claims
- 17vs 4562% below
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Tweet'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.
Need commercial claims for Dr. Tweet?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tweet and other emergency medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marit Susan Tweet treated 309 Medicare patients in 2024, average age 72
CMS counts 309 Medicare patients who saw Dr. Tweet in 2024. The largest group is 65 to 74, with 100 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 38% are also on Medicaid. Their average risk score is 2.10, 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. Tweet's median patient age at 64, with 56% women.
Dr. Tweet's Medicare patients by age, 2024
Dr. Tweet's Medicare patients by sex, 2024
- Women16654%
- Men14346%
Chronic conditions among Dr. Tweet's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Ischemic heart disease49%
- Diabetes40%
- Mood disorders39%
- Anxiety37%
- Chronic kidney disease35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tweet's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Marit Susan Tweet wrote 71 Medicare Part D claims in 2024
In 2024, Dr. Tweet wrote 71 Medicare Part D claims for 54 patients. 99% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $61 in total drug cost. In 2023, CMS named 33 claims across 1 drug.
Dr. Tweet's Part D claims by kind of drug, 2024
- Generic70 claims99%
- Brand-name and other1 claims1%
Dr. Tweet'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. Tweet's Part D claims, 2024
- Opioids38%27 of 71 claims
- Antibiotics28%20 of 71 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: 332024: 1748%
Drugs named by CMS: 1 in 2024, 1 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
How Dr. Marit Susan Tweet takes part in Medicare
Dr. Tweet accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Marit Susan Tweet has 4 publications on record
Dmand AI links 4 papers to Dr. Tweet, published from 2021 to 2022. The most frequent topics are Poison Control Centers and Sodium Nitrite. Dr. Tweet's most frequent co-authors are Sean David McCann, MD, Michael S. Wahl, MD and Steven E. Aks, DO.
Topics Dr. Tweet writes about most
- Poison Control Centers
- Sodium Nitrite
Dr. Tweet's most frequent co-authors
- Sean David McCann, MD2 shared papers
- Michael S. Wahl, MD2 shared papers
- Steven E. Aks, DO1 shared paper
Recent publications by Dr. Tweet
Clin Toxicol (Phila)
See who Dr. Tweet researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tweet works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Marit Susan Tweet'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Marit Susan Tweet
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. Marit Susan Tweet's NPI number?
Dr. Marit Susan Tweet's NPI number is 1942651781. It was assigned on June 22, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Marit Susan Tweet?
Dr. Marit Susan Tweet is an emergency medicine physician in Springfield, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Marit Susan Tweet practice?
Dr. Tweet practices at 701 N First St, Springfield, IL 62702. Dr. Tweet's primary practice is Springfield Memorial Hospital in Springfield, Illinois, part of Memorial Health System. Dmand AI also links Dr. Tweet to 2 medical groups.
What is Dr. Marit Susan Tweet's office phone number?
The practice phone on file for Dr. Tweet is (217) 788-3000.
What is Dr. Marit Susan Tweet's medical license number?
Dr. Tweet holds Illinois license 036.148594.
Which hospitals is Dr. Marit Susan Tweet affiliated with?
Dr. Tweet practices at Springfield Memorial Hospital in Springfield, Illinois.
What medical group is Dr. Marit Susan Tweet part of?
Dr. Tweet is linked to Mid-America Emergency Physicians. Dmand AI links Dr. Tweet to 2 more medical groups.
Does Dr. Marit Susan Tweet accept Medicare?
Yes. CMS data shows Dr. Tweet billed Medicare for 314 services in 2024, and Dr. Tweet accepts Medicare assignment.
How many Medicare patients does Dr. Marit Susan Tweet see?
CMS counts 309 Medicare patients who saw Dr. Tweet in 2024, with an average age of 72.
What services does Dr. Marit Susan Tweet bill to Medicare?
In 2024, Dr. Tweet's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Show 4 more questionsShow fewer questions
What drugs does Dr. Marit Susan Tweet prescribe most?
In 2024 Medicare Part D data, Dr. Tweet's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
How long has Dr. Marit Susan Tweet been practicing?
Dr. Tweet's NPI was assigned in 2016.
Does Dr. Marit Susan Tweet do research?
Dmand AI links 4 publications to Dr. Tweet, published from 2021 to 2022.
Who does Dr. Marit Susan Tweet publish with?
Dr. Tweet's most frequent co-authors are Sean David McCann, MD (2 shared papers), Michael S. Wahl, MD (2 shared papers) and Steven E. Aks, DO (1 shared paper).
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