Dr. Melissa Leigh Larson, MD
- Medicare services, 2024
- 745
- Medicare patients, 2024
- 339
- Part D claims, 2024
- 1,192
- Publications
- 12
- Clinical trials
- 2
- Practice address
- 1653 West Congress Parkway, Chicago, IL 60612
- Practice phone
- Call (312) 942-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Larson'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. Melissa Leigh Larson is a hematology (internal medicine) physician in Chicago, Illinois
Dr. Larson practices at Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.
Dr. Larson's NPI, 1912967688, was assigned on March 25, 2006. Dr. Larson graduated from Rush Medical College in 2000. Dr. Larson holds Illinois license 036108941.
- NPI
- 1912967688NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133132293
- NPI enumeration date
- March 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 942-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Melissa Leigh Larson practices at Rush University Medical Center in Chicago, Illinois
Dr. Larson's primary practice is Rush University Medical Center, at 1653 West Congress Parkway, Chicago, IL 60612 in Cook County. The practice phone is (312) 942-5000.
- Rush University Medical Center1653 West Congress Parkway, Chicago, IL 60612 · Cook CountyPhone(312) 942-5000
Source: Dmand AI Affiliation Data
Dr. Melissa Leigh Larson is affiliated with 4 sites of care and 1 medical group
Dr. Larson's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Dr. Larson is also affiliated with Rush Oak Park Hospital. The medical group on file is Rush University Internists. Dmand AI also links Dr. Larson to 1 more group practice or clinic and 1 home health agency, 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. Melissa Leigh Larson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larson practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rush University Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Rush System for Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Melissa Leigh Larson is one of 34 hematology (internal medicine) physicians in Illinois
Internal medicine is Dr. Larson's primary specialty in the NPI Registry, under taxonomy code 207RH0000X. The record also lists hematology. Dr. Larson is board certified in hematology by the American Board of Internal Medicine. Dr. Larson is licensed in Illinois.
Specialties and state licenses
- Hematology (internal medicine), IllinoisPrimary
Clinical focus
Dmand AI lists chronic anemia, chronic leukemia, deep vein thrombosis (DVT), lung cancer, lymphoma, multiple myeloma and purpura and thrombocytopenia among the conditions Dr. Larson treats.
Hematology (internal medicine) physicians near Dr. Larson
Counts of hematology (internal 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. Melissa Leigh Larson billed Medicare for 745 services in 2024
CMS data shows 745 Medicare services from Dr. Larson across 8 procedure codes in 2024, for 339 Medicare patients. Medicare paid $69,054 for them.
Dr. Larson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7842024: 67015%
- Other services
- 2023: 02024: 75
Where Dr. Larson's Medicare services took place, 2024
- In an office17423%
- In a facility57177%
Dr. Larson compared with the Illinois median for hematology (internal medicine) physicians, 2024
- Dr. Larson
- Illinois median
- Medicare services
- 745vs 66712% above
- Medicare patients
- 339vs 24240% above
- Part D claims
- 972vs 65249% above
Medians across 31 hematology (internal medicine) physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Larson'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. Larson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Larson and other hematology (internal medicine) physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Melissa Leigh Larson treated 339 Medicare patients in 2024, average age 72
CMS counts 339 Medicare patients who saw Dr. Larson in 2024. The largest group is 65 to 74, with 153 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.58, 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. Larson's median patient age at 70, with 58% women.
Dr. Larson's Medicare patients by age, 2024
Dr. Larson's Medicare patients by sex, 2024
- Women18655%
- Men15345%
Chronic conditions among Dr. Larson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Chronic kidney disease41%
- Ischemic heart disease41%
- Diabetes35%
- Heart failure32%
- Atrial fibrillation26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Larson'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
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Melissa Leigh Larson wrote 1,192 Medicare Part D claims in 2024
In 2024, Dr. Larson wrote 1,192 Medicare Part D claims for 201 patients. 59% of them were for generic drugs. CMS names the drug for 972 of them, across 30 drugs with 11 or more claims each, at $6,082,664 in total drug cost. In 2023, CMS named 1,038 claims across 30 drugs.
Dr. Larson's Part D claims by kind of drug, 2024
- Generic704 claims59%
- Brand-name488 claims41%
Dr. Larson'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. Larson's Part D claims, 2024
- Antibiotics5%63 of 1,192 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: 1,0382024: 9726%
Drugs named by CMS: 30 in 2024, 30 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. Melissa Leigh Larson takes part in Medicare
Dr. Larson 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. Melissa Leigh Larson has 12 publications on record
Dmand AI links 12 papers to Dr. Larson, published from 2011 to 2021. 2012 was the busiest year, with 2. The most frequent topics are Leukemia, Myeloid, Acute, Antineoplastic Combined Chemotherapy Protocols and Antibodies, Monoclonal, Murine-Derived. Dr. Larson has published most often in Blood Adv. Dr. Larson's most frequent co-authors are Stephanie Gregory, MD, Ivy Elizabeth Abraham and Jessica Kaplan Altman, MD.
Dr. Larson's papers by year, 2011 to 2021
Topics Dr. Larson writes about most
- Leukemia, Myeloid, Acute
- Antineoplastic Combined Chemotherapy Protocols
- Antibodies, Monoclonal, Murine-Derived
- Antineoplastic Agents
- Cyclophosphamide
- Doxorubicin
- Leukemia, Lymphocytic, Chronic, B-Cell
- Lymphoma, Large B-Cell, Diffuse
Dr. Larson's most frequent co-authors
- Stephanie Gregory, MD4 shared papers
- Ivy Elizabeth Abraham2 shared papers
- Jessica Kaplan Altman, MD2 shared papers
Recent publications by Dr. Larson
Med Hypotheses
See who Dr. Larson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Larson works with, so you can find a warm path to the right hematology (internal medicine) physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Melissa Leigh Larson has worked on 2 clinical trials
Dmand AI links Dr. Larson to 2 clinical trials, 2 of them phase 3 studies. Conditions studied include Leukemia, Myeloid, Acute and Leukemia, Myeloid.
Conditions in Dr. Larson's trials
- Leukemia, Myeloid, Acute
- Leukemia, Myeloid
Investigators on the most trials with Dr. Larson
- Dale Lee Bixby, MD1 shared trial
- Eric J. Feldman, MD1 shared trial
- Matthew Charles Foster, MD1 shared trial
Recent clinical trials with Dr. Larson
Study of Crenolanib vs Midostaurin Following Induction Chemotherapy and Consolidation Therapy in Newly Diagnosed FLT3 Mutated AML (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Melissa Leigh Larson received $4,492 in industry payments from 2020 to 2025
CMS Open Payments shows 23 general payments to Dr. Larson from 3 drug and device companies from 2020 to 2025. Consulting fees make up the largest share, 86% of the total. Abbvie Inc. paid the most, $4,301.
General payments to Dr. Larson by program year, 2020 to 2025
General payments to Dr. Larson by kind, 2020 to 2025
- Consulting fees$3,85086%
- Food and beverage$50011%
- Education$1002%
- Travel and lodging$421%
Companies that paid Dr. Larson the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Melissa Leigh Larson has 1 award and honors on record
Dmand AI lists 1 award for Dr. Larson, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Larson
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Melissa Leigh Larson graduated from Rush Medical College
Dr. Larson graduated from Rush Medical College in 2000. Dr. Larson is a member of ASCO.
- Medical school
- Board certified in hematology
Source: Dmand AI Professional Profile Data
Dr. Melissa Leigh Larson accepts plans from 17 insurance carriers
Dr. Larson is in network with 17 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Cigna
- HCSC
- United Healthcare
- Humana
- Aspirus Health Plan
- +9 more carriersWith a free account
Plan types Dr. Larson accepts, by number of carriers
- PPO12
- Medicare10
- HMO9
- POS7
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Melissa Leigh Larson'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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Melissa Leigh Larson
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. Melissa Leigh Larson's NPI number?
Dr. Melissa Leigh Larson's NPI number is 1912967688. It was assigned on March 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Melissa Leigh Larson?
Dr. Melissa Leigh Larson is a hematology (internal medicine) physician in Chicago, Illinois. The primary specialty in the NPI Registry is Hematology (Internal Medicine) Physician (taxonomy code 207RH0000X).
Where does Dr. Melissa Leigh Larson practice?
Dr. Larson practices at 1653 West Congress Parkway, Chicago, IL 60612. Dr. Larson's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Dmand AI also links Dr. Larson to 1 group practice or clinic and 1 home health agency.
What is Dr. Melissa Leigh Larson's office phone number?
The practice phone on file for Dr. Larson is (312) 942-5000.
What is Dr. Melissa Leigh Larson's medical license number?
Dr. Larson holds Illinois license 036108941.
Which hospitals is Dr. Melissa Leigh Larson affiliated with?
Dr. Larson practices at Rush University Medical Center in Chicago, Illinois. Dr. Larson is also affiliated with Rush Oak Park Hospital.
What medical group is Dr. Melissa Leigh Larson part of?
Dr. Larson is linked to Rush University Internists.
Does Dr. Melissa Leigh Larson accept Medicare?
Yes. CMS data shows Dr. Larson billed Medicare for 745 services in 2024, and Dr. Larson accepts Medicare assignment.
How many Medicare patients does Dr. Melissa Leigh Larson see?
CMS counts 339 Medicare patients who saw Dr. Larson in 2024, with an average age of 72.
Is Dr. Melissa Leigh Larson board certified?
Yes. Dr. Larson is board certified in hematology by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Melissa Leigh Larson bill to Medicare?
In 2024, Dr. Larson's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99233) and office visit, established patient (99214).
Where did Dr. Melissa Leigh Larson go to medical school?
Dr. Larson graduated from Rush Medical College in 2000.
What drugs does Dr. Melissa Leigh Larson prescribe most?
In 2024 Medicare Part D data, Dr. Larson's most prescribed drugs by claims were Revlimid, Hydroxyurea and Acyclovir.
Has Dr. Melissa Leigh Larson received payments from drug or device companies?
CMS Open Payments shows $4,492 in general payments to Dr. Larson from 3 companies from 2020 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Melissa Leigh Larson been practicing?
Dr. Larson graduated from medical school in 2000, 26 years ago.
Does Dr. Melissa Leigh Larson do research?
Dmand AI links 12 publications to Dr. Larson, published from 2011 to 2021. Dr. Larson has worked on 2 clinical trials.
Who does Dr. Melissa Leigh Larson publish with?
Dr. Larson's most frequent co-authors are Stephanie Gregory, MD (4 shared papers), Ivy Elizabeth Abraham (2 shared papers) and Jessica Kaplan Altman, MD (2 shared papers).
What insurance does Dr. Melissa Leigh Larson accept?
Dr. Larson is in network with 17 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
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