Dr. Michael H. Tomasson, MD

  • Iowa City, IA
  • Hematology (internal medicine) physician
NPI1841216157PAC ID2163556713
Medicare services, 2024
35
Medicare patients, 2024
24
Part D claims, 2024
69
Publications
50
Clinical trials
10
Practice address
200 Hawkins Drive, Iowa City, IA 52242
Practice phone
Call (319) 356-1616
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

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Dr. Michael H. Tomasson is a hematology (internal medicine) physician in Iowa City, Iowa

Dr. Tomasson practices at University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa.

Dr. Tomasson's NPI, 1841216157, was assigned on July 14, 2006. Dr. Tomasson graduated from Stanford University School of Medicine in 1992. Dr. Tomasson holds Iowa license MD-43803.

NPI and contact details
Medicare PAC ID
2163556713
NPI enumeration date
July 14, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(319) 356-1616
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
60
Medical school graduation
1992

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Michael H. Tomasson practices at University of Iowa Health Care Medical Center in Iowa City, Iowa

Dr. Tomasson's primary practice is University of Iowa Health Care Medical Center, at 200 Hawkins Drive, Iowa City, IA 52242 in Johnson County. The practice phone is (319) 356-1616.

Source: Dmand AI Affiliation Data

Dr. Michael H. Tomasson is affiliated with 1 site of care and 2 medical groups

Dr. Tomasson's primary practice is University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Tomasson to 1 more medical group, named with a free account.

See all 3 affiliations for Dr. Tomasson

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Michael H. Tomasson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tomasson practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
University of Iowa Health Care Medical CenterAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Michael H. Tomasson is one of 12 hematology (internal medicine) physicians in Iowa

Internal medicine is Dr. Tomasson's primary specialty in the NPI Registry, under taxonomy code 207RH0000X. The record also lists hematology. Dr. Tomasson is licensed in Iowa.

Specialties and state licenses

  • Hematology (internal medicine), IowaPrimaryLicense MD-43803 · taxonomy 207RH0000X

Hematology (internal medicine) physicians near Dr. Tomasson

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. Michael H. Tomasson billed Medicare for 35 services in 2024

CMS data shows 35 Medicare services from Dr. Tomasson across 1 procedure code in 2024, all of them office visits, for 24 Medicare patients. Medicare paid $2,011 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202435
Medicare patients24
Paid by Medicare$2,011
Procedure codes1

Dr. Tomasson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1502024: 3577%

Dr. Tomasson compared with the Iowa median for hematology (internal medicine) physicians, 2024

  • Dr. Tomasson
  • Iowa median
Medicare services
35vs 32989% below
Part D claims
28vs 19586% below

Medians across 12 hematology (internal medicine) physicians in Iowa with Dmand AI profiles that report each measure.

Dr. Tomasson'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.

See all procedures by Dr. Tomasson

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Michael H. Tomasson treated 24 Medicare patients in 2024, average age 79

CMS counts 24 Medicare patients who saw Dr. Tomasson in 2024. The largest group is 75 to 84, with 11 patients. 75% of them have high blood pressure, and 58% have high cholesterol. Their average risk score is 2.85, 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. Tomasson's median patient age at 78, with 50% women.

Medicare patients, 202424
Average age79
Average risk score2.85

Dr. Tomasson's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Tomasson's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol58%

Share of Medicare patients with each condition. A patient can have several.

Dr. Tomasson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 78

Patient panel by sex, all payers

  • Women50%
  • Men50%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Michael H. Tomasson wrote 69 Medicare Part D claims in 2024

In 2024, Dr. Tomasson wrote 69 Medicare Part D claims. 84% of them were for generic drugs. CMS names the drug for 28 of them, across 1 drug with 11 or more claims each, at $369 in total drug cost. In 2023, CMS named 77 claims across 3 drugs.

Part D claims, 202469
Drugs named by CMS1
Total drug cost$369

Dr. Tomasson's Part D claims by kind of drug, 2024

  • Generic58 claims84%
  • Brand-name11 claims16%

Dr. Tomasson'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 772024: 2864%

Drugs named by CMS: 1 in 2024, 3 in 2023.

See all prescribing by Dr. Tomasson

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. Michael H. Tomasson scored 80 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Tomasson for performance year 2024, reported as part of a group. Dr. Tomasson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Tomasson's MIPS scores, performance year 2024

  • 80of 100Final score
  • 75.7of 100Quality
  • 78of 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. Michael H. Tomasson has 50 publications on record

Dmand AI links 50 papers to Dr. Tomasson, published from 2010 to 2024. 2015 was the busiest year, with 6. The most frequent topics are Multiple Myeloma, Leukemia, Myeloid, Acute and Disease Progression. Dr. Tomasson has published most often in N Engl J Med. Dr. Tomasson's most frequent co-authors are John F. Dipersio, MD, Timothy J. Ley, MD and Daniel C. Link, MD.

Papers50
Years published2010 to 2024

Dr. Tomasson's papers by year, 2014 to 2024

Topics Dr. Tomasson writes about most

  • Multiple Myeloma
  • Leukemia, Myeloid, Acute
  • Disease Progression
  • B-Lymphocytes
  • Cell Proliferation
  • Cell Transformation, Neoplastic
  • Mice, Inbred C57BL
  • Clonal Evolution

Dr. Tomasson's most frequent co-authors

Recent publications by Dr. Tomasson

See all 50 publications and co-authors

See who Dr. Tomasson researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tomasson works with, so you can find a warm path to the right hematology (internal medicine) physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Michael H. Tomasson has worked on 10 clinical trials

Dmand AI links Dr. Tomasson to 10 clinical trials, 4 of them phase 2 studies. 5 are still active or recruiting. Conditions studied include Leukemia, Myeloid, Acute, Leukemia, Myeloid and Multiple Myeloma. Washington University School of Medicine sponsors the most, 8.

Clinical trials with Dr. Tomasson by phase

  1. 2Phase 1: 2 trials
  2. 2Phase 1/2: 2 trials
  3. 4Phase 2: 4 trials
  4. NonePhase 3: no trials
  5. NonePhase 4: no trials

Conditions in Dr. Tomasson's trials

  • Leukemia, Myeloid, Acute
  • Leukemia, Myeloid
  • Multiple Myeloma
  • Blood Protein Disorders
  • Bronchiolitis Obliterans Syndrome

Investigators on the most trials with Dr. Tomasson

Recent clinical trials with Dr. Tomasson

See all 10 clinical trials and co-investigators

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Michael H. Tomasson received $51,057 in industry payments from 2017 to 2025

CMS Open Payments shows 7 general payments to Dr. Tomasson from 3 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 100% of the total. Janssen Research & Development, LLC paid the most, $51,005. It also lists 31 research payments totaling $23,590 from 2021 to 2024.

General payments to Dr. Tomasson by program year, 2017 to 2025

General payments to Dr. Tomasson by kind, 2017 to 2025

$51.1Kin total
  • Consulting fees$51,005100%
  • Food and beverage$520%

Companies that paid Dr. Tomasson the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Tomasson

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Michael H. Tomasson graduated from Stanford University School of Medicine

Dr. Tomasson graduated from Stanford University School of Medicine in 1992.

  1. Medical schoolStanford University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Michael H. Tomasson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Michael H. Tomasson

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. Michael H. Tomasson's NPI number?

Dr. Michael H. Tomasson's NPI number is 1841216157. It was assigned on July 14, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Michael H. Tomasson?

Dr. Michael H. Tomasson is a hematology (internal medicine) physician in Iowa City, Iowa. The primary specialty in the NPI Registry is Hematology (Internal Medicine) Physician (taxonomy code 207RH0000X).

Where does Dr. Michael H. Tomasson practice?

Dr. Tomasson practices at 200 Hawkins Drive, Iowa City, IA 52242. Dr. Tomasson's primary practice is University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa. Dmand AI also links Dr. Tomasson to 1 medical group.

What is Dr. Michael H. Tomasson's office phone number?

The practice phone on file for Dr. Tomasson is (319) 356-1616.

What is Dr. Michael H. Tomasson's medical license number?

Dr. Tomasson holds Iowa license MD-43803.

Which hospitals is Dr. Michael H. Tomasson affiliated with?

Dr. Tomasson practices at University of Iowa Health Care Medical Center in Iowa City, Iowa.

What medical group is Dr. Michael H. Tomasson part of?

Dr. Tomasson is linked to WashU Medicine Psychiatry. Dmand AI links Dr. Tomasson to 1 more medical group.

Does Dr. Michael H. Tomasson accept Medicare?

Yes. CMS data shows Dr. Tomasson billed Medicare for 35 services in 2024, and Dr. Tomasson accepts Medicare assignment.

What is Dr. Michael H. Tomasson's MIPS score?

Dr. Tomasson's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.

How many Medicare patients does Dr. Michael H. Tomasson see?

CMS counts 24 Medicare patients who saw Dr. Tomasson in 2024, with an average age of 79.

Show 7 more questionsShow fewer questions

What services does Dr. Michael H. Tomasson bill to Medicare?

In 2024, Dr. Tomasson's most billed Medicare services were office visit, established patient (99214).

Where did Dr. Michael H. Tomasson go to medical school?

Dr. Tomasson graduated from Stanford University School of Medicine in 1992.

What drugs does Dr. Michael H. Tomasson prescribe most?

In 2024 Medicare Part D data, Dr. Tomasson's most prescribed drugs by claims were Acyclovir.

Has Dr. Michael H. Tomasson received payments from drug or device companies?

CMS Open Payments shows $51,057 in general payments to Dr. Tomasson from 3 companies from 2017 to 2025. The largest total came from Janssen Research & Development, LLC.

How long has Dr. Michael H. Tomasson been practicing?

Dr. Tomasson graduated from medical school in 1992, 34 years ago.

Does Dr. Michael H. Tomasson do research?

Dmand AI links 50 publications to Dr. Tomasson, published from 2010 to 2024. Dr. Tomasson has worked on 10 clinical trials.

Who does Dr. Michael H. Tomasson publish with?

Dr. Tomasson's most frequent co-authors are John F. Dipersio, MD (14 shared papers), Timothy J. Ley, MD (9 shared papers) and Daniel C. Link, MD (7 shared papers).

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