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Dr. David Alan Claassen, MD, PhD
NPI1871892455
- Part D claims, 2024
- 12
- Publications
- 3
- MIPS score, 2024
- 80
- Hospital affiliations
- 1
- Industry payments
- $82
- Practice address
- 200 Hawkins Drive, Iowa City, IA 52242
- Practice phone
- Call (319) 356-1616
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Claassen's professional email, personal email and mobile number
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Dr. David Alan Claassen is a pediatric hematology and oncology physician in Iowa City, Iowa
Dr. Claassen practices at University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa.
Dr. Claassen's NPI, 1871892455, was assigned on March 22, 2011. Dr. Claassen graduated from University of Nebraska College of Medicine in 2011. Dr. Claassen holds Iowa license MD-45319.
NPI and contact details
- NPI
- 1871892455NPI Registry (opens in a new tab)
- NPI enumeration date
- March 22, 2011
- NPI status
- Active
- Practice phone
- (319) 356-1616
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David Alan Claassen practices at University of Iowa Health Care Medical Center in Iowa City, Iowa
Dr. Claassen'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.
- University of Iowa Health Care Medical Center200 Hawkins Drive, Iowa City, IA 52242 · Johnson CountyPhone(319) 356-1616
Source: Dmand AI Affiliation Data
Dr. David Alan Claassen is affiliated with 1 site of care and 1 medical group
Dr. Claassen'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 Scanlan Center for School Mental Health Clinic.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Alan Claassen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Claassen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Iowa Health Care Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Claassen practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across The University of Iowa and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David Alan Claassen is one of 22 pediatric hematologys and oncology physicians in Iowa
Pediatric hematology-oncology is Dr. Claassen's primary specialty in the NPI Registry, under taxonomy code 2080P0207X. Dmand AI has Dr. Claassen's licenses on file in 2 states: Iowa and Texas.
Specialties and state licenses
- Pediatric hematology and oncology, IowaPrimary
- Neonatal-perinatal medicine, Texas
Pediatric hematologys and oncology physicians near Dr. Claassen
Counts of pediatric hematologys and oncology physicians with a Dmand AI profile, by place and practice. Each opens the list.
22pediatric hematologys and oncology physicians in Iowa12pediatric hematologys and oncology physicians in Iowa City10pediatric hematologys and oncology physicians at University of Iowa Health Care Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. David Alan Claassen's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. Claassen's median patient age at 10, with 60% women.
Dr. Claassen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women60%
- Men39%
Source: Dmand AI Patient Panel Data
Dr. David Alan Claassen wrote 12 Medicare Part D claims in 2024
In 2024, Dr. Claassen wrote 12 Medicare Part D claims. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $6,737 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Part D claims, 202412
Drugs named by CMS1
Total drug cost$6,737
Dr. Claassen's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 132023: 1115%
Drugs named by CMS: 1 in 2023, 1 in 2022.
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. David Alan Claassen 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. Claassen for performance year 2024, reported as part of a group.
Dr. Claassen'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.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
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Dr. David Alan Claassen has 3 publications on record
Dmand AI links 3 papers to Dr. Claassen, published from 2018 to 2024. Dr. Claassen's most frequent co-authors are Ahmad Al-Huniti, MD, Jennifer Ann Cox, MD and Jeremie Heath Estepp, MD.
Papers3
Years published2018 to 2024
Dr. Claassen's papers by year, 2018 to 2024
Dr. Claassen's most frequent co-authors
- Ahmad Al-Huniti, MD1 shared paper
- Jennifer Ann Cox, MD1 shared paper
- Jeremie Heath Estepp, MD1 shared paper
Recent publications by Dr. Claassen
Cold Spring Harb Mol Case Stud
Adenosine DeaminaseAnemia, Diamond-BlackfanAnemia, Hypoplastic, Congenital
See who Dr. Claassen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Claassen works with, so you can find a warm path to the right pediatric hematologys and oncology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Alan Claassen received $82 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Claassen from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $82.
Companies that paid Dr. Claassen the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Alan Claassen graduated from University of Nebraska College of Medicine
Dr. Claassen graduated from University of Nebraska College of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Alan Claassen'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 | 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. David Alan Claassen
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. David Alan Claassen's NPI number?
Dr. David Alan Claassen's NPI number is 1871892455. It was assigned on March 22, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. David Alan Claassen?
Dr. David Alan Claassen is a pediatric hematology and oncology physician in Iowa City, Iowa. The primary specialty in the NPI Registry is Pediatric Hematology & Oncology Physician (taxonomy code 2080P0207X).
Where does Dr. David Alan Claassen practice?
Dr. Claassen practices at 200 Hawkins Drive, Iowa City, IA 52242. Dr. Claassen's primary practice is University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa.
What is Dr. David Alan Claassen's office phone number?
The practice phone on file for Dr. Claassen is (319) 356-1616.
What is Dr. David Alan Claassen's medical license number?
Dr. Claassen holds Iowa license MD-45319, one of the licenses on file in 2 states.
Which states has Dr. David Alan Claassen been licensed in?
Dmand AI has state licenses on file for Dr. Claassen in Iowa and Texas.
Which hospitals is Dr. David Alan Claassen affiliated with?
Dr. Claassen practices at University of Iowa Health Care Medical Center in Iowa City, Iowa.
What medical group is Dr. David Alan Claassen part of?
Dr. Claassen is linked to Scanlan Center for School Mental Health Clinic.
What is Dr. David Alan Claassen's MIPS score?
Dr. Claassen's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.
Where did Dr. David Alan Claassen go to medical school?
Dr. Claassen graduated from University of Nebraska College of Medicine in 2011.
Show 5 more questionsShow fewer questions
What drugs does Dr. David Alan Claassen prescribe most?
In 2023 Medicare Part D data, Dr. Claassen's most prescribed drugs by claims were Eliquis.
Has Dr. David Alan Claassen received payments from drug or device companies?
CMS Open Payments shows $82 in general payments to Dr. Claassen from 1 company from 2018 to 2018. The largest total came from Genentech, Inc.
How long has Dr. David Alan Claassen been practicing?
Dr. Claassen graduated from medical school in 2011, 15 years ago.
Does Dr. David Alan Claassen do research?
Dmand AI links 3 publications to Dr. Claassen, published from 2018 to 2024.
Who does Dr. David Alan Claassen publish with?
Dr. Claassen's most frequent co-authors are Ahmad Al-Huniti, MD (1 shared paper), Jennifer Ann Cox, MD (1 shared paper) and Jeremie Heath Estepp, MD (1 shared paper).
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