Int J Radiat Oncol Biol Phys
Aspartic AcidBenzamidesCarcinoma, Non-Small-Cell Lung
Andrew J. Leiker
NPI1568859023PAC ID4981977311
- Medicare services, 2024
- 3,793
- Medicare patients, 2024
- 585
- Part D claims, 2024
- 116
- Publications
- 8
- MIPS score, 2024
- 83
- Practice address
- 1705 E Broadway, Columbia, MO 65201
- Practice phone
- Call (573) 874-7800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Missouri Cancer Associates
Columbia, Missouri
Find Andrew Leiker's professional email, personal email and mobile number
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Andrew J. Leiker is a radiation oncologist in Columbia, Missouri
Andrew Leiker practices at Missouri Cancer Associates in Columbia, Missouri.
Andrew Leiker's NPI, 1568859023, was assigned on April 22, 2015. Andrew Leiker graduated from Medical College of Wisconsin in 2015. Andrew Leiker holds Missouri license 2019043653.
NPI and contact details
- NPI
- 1568859023NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981977311
- NPI enumeration date
- April 22, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (573) 874-7800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Andrew J. Leiker practices at Missouri Cancer Associates in Columbia, Missouri
Andrew Leiker's primary practice is Missouri Cancer Associates, at 1705 E Broadway, Columbia, MO 65201 in Boone County. The practice phone is (573) 874-7800.
- Missouri Cancer Associates1705 E Broadway, Columbia, MO 65201 · Boone CountyPhone(573) 874-7800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Andrew J. Leiker is affiliated with 6 sites of care and 3 medical groups
Andrew Leiker's primary practice is Missouri Cancer Associates in Columbia, Missouri. Andrew Leiker is also affiliated with University Hospital. The medical group on file is Missouri Cancer Associates. Dmand AI also links Andrew Leiker to 2 more hospitals, 2 group practices and clinics and 2 medical groups, each named with a free account.
Missouri Cancer AssociatesPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Andrew J. Leiker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Andrew Leiker practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Missouri Cancer Associates | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Andrew J. Leiker is one of 117 radiation oncologists in Missouri
Radiation oncology is Andrew Leiker's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Andrew Leiker is licensed in Missouri.
Specialties and state licenses
- Radiation oncology, MissouriPrimary
Radiation oncologists near Andrew Leiker
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
117radiation oncologists in Missouri
8radiation oncologists in Columbia
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Andrew J. Leiker billed Medicare for 3,793 services in 2024
CMS data shows 3,793 Medicare services from Andrew Leiker across 22 procedure codes in 2024, for 585 Medicare patients. Medicare paid $463,453 for them.
Medicare services, 20243,793
Medicare patients585
Paid by Medicare$463,453
Procedure codes22
Andrew Leiker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,0852024: 2,60425%
- Other services
- 2023: 5372024: 86261%
- Office and hospital visits
- 2023: 2342024: 32740%
Where Andrew Leiker's Medicare services took place, 2024
- In an office2,29761%
- In a facility1,49639%
Andrew Leiker compared with the Missouri median for radiation oncologists, 2024
- Andrew Leiker
- Missouri median
- Medicare services
- 3,793vs 1,2103.1 times
- Medicare patients
- 585vs 1813.2 times
- Part D claims
- 60vs 60Close to median
Medians across 117 radiation oncologists in Missouri with Dmand AI profiles that report each measure.
Andrew Leiker'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Andrew J. Leiker treated 585 Medicare patients in 2024, average age 74
CMS counts 585 Medicare patients who saw Andrew Leiker in 2024. The largest group is 65 to 74, with 299 patients. 75% of them have cancer, and 75% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.60, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Andrew Leiker's median patient age at 73, with 45% women.
Medicare patients, 2024585
Average age74
Average risk score1.60
Also on Medicaid6%
Andrew Leiker's Medicare patients by age, 2024
Andrew Leiker's Medicare patients by sex, 2024
- Women27747%
- Men30853%
Chronic conditions among Andrew Leiker's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol68%
- Arthritis40%
- Diabetes31%
- COPD27%
- Anxiety24%
- Atrial fibrillation24%
Share of Medicare patients with each condition. A patient can have several.
Andrew Leiker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women45%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Andrew J. Leiker wrote 116 Medicare Part D claims in 2024
In 2024, Andrew Leiker wrote 116 Medicare Part D claims for 62 patients. 88% of them were for generic drugs. CMS names the drug for 60 of them, across 3 drugs with 11 or more claims each, at $1,097 in total drug cost. In 2023, CMS named 26 claims across 2 drugs.
Part D claims, 2024116
Drugs named by CMS3
Total drug cost$1,097
Part D patients62
Andrew Leiker's Part D claims by kind of drug, 2024
- Generic102 claims88%
- Brand-name and other14 claims12%
Andrew Leiker'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 Andrew Leiker's Part D claims, 2024
- Opioids23%27 of 116 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: 262024: 60131%
Drugs named by CMS: 3 in 2024, 2 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
Andrew J. Leiker scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Andrew Leiker for performance year 2024. Andrew Leiker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Andrew Leiker's MIPS scores, performance year 2024
- 83of 100Final score
- 60.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 83of 100Cost
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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Andrew J. Leiker has 8 publications on record
Dmand AI links 8 papers to Andrew Leiker, published from 2013 to 2021. 2018 was the busiest year, with 2. The most frequent topics are Cell Cycle, Cell Line, Tumor and DNA Repair. Andrew Leiker's most frequent co-authors are Jeffrey John Meyer, MD, Michael Ryan Folkert, MD, PhD and Robert Dale Timmerman, MD.
Papers8
Years published2013 to 2021
Andrew Leiker's papers by year, 2013 to 2021
Topics Andrew Leiker writes about most
- Cell Cycle
- Cell Line, Tumor
- DNA Repair
- Head and Neck Neoplasms
- Radiation Tolerance
- Squamous Cell Carcinoma of Head and Neck
- Xenograft Model Antitumor Assays
Andrew Leiker's most frequent co-authors
- Jeffrey John Meyer, MD3 shared papers
- Michael Ryan Folkert, MD, PhD2 shared papers
- Robert Dale Timmerman, MD2 shared papers
Recent publications by Andrew Leiker
Proc (Bayl Univ Med Cent)
See who Andrew Leiker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Andrew Leiker works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Andrew J. Leiker received $6,739 in industry payments from 2017 to 2025
CMS Open Payments shows 261 general payments to Andrew Leiker from 52 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 98% of the total. Novocure Inc. paid the most, $1,124.
General payments to Andrew Leiker by program year, 2017 to 2025
General payments to Andrew Leiker by kind, 2017 to 2025
$6.7Kin total
- Food and beverage$6,60298%
- Education$1372%
Companies that paid Andrew Leiker the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Andrew J. Leiker graduated from Medical College of Wisconsin
Andrew Leiker graduated from Medical College of Wisconsin in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Andrew J. Leiker'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)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 Andrew J. Leiker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Andrew J. Leiker's NPI number?
Andrew J. Leiker's NPI number is 1568859023. It was assigned on April 22, 2015, and it is active in the NPI Registry.
What does Andrew J. Leiker specialize in?
Andrew J. Leiker is a radiation oncologist in Columbia, Missouri. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Andrew J. Leiker practice?
Andrew Leiker practices at 1705 E Broadway, Columbia, MO 65201. Andrew Leiker's primary practice is Missouri Cancer Associates in Columbia, Missouri. Dmand AI also links Andrew Leiker to 2 hospitals, 2 group practices and clinics and 2 medical groups.
What is Andrew J. Leiker's office phone number?
The practice phone on file for Andrew Leiker is (573) 874-7800.
What is Andrew J. Leiker's medical license number?
Andrew Leiker holds Missouri license 2019043653.
Which hospitals is Andrew J. Leiker affiliated with?
Andrew Leiker is affiliated with University Hospital. Dmand AI links Andrew Leiker to 2 more hospitals.
What medical group is Andrew J. Leiker part of?
Andrew Leiker is linked to Missouri Cancer Associates. Dmand AI links Andrew Leiker to 2 more medical groups.
Does Andrew J. Leiker accept Medicare?
Yes. CMS data shows Andrew Leiker billed Medicare for 3,793 services in 2024, and Andrew Leiker accepts Medicare assignment.
What is Andrew J. Leiker's MIPS score?
Andrew Leiker's MIPS final score for performance year 2024 is 83 out of 100.
How many Medicare patients does Andrew J. Leiker see?
CMS counts 585 Medicare patients who saw Andrew Leiker in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Andrew J. Leiker bill to Medicare?
In 2024, Andrew Leiker's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and medicare service (G6015).
Where did Andrew J. Leiker go to medical school?
Andrew Leiker graduated from Medical College of Wisconsin in 2015.
What drugs does Andrew J. Leiker prescribe most?
In 2024 Medicare Part D data, Andrew Leiker's most prescribed drugs by claims were Tamsulosin HCl, Oxycodone HCl and Memantine HCl.
Has Andrew J. Leiker received payments from drug or device companies?
CMS Open Payments shows $6,739 in general payments to Andrew Leiker from 52 companies from 2017 to 2025. The largest total came from Novocure Inc.
How long has Andrew J. Leiker been practicing?
Andrew Leiker graduated from medical school in 2015, 11 years ago.
Does Andrew J. Leiker do research?
Dmand AI links 8 publications to Andrew Leiker, published from 2013 to 2021.
Who does Andrew J. Leiker publish with?
Andrew Leiker's most frequent co-authors are Jeffrey John Meyer, MD (3 shared papers), Michael Ryan Folkert, MD, PhD (2 shared papers) and Robert Dale Timmerman, MD (2 shared papers).
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