J Biol Chem
Dr. Martin Majer, MD
- Medicare services, 2024
- 265
- Medicare patients, 2024
- 121
- Part D claims, 2024
- 285
- Publications
- 9
- MIPS score, 2024
- 100
- Practice address
- 18564 Us-18, Apple Valley, CA 92307
- Practice phone
- Call (760) 503-5910
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Interventional Radiation Oncology of California Inc
Apple Valley, California
Find Dr. Majer'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. Martin Majer is a hematologist and oncologist in Apple Valley, California
Dr. Majer practices at Interventional Radiation Oncology of California Inc in Apple Valley, California.
Dr. Majer's NPI, 1376749234, was assigned on June 26, 2007. Dr. Majer graduated from Charles University - Karlova and Hradci Faculty of Medicine in 1987. Dr. Majer holds Montana license MED-PHYS-LIC-112718.
- NPI
- 1376749234NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486609476
- NPI enumeration date
- June 26, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (760) 503-5910
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Martin Majer practices at Interventional Radiation Oncology of California Inc in Apple Valley, California
Dr. Majer's primary practice is Interventional Radiation Oncology of California Inc, at 18564 Us-18, Apple Valley, CA 92307 in San Bernardino County. The practice phone is (760) 503-5910.
- Interventional Radiation Oncology of California Inc18564 Us-18, Apple Valley, CA 92307 · San Bernardino CountyPhone(760) 503-5910
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Martin Majer is affiliated with 5 sites of care and 2 medical groups
Dr. Majer's primary practice is Interventional Radiation Oncology of California Inc in Apple Valley, California. Dr. Majer is also affiliated with Riverside Community Hospital. The medical group on file is Western Radiation Oncology. Dmand AI also links Dr. Majer to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Martin Majer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Majer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Interventional Radiation Oncology of California Inc | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Martin Majer is one of 1,502 hematologists and oncologists in California
Hematology and oncology is Dr. Majer's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Majer is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Majer's licenses on file in 4 states: Montana, Oregon, California and Utah.
Specialties and state licenses
- Hematology and oncology, MontanaPrimary
- Oregon license
- California license
- Utah license
Clinical focus
Dmand AI lists arterial blot clot /embolism, breast cancer, chronic anemia, chronic embolism thrombosis, chronic leukemia, colorectal cancer, deep vein thrombosis (DVT) and lung cancer among the conditions Dr. Majer treats.
Hematologists and oncologists near Dr. Majer
Counts of hematologists and oncologists 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. Martin Majer billed Medicare for 265 services in 2024
CMS data shows 265 Medicare services from Dr. Majer across 5 procedure codes in 2024, for 121 Medicare patients. Medicare paid $21,601 for them.
Dr. Majer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2762024: 26579%
- Other services
- 2023: 182024: 0100%
Where Dr. Majer's Medicare services took place, 2024
- In an office3011%
- In a facility23589%
Dr. Majer compared with the California median for hematologists and oncologists, 2024
- Dr. Majer
- California median
- Medicare services
- 265vs 93272% below
- Medicare patients
- 121vs 22546% below
- Part D claims
- 139vs 39465% below
Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.
Dr. Majer'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. Majer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Majer and other hematologists and oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Martin Majer treated 121 Medicare patients in 2024, average age 74
CMS counts 121 Medicare patients who saw Dr. Majer in 2024. The largest group is 65 to 74, with 68 patients. 69% of them have high blood pressure, and 61% have high cholesterol. 19% are also on Medicaid. Their average risk score is 2.12, 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. Majer's median patient age at 69, with 62% women.
Dr. Majer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Majer's Medicare patients by sex, 2024
- Women7058%
- Men5142%
Chronic conditions among Dr. Majer's Medicare patients, 2024
- High blood pressure69%
- High cholesterol61%
- Cancer53%
- Arthritis42%
- Diabetes36%
- Ischemic heart disease34%
- Anxiety25%
- Atrial fibrillation25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Majer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Martin Majer wrote 285 Medicare Part D claims in 2024
In 2024, Dr. Majer wrote 285 Medicare Part D claims for 79 patients. 74% of them were for generic drugs. CMS names the drug for 139 of them, across 8 drugs with 11 or more claims each, at $412,385 in total drug cost. In 2023, CMS named 385 claims across 17 drugs.
Dr. Majer's Part D claims by kind of drug, 2024
- Generic212 claims74%
- Brand-name73 claims26%
Dr. Majer'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: 3852024: 13964%
Drugs named by CMS: 8 in 2024, 17 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
Dr. Martin Majer scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Majer for performance year 2024, reported as part of a group. Dr. Majer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Majer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Majer's MIPS scores, performance year 2024
- 100of 100Final score
- 89.3of 100Quality
- 100of 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. Martin Majer has 9 publications on record
Dmand AI links 9 papers to Dr. Majer in 2012. The most frequent topics are Base Sequence, Diabetes Mellitus, Type 2 and RNA, Messenger. Dr. Majer has published most often in Cancer. Dr. Majer's most frequent co-author is Scott K. Kuwada, MD.
Topics Dr. Majer writes about most
- Base Sequence
- Diabetes Mellitus, Type 2
- RNA, Messenger
- Brain Neoplasms
- Indians, North American
- Insulin Resistance
- Molecular Sequence Data
- Muscle, Skeletal
Dr. Majer's most frequent co-authors
Recent publications by Dr. Majer
See who Dr. Majer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Majer works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Martin Majer received $8,610 in industry payments from 2016 to 2025
CMS Open Payments shows 249 general payments to Dr. Majer from 48 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 79% of the total. Novartis Pharmaceuticals Corporation paid the most, $1,772.
General payments to Dr. Majer by program year, 2016 to 2025
General payments to Dr. Majer by kind, 2016 to 2025
- Food and beverage$6,79079%
- Device or supply loans$1,28015%
- Education$5406%
Companies that paid Dr. Majer the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Martin Majer graduated from Charles University - Karlova and Hradci Faculty of Medicine
Dr. Majer graduated from Charles University - Karlova and Hradci Faculty of Medicine in 1987.
- Medical school
- Board certified in hematology
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Martin Majer accepts plans from 15 insurance carriers
Dr. Majer is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Humana
- Molina
- +7 more carriersWith a free account
Plan types Dr. Majer accepts, by number of carriers
- Medicare10
- PPO9
- HMO7
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Martin Majer'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 |
| 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. Martin Majer
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. Martin Majer's NPI number?
Dr. Martin Majer's NPI number is 1376749234. It was assigned on June 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Martin Majer?
Dr. Martin Majer is a hematologist and oncologist in Apple Valley, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Martin Majer practice?
Dr. Majer practices at 18564 Us-18, Apple Valley, CA 92307. Dr. Majer's primary practice is Interventional Radiation Oncology of California Inc in Apple Valley, California. Dmand AI also links Dr. Majer to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Martin Majer's office phone number?
The practice phone on file for Dr. Majer is (760) 503-5910.
What is Dr. Martin Majer's medical license number?
Dr. Majer holds Montana license MED-PHYS-LIC-112718, one of the licenses on file in 4 states.
Which states has Dr. Martin Majer been licensed in?
Dmand AI has state licenses on file for Dr. Majer in Montana (2022 to 2026), Oregon (since 2007), California (1999 to 2026) and Utah (2004 to 2008).
Which hospitals is Dr. Martin Majer affiliated with?
Dr. Majer is affiliated with Riverside Community Hospital. Dmand AI links Dr. Majer to 1 more hospital.
What medical group is Dr. Martin Majer part of?
Dr. Majer is linked to Western Radiation Oncology. Dmand AI links Dr. Majer to 1 more medical group.
Does Dr. Martin Majer accept Medicare?
Yes. CMS data shows Dr. Majer billed Medicare for 265 services in 2024, and Dr. Majer accepts Medicare assignment.
Does Dr. Martin Majer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Majer as offering telehealth services.
Show 11 more questionsShow fewer questions
What is Dr. Martin Majer's MIPS score?
Dr. Majer's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Martin Majer see?
CMS counts 121 Medicare patients who saw Dr. Majer in 2024, with an average age of 74.
Is Dr. Martin Majer board certified?
Yes. Dr. Majer is board certified in hematology by the American Board of Internal Medicine.
What services does Dr. Martin Majer bill to Medicare?
In 2024, Dr. Majer's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and office visit, established patient (99215).
Where did Dr. Martin Majer go to medical school?
Dr. Majer graduated from Charles University - Karlova and Hradci Faculty of Medicine in 1987.
What drugs does Dr. Martin Majer prescribe most?
In 2024 Medicare Part D data, Dr. Majer's most prescribed drugs by claims were Anastrozole, Ondansetron ODT and Hydroxyurea.
Has Dr. Martin Majer received payments from drug or device companies?
CMS Open Payments shows $8,610 in general payments to Dr. Majer from 48 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Martin Majer been practicing?
Dr. Majer graduated from medical school in 1987, 39 years ago.
Does Dr. Martin Majer do research?
Dmand AI links 9 publications to Dr. Majer.
Who does Dr. Martin Majer publish with?
Dr. Majer's most frequent co-authors are Scott K. Kuwada, MD (1 shared paper).
What insurance does Dr. Martin Majer accept?
Dr. Majer is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
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