Cognitive DysfunctionCognition DisordersRamipril
Dr. Robert John Isaak, MD, PharmD
NPI1619197464PAC ID6507929783
- Medicare services, 2024
- 1,915
- Medicare patients, 2024
- 351
- Part D claims, 2024
- 71
- Clinical trials
- 8
- MIPS score, 2024
- 83
- Practice address
- 1121 E 3900 S, Salt Lake City, UT 84124
- Practice phone
- Call (801) 269-0231
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Utah Cancer Specialists
Salt Lake City, Utah
Find Dr. Isaak'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. Robert John Isaak is a radiation oncologist in Salt Lake City, Utah
Dr. Isaak practices at Utah Cancer Specialists in Salt Lake City, Utah.
Dr. Isaak's NPI, 1619197464, was assigned on April 26, 2007. Dr. Isaak graduated from University of Nevada School of Medicine in 2003. Dr. Isaak holds Iowa license 37709.
NPI and contact details
- NPI
- 1619197464NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507929783
- NPI enumeration date
- April 26, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (801) 269-0231
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert John Isaak practices at Utah Cancer Specialists in Salt Lake City, Utah
Dr. Isaak's primary practice is Utah Cancer Specialists, at 1121 E 3900 S, Salt Lake City, UT 84124 in Salt Lake County. The practice phone is (801) 269-0231.
- Utah Cancer Specialists1121 E 3900 S, Salt Lake City, UT 84124 · Salt Lake CountyPhone(801) 269-0231
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert John Isaak is affiliated with 9 sites of care and 5 medical groups
Dr. Isaak's primary practice is Utah Cancer Specialists in Salt Lake City, Utah. Dr. Isaak is also affiliated with Mountain View Hospital. The medical group on file is Utah Cancer Specialists. Dmand AI also links Dr. Isaak to 4 more hospitals, 4 medical groups, 2 group practices and clinics and 1 skilled nursing facility, each named with a free account.
Utah Cancer SpecialistsPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert John Isaak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Isaak practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Utah Cancer Specialists | Available with a free account |
| +8 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Robert John Isaak is one of 59 radiation oncologists in Utah
Radiation oncology is Dr. Isaak's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dmand AI has Dr. Isaak's licenses on file in 2 states: Iowa and Michigan.
Specialties and state licenses
- Radiation oncology, IowaPrimary
- Michigan license
Radiation oncologists near Dr. Isaak
Counts of radiation 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. Robert John Isaak billed Medicare for 1,915 services in 2024
CMS data shows 1,915 Medicare services from Dr. Isaak across 18 procedure codes in 2024, for 351 Medicare patients. Medicare paid $122,877 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 20241,915
Medicare patients351
Paid by Medicare$122,877
Procedure codes18
Dr. Isaak's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,4402024: 1,61034%
- Office and hospital visits
- 2023: 3422024: 30511%
- Other services
- 2023: 202024: 0100%
- Surgery
- 2023: 392024: 0100%
Dr. Isaak compared with the Utah median for radiation oncologists, 2024
- Dr. Isaak
- Utah median
- Medicare services
- 1,915vs 1,03385% above
- Medicare patients
- 351vs 1722.0 times
- Part D claims
- 46vs 5618% below
Medians across 53 radiation oncologists in Utah with Dmand AI profiles that report each measure.
Dr. Isaak'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. Isaak?
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert John Isaak treated 351 Medicare patients in 2024, average age 74
CMS counts 351 Medicare patients who saw Dr. Isaak in 2024. The largest group is 65 to 74, with 184 patients. 75% of them have cancer, and 75% have high blood pressure. 4% are also on Medicaid. Their average risk score is 1.55, 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. Isaak's median patient age at 73, with 48% women.
Medicare patients, 2024351
Average age74
Average risk score1.55
Also on Medicaid4%
Dr. Isaak's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Isaak's Medicare patients by sex, 2024
- Women12435%
- Men22765%
Chronic conditions among Dr. Isaak's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis36%
- Ischemic heart disease29%
- Chronic kidney disease28%
- Diabetes25%
- COPD23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Isaak'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
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert John Isaak wrote 71 Medicare Part D claims in 2024
In 2024, Dr. Isaak wrote 71 Medicare Part D claims for 34 patients. 90% of them were for generic drugs. CMS names the drug for 46 of them, across 2 drugs with 11 or more claims each, at $441 in total drug cost. In 2021, CMS named 14 claims across 1 drug.
Part D claims, 202471
Drugs named by CMS2
Total drug cost$441
Part D patients34
Dr. Isaak's Part D claims by kind of drug, 2024
- Generic64 claims90%
- Brand-name and other7 claims10%
Dr. Isaak'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, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 142024: 46229%
Drugs named by CMS: 2 in 2024, 1 in 2021.
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. Robert John Isaak 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 Dr. Isaak for performance year 2024, reported as part of a group. Dr. Isaak accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Isaak as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Isaak's MIPS scores, performance year 2024
- 83of 100Final score
- 83.7of 100Quality
- 78of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 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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Dr. Robert John Isaak has worked on 8 clinical trials
Dmand AI links Dr. Isaak to 8 clinical trials, 2 of them phase 2 studies. 4 are still active or recruiting. Conditions studied include Anal Canal Carcinoma, Breast Neoplasms and Cognitive Dysfunction. NRG Oncology sponsors the most, 3.
Clinical trials with Dr. Isaak by phase
- NonePhase 1: no trials
- 2Phase 2: 2 trials
- 2Phase 2/3: 2 trials
- 1Phase 3: 1 trial
- NonePhase 4: no trials
Trials with no phase (devices, behavioral studies) are left out.
Conditions in Dr. Isaak's trials
- Anal Canal Carcinoma
- Breast Neoplasms
- Cognitive Dysfunction
- Oral Ulcer
- Prostatic Neoplasms
Investigators on the most trials with Dr. Isaak
- Leander Cannick, MD3 shared trials
- Harish Gangaram Ahuja, MD2 shared trials
- Daniel H. Barnett, MD2 shared trials
Recent clinical trials with Dr. Isaak
A Randomized Phase II Study of De-Intensified ChemoRadiation for Early-Stage Anal Squamous Cell Carcinoma (DECREASE) (opens in a new tab)
Active, not recruitingPhase 2
Anal Canal CarcinomaAnus NeoplasmsCapecitabineFluorouracilMitomycin
Breast NeoplasmsBreast DiseasesEndocrine Therapy (Tamoxifen, Anastrozol, Letrozole, Exemestane)
Clonidine HCl MBT vs. Placebo to Prevent Chemoradiotherapy-Induced Severe Oral Mucositis in Oropharyngeal Cancer. (opens in a new tab)
TerminatedPhase 2/3
Oral UlcerStomatitisClonidine HCl Mucoadhesive Buccal Tablet
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert John Isaak received $3,402 in industry payments from 2016 to 2025
CMS Open Payments shows 51 general payments to Dr. Isaak from 20 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 66% of the total. IsoRay, Inc paid the most, $2,312.
General payments to Dr. Isaak by program year, 2016 to 2025
General payments to Dr. Isaak by kind, 2016 to 2025
$3.4Kin total
- Travel and lodging$2,23666%
- Food and beverage$1,16634%
Companies that paid Dr. Isaak 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. Robert John Isaak graduated from University of Nevada School of Medicine
Dr. Isaak graduated from University of Nevada School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert John Isaak'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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (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. Robert John Isaak
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. Robert John Isaak's NPI number?
Dr. Robert John Isaak's NPI number is 1619197464. It was assigned on April 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert John Isaak?
Dr. Robert John Isaak is a radiation oncologist in Salt Lake City, Utah. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Robert John Isaak practice?
Dr. Isaak practices at 1121 E 3900 S, Salt Lake City, UT 84124. Dr. Isaak's primary practice is Utah Cancer Specialists in Salt Lake City, Utah. Dmand AI also links Dr. Isaak to 4 hospitals, 4 medical groups, 2 group practices and clinics and 1 skilled nursing facility.
What is Dr. Robert John Isaak's office phone number?
The practice phone on file for Dr. Isaak is (801) 269-0231.
What is Dr. Robert John Isaak's medical license number?
Dr. Isaak holds Iowa license 37709, one of the licenses on file in 2 states.
Which states has Dr. Robert John Isaak been licensed in?
Dmand AI has state licenses on file for Dr. Isaak in Iowa and Michigan.
Which hospitals is Dr. Robert John Isaak affiliated with?
Dr. Isaak is affiliated with Mountain View Hospital. Dmand AI links Dr. Isaak to 4 more hospitals.
What medical group is Dr. Robert John Isaak part of?
Dr. Isaak is linked to Utah Cancer Specialists. Dmand AI links Dr. Isaak to 4 more medical groups.
Does Dr. Robert John Isaak accept Medicare?
Yes. CMS data shows Dr. Isaak billed Medicare for 1,915 services in 2024, and Dr. Isaak accepts Medicare assignment.
Does Dr. Robert John Isaak offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Isaak as offering telehealth services.
Show 8 more questionsShow fewer questions
What is Dr. Robert John Isaak's MIPS score?
Dr. Isaak's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Robert John Isaak see?
CMS counts 351 Medicare patients who saw Dr. Isaak in 2024, with an average age of 74.
What services does Dr. Robert John Isaak bill to Medicare?
In 2024, Dr. Isaak's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and radiation oncology (77334).
Where did Dr. Robert John Isaak go to medical school?
Dr. Isaak graduated from University of Nevada School of Medicine in 2003.
What drugs does Dr. Robert John Isaak prescribe most?
In 2024 Medicare Part D data, Dr. Isaak's most prescribed drugs by claims were Tamsulosin HCl and Memantine HCl.
Has Dr. Robert John Isaak received payments from drug or device companies?
CMS Open Payments shows $3,402 in general payments to Dr. Isaak from 20 companies from 2016 to 2025. The largest total came from IsoRay, Inc.
How long has Dr. Robert John Isaak been practicing?
Dr. Isaak graduated from medical school in 2003, 23 years ago.
Does Dr. Robert John Isaak do research?
Dr. Isaak has worked on 8 clinical trials.
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