Dr. Adam Garretson Rock, MD
- Medicare services, 2024
- 1,047
- Medicare patients, 2024
- 251
- Part D claims, 2024
- 722
- Publications
- 16
- MIPS score, 2024
- 93
- Practice address
- 1500 Duarte Rd, Duarte, CA 91010
- Practice phone
- Call (800) 826-4673
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
City of Hope Comprehensive Cancer Center - Duarte
Duarte, California
Find Dr. Rock'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. Adam Garretson Rock is a medical oncologist in Duarte, California
Dr. Rock practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.
Dr. Rock's NPI, 1477907715, was assigned on April 22, 2016. Dr. Rock graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2016. Dr. Rock holds California license A162794.
- NPI
- 1477907715NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406143122
- NPI enumeration date
- April 22, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (800) 826-4673
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Adam Garretson Rock practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California
Dr. Rock's primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.
- City of Hope Comprehensive Cancer Center - Duarte1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Adam Garretson Rock is affiliated with 3 sites of care and 1 medical group
Dr. Rock's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dr. Rock is also affiliated with USC Arcadia Hospital. The medical group on file is City of Hope. Dmand AI also links Dr. Rock to 1 more other site, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Adam Garretson Rock's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rock practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| City of Hope Comprehensive Cancer Center - Duarte | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Adam Garretson Rock is one of 415 medical oncologists in California
Medical oncology is Dr. Rock's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Rock is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Rock's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Medical oncology, CaliforniaPrimary
- Illinois license
Clinical focus
Dmand AI lists chronic anemia, fluid and electrolyte imbalances, lung cancer and prostate cancer among the conditions Dr. Rock treats.
Medical oncologists near Dr. Rock
Counts of medical 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. Adam Garretson Rock billed Medicare for 1,047 services in 2024
CMS data shows 1,047 Medicare services from Dr. Rock across 5 procedure codes in 2024, for 251 Medicare patients. Medicare paid $75,694 for them.
Dr. Rock's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7182024: 7042%
- Other services
- 2023: 02024: 343
Where Dr. Rock's Medicare services took place, 2024
- In an office959%
- In a facility95291%
Dr. Rock compared with the California median for medical oncologists, 2024
- Dr. Rock
- California median
- Medicare services
- 1,047vs 4962.1 times
- Medicare patients
- 251vs 15463% above
- Part D claims
- 517vs 1443.6 times
Medians across 358 medical oncologists in California with Dmand AI profiles that report each measure.
Dr. Rock'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. Rock?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rock and other medical oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Adam Garretson Rock treated 251 Medicare patients in 2024, average age 72
CMS counts 251 Medicare patients who saw Dr. Rock in 2024. The largest group is 65 to 74, with 127 patients. 75% of them have cancer, and 75% have high blood pressure. 45% are also on Medicaid. Their average risk score is 3.01, 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. Rock's median patient age at 69, with 52% women.
Dr. Rock's Medicare patients by age, 2024
Dr. Rock's Medicare patients by sex, 2024
- Women11445%
- Men13755%
Chronic conditions among Dr. Rock's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol74%
- Arthritis43%
- Diabetes41%
- Ischemic heart disease40%
- COPD30%
- Chronic kidney disease30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rock'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
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Adam Garretson Rock wrote 722 Medicare Part D claims in 2024
In 2024, Dr. Rock wrote 722 Medicare Part D claims for 127 patients. 58% of them were for generic drugs. CMS names the drug for 517 of them, across 19 drugs with 11 or more claims each, at $3,668,074 in total drug cost. In 2023, CMS named 525 claims across 16 drugs.
Dr. Rock's Part D claims by kind of drug, 2024
- Generic419 claims58%
- Brand-name303 claims42%
Dr. Rock'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 Dr. Rock's Part D claims, 2024
- Opioids2%17 of 722 claims
- Antibiotics2%11 of 722 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: 5252024: 5172%
Drugs named by CMS: 19 in 2024, 16 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. Adam Garretson Rock scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Rock for performance year 2024, reported as part of a group. Dr. Rock accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rock as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Rock's MIPS scores, performance year 2024
- 93of 100Final score
- 78.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Adam Garretson Rock has 16 publications on record
Dmand AI links 16 papers to Dr. Rock, published from 2015 to 2025. 2023 was the busiest year, with 5. The most frequent topics are Carcinoma, Renal Cell, HIV Infections and Kidney Neoplasms. Dr. Rock's most frequent co-authors are Neal Shiv Chawla, MBBS, MD, Alexander Chehrazi-Raffle, MD and Nazli Dizman, MD.
Dr. Rock's papers by year, 2015 to 2025
Topics Dr. Rock writes about most
- Carcinoma, Renal Cell
- HIV Infections
- Kidney Neoplasms
- Brain Neoplasms
- Hepatitis C
Dr. Rock's most frequent co-authors
- Neal Shiv Chawla, MBBS, MD5 shared papers
- Alexander Chehrazi-Raffle, MD4 shared papers
- Nazli Dizman, MD3 shared papers
Recent publications by Dr. Rock
JAMA Netw Open
Clin Lung Cancer
See who Dr. Rock researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rock works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Adam Garretson Rock received $3,766 in industry payments from 2019 to 2025
CMS Open Payments shows 71 general payments to Dr. Rock from 24 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 55% of the total. Intuitive Surgical, Inc. paid the most, $1,500.
General payments to Dr. Rock by program year, 2019 to 2025
General payments to Dr. Rock by kind, 2019 to 2025
- Food and beverage$2,08955%
- Speaker and faculty fees$1,50040%
- Education$1775%
Companies that paid Dr. Rock the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Adam Garretson Rock graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science
Dr. Rock graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2016.
- Medical school
- Board certified in hematology
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Adam Garretson Rock accepts plans from 11 insurance carriers
Dr. Rock is in network with 11 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- +3 more carriersWith a free account
Plan types Dr. Rock accepts, by number of carriers
- Medicare7
- PPO7
- HMO5
- EPO3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Adam Garretson Rock'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 DataDmand AI Org Hierarchy 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. Adam Garretson Rock
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. Adam Garretson Rock's NPI number?
Dr. Adam Garretson Rock's NPI number is 1477907715. It was assigned on April 22, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Adam Garretson Rock?
Dr. Adam Garretson Rock is a medical oncologist in Duarte, California. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Adam Garretson Rock practice?
Dr. Rock practices at 1500 Duarte Rd, Duarte, CA 91010. Dr. Rock's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Dr. Rock to 1 other site.
What is Dr. Adam Garretson Rock's office phone number?
The practice phone on file for Dr. Rock is (800) 826-4673.
What is Dr. Adam Garretson Rock's medical license number?
Dr. Rock holds California license A162794, one of the licenses on file in 2 states.
Which states has Dr. Adam Garretson Rock been licensed in?
Dmand AI has state licenses on file for Dr. Rock in California (2019 to 2027) and Illinois (2016 to 2019).
Which hospitals is Dr. Adam Garretson Rock affiliated with?
Dr. Rock is affiliated with USC Arcadia Hospital.
What medical group is Dr. Adam Garretson Rock part of?
Dr. Rock is linked to City of Hope.
Does Dr. Adam Garretson Rock accept Medicare?
Yes. CMS data shows Dr. Rock billed Medicare for 1,047 services in 2024, and Dr. Rock accepts Medicare assignment.
Does Dr. Adam Garretson Rock offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Rock as offering telehealth services.
Show 11 more questionsShow fewer questions
What is Dr. Adam Garretson Rock's MIPS score?
Dr. Rock's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does Dr. Adam Garretson Rock see?
CMS counts 251 Medicare patients who saw Dr. Rock in 2024, with an average age of 72.
Is Dr. Adam Garretson Rock board certified?
Yes. Dr. Rock is board certified in hematology by the American Board of Internal Medicine.
What services does Dr. Adam Garretson Rock bill to Medicare?
In 2024, Dr. Rock's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99215).
Where did Dr. Adam Garretson Rock go to medical school?
Dr. Rock graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2016.
What drugs does Dr. Adam Garretson Rock prescribe most?
In 2024 Medicare Part D data, Dr. Rock's most prescribed drugs by claims were Tagrisso, Ondansetron HCl and Prochlorperazine Maleate.
Has Dr. Adam Garretson Rock received payments from drug or device companies?
CMS Open Payments shows $3,766 in general payments to Dr. Rock from 24 companies from 2019 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Adam Garretson Rock been practicing?
Dr. Rock graduated from medical school in 2016, 10 years ago.
Does Dr. Adam Garretson Rock do research?
Dmand AI links 16 publications to Dr. Rock, published from 2015 to 2025.
Who does Dr. Adam Garretson Rock publish with?
Dr. Rock's most frequent co-authors are Neal Shiv Chawla, MBBS, MD (5 shared papers), Alexander Chehrazi-Raffle, MD (4 shared papers) and Nazli Dizman, MD (3 shared papers).
What insurance does Dr. Adam Garretson Rock accept?
Dr. Rock is in network with 11 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
Selling to medical oncology practices?
See medical oncologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card