Jonathan E. Clark
- Medicare services, 2024
- 3,978
- Medicare patients, 2024
- 460
- Part D claims, 2024
- 118
- MIPS score, 2024
- 85
- Hospital affiliations
- 3
- Practice address
- 1531 Esplanade, Chico, CA 95926
- Practice phone
- Call (530) 332-7300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Jonathan Clark's professional email, personal email and mobile number
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Jonathan E. Clark is a radiation oncologist in Chico, California
Jonathan Clark practices at Enloe Health in Chico, California, part of Enloe Health.
Jonathan Clark's NPI, 1548497407, was assigned on June 18, 2009. Jonathan Clark graduated from Loma Linda University School of Medicine in 2008. Jonathan Clark holds Colorado license 52225.
- NPI
- 1548497407NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527202423
- NPI enumeration date
- June 18, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (530) 332-7300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Jonathan E. Clark practices at Enloe Health in Chico, California
Jonathan Clark's primary practice is Enloe Health, at 1531 Esplanade, Chico, CA 95926 in Butte County. The practice phone is (530) 332-7300.
- Enloe Health1531 Esplanade, Chico, CA 95926 · Butte CountyPhone(530) 332-7300
Source: Dmand AI Affiliation Data
Jonathan E. Clark is affiliated with 4 sites of care and 2 medical groups
Jonathan Clark's primary practice is Enloe Health in Chico, California, part of Enloe Health. Jonathan Clark is also affiliated with Oroville Hospital. The medical group on file is Enloe Specialty Physicians. Dmand AI also links Jonathan Clark to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Jonathan E. Clark's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Jonathan Clark practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Enloe Health | Available with a free account |
| +3 more sites and 1 medical group | 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 Enloe Health and 6.2K+ hospitals, with verified contacts in the same login.
Jonathan E. Clark is one of 685 radiation oncologists in California
Radiation oncology is Jonathan Clark's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Jonathan Clark is licensed in Colorado.
Specialties and state licenses
- Radiation oncology, ColoradoPrimary
Radiation oncologists near Jonathan Clark
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
Jonathan E. Clark billed Medicare for 3,978 services in 2024
CMS data shows 3,978 Medicare services from Jonathan Clark across 17 procedure codes in 2024, for 460 Medicare patients. Medicare paid $266,338 for them. Every service was in an office.
Jonathan Clark's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 4,3252024: 3,50519%
- Office and hospital visits
- 2023: 4762024: 4731%
Jonathan Clark compared with the California median for radiation oncologists, 2024
- Jonathan Clark
- California median
- Medicare services
- 3,978vs 1,4442.8 times
- Medicare patients
- 460vs 1642.8 times
- Part D claims
- 59vs 3284% above
Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.
Jonathan Clark'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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Medicare shows one payer. Book a meeting to get commercial claims data for Jonathan Clark and other radiation oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Jonathan E. Clark treated 460 Medicare patients in 2024, average age 75
CMS counts 460 Medicare patients who saw Jonathan Clark in 2024. The largest group is 65 to 74, with 212 patients. 75% of them have cancer, and 75% have high blood pressure. 22% are also on Medicaid. Their average risk score is 1.66, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Jonathan Clark's median patient age at 76, with 28% women.
Jonathan Clark's Medicare patients by age, 2024
Jonathan Clark's Medicare patients by sex, 2024
- Women16035%
- Men30065%
Chronic conditions among Jonathan Clark's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol74%
- Arthritis37%
- Diabetes28%
- Ischemic heart disease27%
- COPD24%
- Atrial fibrillation22%
Share of Medicare patients with each condition. A patient can have several.
Jonathan Clark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women28%
- Men72%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Jonathan E. Clark wrote 118 Medicare Part D claims in 2024
In 2024, Jonathan Clark wrote 118 Medicare Part D claims for 57 patients. 97% of them were for generic drugs. CMS names the drug for 59 of them, across 4 drugs with 11 or more claims each, at $696 in total drug cost. In 2023, CMS named 25 claims across 2 drugs.
Jonathan Clark's Part D claims by kind of drug, 2024
- Generic115 claims97%
- Brand-name and other3 claims3%
Jonathan Clark'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 Jonathan Clark's Part D claims, 2024
- Opioids15%18 of 118 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: 252024: 59136%
Drugs named by CMS: 4 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
Jonathan E. Clark scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Jonathan Clark for performance year 2024, reported as part of a group. Jonathan Clark accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Jonathan Clark as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Jonathan Clark's MIPS scores, performance year 2024
- 85of 100Final score
- 68.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 67of 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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Jonathan E. Clark received $6,691 in industry payments from 2016 to 2022
CMS Open Payments shows 14 general payments to Jonathan Clark from 4 drug and device companies from 2016 to 2022. Consulting fees make up the largest share, 90% of the total. Viewray Technologies Inc paid the most, $6,443.
General payments to Jonathan Clark by program year, 2016 to 2022
General payments to Jonathan Clark by kind, 2016 to 2022
- Consulting fees$6,00090%
- Food and beverage$3706%
- Travel and lodging$3215%
Companies that paid Jonathan Clark the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Jonathan E. Clark graduated from Loma Linda University School of Medicine
Jonathan Clark graduated from Loma Linda University School of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Jonathan E. Clark'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 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) |
| 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 Jonathan E. Clark
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Jonathan E. Clark's NPI number?
Jonathan E. Clark's NPI number is 1548497407. It was assigned on June 18, 2009, and it is active in the NPI Registry.
What does Jonathan E. Clark specialize in?
Jonathan E. Clark is a radiation oncologist in Chico, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Jonathan E. Clark practice?
Jonathan Clark practices at 1531 Esplanade, Chico, CA 95926. Jonathan Clark's primary practice is Enloe Health in Chico, California, part of Enloe Health. Dmand AI also links Jonathan Clark to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Jonathan E. Clark's office phone number?
The practice phone on file for Jonathan Clark is (530) 332-7300.
What is Jonathan E. Clark's medical license number?
Jonathan Clark holds Colorado license 52225.
Which hospitals is Jonathan E. Clark affiliated with?
Jonathan Clark practices at Enloe Health in Chico, California. Jonathan Clark is also affiliated with Oroville Hospital. Dmand AI links Jonathan Clark to 1 more hospital.
What medical group is Jonathan E. Clark part of?
Jonathan Clark is linked to Enloe Specialty Physicians. Dmand AI links Jonathan Clark to 1 more medical group.
Does Jonathan E. Clark accept Medicare?
Yes. CMS data shows Jonathan Clark billed Medicare for 3,978 services in 2024, and Jonathan Clark accepts Medicare assignment.
Does Jonathan E. Clark offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Jonathan Clark as offering telehealth services.
What is Jonathan E. Clark's MIPS score?
Jonathan Clark's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Jonathan E. Clark see?
CMS counts 460 Medicare patients who saw Jonathan Clark in 2024, with an average age of 75.
What services does Jonathan E. Clark bill to Medicare?
In 2024, Jonathan Clark's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and radiation oncology (77427).
Where did Jonathan E. Clark go to medical school?
Jonathan Clark graduated from Loma Linda University School of Medicine in 2008.
What drugs does Jonathan E. Clark prescribe most?
In 2024 Medicare Part D data, Jonathan Clark's most prescribed drugs by claims were Tamsulosin HCl, Dexamethasone and Hydrocodone-Acetaminophen.
Has Jonathan E. Clark received payments from drug or device companies?
CMS Open Payments shows $6,691 in general payments to Jonathan Clark from 4 companies from 2016 to 2022. The largest total came from Viewray Technologies Inc.
How long has Jonathan E. Clark been practicing?
Jonathan Clark graduated from medical school in 2008, 18 years ago.
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