Dr. Jens Hillengass, MD
- Medicare services, 2024
- 213
- Medicare patients, 2024
- 140
- Part D claims, 2024
- 173
- Hospital affiliations
- 1
- Industry payments
- $60,660
- Practice address
- 344 S Hauser Blvd, Los Angeles, CA 90036
- Practice phone
- Call (716) 845-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Roswell Park Cancer Institute
Los Angeles, California
Find Dr. Hillengass' 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. Jens Hillengass is a medical oncologist in Los Angeles, California
Dr. Hillengass practices at Roswell Park Cancer Institute in Los Angeles, California.
Dr. Hillengass' NPI, 1447748058, was assigned on April 30, 2018. Dr. Hillengass graduated from University of Heidelberg Faculty of Medicine in 2002. Dr. Hillengass holds New York license 293671.
- NPI
- 1447748058NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436408226
- NPI enumeration date
- April 30, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (716) 845-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jens Hillengass practices at Roswell Park Cancer Institute in Los Angeles, California
Dr. Hillengass' primary practice is Roswell Park Cancer Institute, at 344 S Hauser Blvd, Los Angeles, CA 90036 in Los Angeles County. The practice phone is (716) 845-2300.
- Roswell Park Cancer Institute344 S Hauser Blvd, Los Angeles, CA 90036 · Los Angeles CountyPhone(716) 845-2300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jens Hillengass is affiliated with 2 sites of care and 1 medical group
Dr. Hillengass' primary practice is Roswell Park Cancer Institute in Los Angeles, California. Dr. Hillengass is also affiliated with Roswell Park Comprehensive Cancer Center. The medical group on file is Roswell Park Comprehensive Cancer Center.
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. Jens Hillengass' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hillengass practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roswell Park Cancer Institute | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jens Hillengass is one of 415 medical oncologists in California
Medical oncology is Dr. Hillengass' primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Hillengass is licensed in New York.
Specialties and state licenses
- Medical oncology, New YorkPrimary
Medical oncologists near Dr. Hillengass
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. Jens Hillengass billed Medicare for 213 services in 2024
CMS data shows 213 Medicare services from Dr. Hillengass across 4 procedure codes in 2024, all of them office visits, for 140 Medicare patients. Medicare paid $15,482 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hillengass' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2802024: 21324%
- Surgery
- 2023: 162024: 0100%
Dr. Hillengass compared with the California median for medical oncologists, 2024
- Dr. Hillengass
- California median
- Medicare services
- 213vs 49657% below
- Medicare patients
- 140vs 1549% below
- Part D claims
- 108vs 14425% below
Medians across 358 medical oncologists in California with Dmand AI profiles that report each measure.
Dr. Hillengass' 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 Dr. Hillengass and other medical oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jens Hillengass treated 140 Medicare patients in 2024, average age 72
CMS counts 140 Medicare patients who saw Dr. Hillengass in 2024. The largest group is 65 to 74, with 74 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 14% are also on Medicaid. Their average risk score is 2.82, 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. Hillengass' median patient age at 73, with 52% women.
Dr. Hillengass' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hillengass' Medicare patients by sex, 2024
- Women6748%
- Men7352%
Chronic conditions among Dr. Hillengass' Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Chronic kidney disease46%
- Arthritis41%
- Anxiety33%
- Diabetes30%
- Ischemic heart disease30%
- Mood disorders29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hillengass' 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
- Women52%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jens Hillengass wrote 173 Medicare Part D claims in 2024
In 2024, Dr. Hillengass wrote 173 Medicare Part D claims for 57 patients. 85% of them were for generic drugs. CMS names the drug for 108 of them, across 4 drugs with 11 or more claims each, at $7,966 in total drug cost. In 2023, CMS named 44 claims across 2 drugs.
Dr. Hillengass' Part D claims by kind of drug, 2024
- Generic147 claims85%
- Brand-name26 claims15%
Dr. Hillengass' 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. Hillengass' Part D claims, 2024
- Antibiotics28%48 of 173 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: 442024: 108145%
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
Dr. Jens Hillengass offers telehealth to Medicare patients
Dr. Hillengass accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hillengass as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Jens Hillengass received $60,660 in industry payments from 2018 to 2025
CMS Open Payments shows 71 general payments to Dr. Hillengass from 16 drug and device companies from 2018 to 2025. Consulting fees make up the largest share, 76% of the total. Amgen Inc. paid the most, $15,037. It also lists 1 research payment totaling $940 in 2023.
General payments to Dr. Hillengass by program year, 2018 to 2025
General payments to Dr. Hillengass by kind, 2018 to 2025
- Consulting fees$46,21876%
- Travel and lodging$11,72319%
- Food and beverage$1,2652%
- Speaker and faculty fees$1,0002%
- Compensation for serving as faculty or as a speaker for a medical education program$4541%
Companies that paid Dr. Hillengass the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jens Hillengass graduated from University of Heidelberg Faculty of Medicine
Dr. Hillengass graduated from University of Heidelberg Faculty of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jens Hillengass'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) |
| 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. Jens Hillengass
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. Jens Hillengass' NPI number?
Dr. Jens Hillengass' NPI number is 1447748058. It was assigned on April 30, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Jens Hillengass?
Dr. Jens Hillengass is a medical oncologist in Los Angeles, California. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Jens Hillengass practice?
Dr. Hillengass practices at 344 S Hauser Blvd, Los Angeles, CA 90036. Dr. Hillengass' primary practice is Roswell Park Cancer Institute in Los Angeles, California.
What is Dr. Jens Hillengass' office phone number?
The practice phone on file for Dr. Hillengass is (716) 845-2300.
What is Dr. Jens Hillengass' medical license number?
Dr. Hillengass holds New York license 293671.
Which hospitals is Dr. Jens Hillengass affiliated with?
Dr. Hillengass is affiliated with Roswell Park Comprehensive Cancer Center.
What medical group is Dr. Jens Hillengass part of?
Dr. Hillengass is linked to Roswell Park Comprehensive Cancer Center.
Does Dr. Jens Hillengass accept Medicare?
Yes. CMS data shows Dr. Hillengass billed Medicare for 213 services in 2024, and Dr. Hillengass accepts Medicare assignment.
Does Dr. Jens Hillengass offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hillengass as offering telehealth services.
How many Medicare patients does Dr. Jens Hillengass see?
CMS counts 140 Medicare patients who saw Dr. Hillengass in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Dr. Jens Hillengass bill to Medicare?
In 2024, Dr. Hillengass' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, new patient (99204).
Where did Dr. Jens Hillengass go to medical school?
Dr. Hillengass graduated from University of Heidelberg Faculty of Medicine in 2002.
What drugs does Dr. Jens Hillengass prescribe most?
In 2024 Medicare Part D data, Dr. Hillengass' most prescribed drugs by claims were Acyclovir, Levofloxacin and Dexamethasone.
Has Dr. Jens Hillengass received payments from drug or device companies?
CMS Open Payments shows $60,660 in general payments to Dr. Hillengass from 16 companies from 2018 to 2025. The largest total came from Amgen Inc.
How long has Dr. Jens Hillengass been practicing?
Dr. Hillengass graduated from medical school in 2002, 24 years ago.
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