Dr. Lionel S. Foster Jr., MD
- Medicare services, 2024
- 390
- Medicare patients, 2024
- 151
- Part D claims, 2024
- 905
- Hospital affiliations
- 5
- Industry payments
- $3,202
- Practice address
- 2767 Olive Highway, Oroville, CA 95966
- Practice phone
- Call (530) 533-8500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Foster'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. Lionel S. Foster Jr. is a urologist in Oroville, California
Dr. Foster practices at Oroville Hospital in Oroville, California, part of Oro Hospital.
Dr. Foster's NPI, 1104833375, was assigned on August 1, 2006. Dr. Foster graduated from University of California, San Francisco School of Medicine in 1985. Dr. Foster holds California license G60284.
- NPI
- 1104833375NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355302456
- NPI enumeration date
- August 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 533-8500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lionel S. Foster Jr. practices at Oroville Hospital in Oroville, California
Dr. Foster's primary practice is Oroville Hospital, at 2767 Olive Highway, Oroville, CA 95966 in Butte County. The practice phone is (530) 533-8500.
- Oroville Hospital2767 Olive Highway, Oroville, CA 95966 · Butte CountyPhone(530) 533-8500
Source: Dmand AI Affiliation Data
Dr. Lionel S. Foster Jr. is affiliated with 6 sites of care and 2 medical groups
Dr. Foster's primary practice is Oroville Hospital in Oroville, California, part of Oro Hospital. Dr. Foster is also affiliated with Enloe Health. The medical group on file is Oro Health Professional. Dmand AI also links Dr. Foster to 3 more hospitals, 1 physician office 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 Dr. Lionel S. Foster Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Foster practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oroville Hospital | Available with a free account |
| +5 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 Oro Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Lionel S. Foster Jr. is one of 1,395 urologists in California
Urology is Dr. Foster's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Foster is licensed in California.
Specialties and state licenses
- Urology, CaliforniaPrimary
Urologists near Dr. Foster
Counts of urologists 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. Lionel S. Foster Jr. billed Medicare for 390 services in 2024
CMS data shows 390 Medicare services from Dr. Foster across 3 procedure codes in 2024, for 151 Medicare patients. Medicare paid $18,555 for them.
Dr. Foster's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5642024: 37733%
- Surgery
- 2023: 1432024: 1391%
Where Dr. Foster's Medicare services took place, 2024
- In an office37797%
- In a facility133%
Dr. Foster compared with the California median for urologists, 2024
- Dr. Foster
- California median
- Medicare services
- 390vs 1,05063% below
- Medicare patients
- 151vs 34656% below
- Part D claims
- 809vs 64226% above
Medians across 1,310 urologists in California with Dmand AI profiles that report each measure.
Dr. Foster'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. Foster?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Foster and other urologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lionel S. Foster Jr. treated 151 Medicare patients in 2024, average age 72
CMS counts 151 Medicare patients who saw Dr. Foster in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 44% are also on Medicaid. Their average risk score is 1.37, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Foster's median patient age at 71, with 23% women.
Dr. Foster's Medicare patients by age, 2024
Dr. Foster's Medicare patients by sex, 2024
- Women3121%
- Men12079%
Chronic conditions among Dr. Foster's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer39%
- Diabetes39%
- Arthritis36%
- Ischemic heart disease30%
- Chronic kidney disease28%
- Anxiety19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Foster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women23%
- Men76%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lionel S. Foster Jr. wrote 905 Medicare Part D claims in 2024
In 2024, Dr. Foster wrote 905 Medicare Part D claims for 180 patients. 92% of them were for generic drugs. CMS names the drug for 809 of them, across 16 drugs with 11 or more claims each, at $54,638 in total drug cost. In 2023, CMS named 1,151 claims across 19 drugs.
Dr. Foster's Part D claims by kind of drug, 2024
- Generic834 claims92%
- Brand-name and other71 claims8%
Dr. Foster'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. Foster's Part D claims, 2024
- Opioids15%136 of 905 claims
- Antibiotics22%202 of 905 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: 1,1512024: 80930%
Drugs named by CMS: 16 in 2024, 19 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
How Dr. Lionel S. Foster Jr. takes part in Medicare
Dr. Foster accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Prostate resection: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lionel S. Foster Jr. received $3,202 in industry payments from 2016 to 2025
CMS Open Payments shows 14 general payments to Dr. Foster from 10 drug and device companies from 2016 to 2025. Education make up the largest share, 95% of the total. Intuitive Surgical, Inc. paid the most, $3,000.
General payments to Dr. Foster by program year, 2016 to 2025
General payments to Dr. Foster by kind, 2016 to 2025
- Education$3,05695%
- Food and beverage$1455%
Companies that paid Dr. Foster 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. Lionel S. Foster Jr. graduated from University of California, San Francisco School of Medicine
Dr. Foster graduated from University of California, San Francisco School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lionel S. Foster Jr.'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)Doctors and Clinicians Utilization Data (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. Lionel S. Foster Jr.
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. Lionel S. Foster Jr.'s NPI number?
Dr. Lionel S. Foster Jr.'s NPI number is 1104833375. It was assigned on August 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lionel S. Foster Jr.?
Dr. Lionel S. Foster Jr. is a urologist in Oroville, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Lionel S. Foster Jr. practice?
Dr. Foster practices at 2767 Olive Highway, Oroville, CA 95966. Dr. Foster's primary practice is Oroville Hospital in Oroville, California, part of Oro Hospital. Dmand AI also links Dr. Foster to 3 hospitals, 1 physician office and 1 medical group.
What is Dr. Lionel S. Foster Jr.'s office phone number?
The practice phone on file for Dr. Foster is (530) 533-8500.
What is Dr. Lionel S. Foster Jr.'s medical license number?
Dr. Foster holds California license G60284.
Which hospitals is Dr. Lionel S. Foster Jr. affiliated with?
Dr. Foster practices at Oroville Hospital in Oroville, California. Dr. Foster is also affiliated with Enloe Health. Dmand AI links Dr. Foster to 3 more hospitals.
What medical group is Dr. Lionel S. Foster Jr. part of?
Dr. Foster is linked to Oro Health Professional. Dmand AI links Dr. Foster to 1 more medical group.
Does Dr. Lionel S. Foster Jr. accept Medicare?
Yes. CMS data shows Dr. Foster billed Medicare for 390 services in 2024, and Dr. Foster accepts Medicare assignment.
How many Medicare patients does Dr. Lionel S. Foster Jr. see?
CMS counts 151 Medicare patients who saw Dr. Foster in 2024, with an average age of 72.
What services does Dr. Lionel S. Foster Jr. bill to Medicare?
In 2024, Dr. Foster's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and surgery: urinary system (52000).
Show 4 more questionsShow fewer questions
Where did Dr. Lionel S. Foster Jr. go to medical school?
Dr. Foster graduated from University of California, San Francisco School of Medicine in 1985.
What drugs does Dr. Lionel S. Foster Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Foster's most prescribed drugs by claims were Tamsulosin HCl, Hydrocodone-Acetaminophen and Imipramine HCl.
Has Dr. Lionel S. Foster Jr. received payments from drug or device companies?
CMS Open Payments shows $3,202 in general payments to Dr. Foster from 10 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Lionel S. Foster Jr. been practicing?
Dr. Foster graduated from medical school in 1985, 41 years ago.
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