Leonard Dalag
- Medicare services, 2024
- 447
- Medicare patients, 2024
- 251
- Publications
- 6
- Hospital affiliations
- 5
- Industry payments
- $6,307
- Practice address
- 751 South Bascom Avenue, San Jose, CA 95128
- Practice phone
- Call (408) 885-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Leonard Dalag'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.
Leonard Dalag is an interventional radiologist in San Jose, California
Leonard Dalag practices at Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA.
Leonard Dalag's NPI, 1689043291, was assigned on September 24, 2015. Leonard Dalag holds California license A171850.
- NPI
- 1689043291NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547552663
- NPI enumeration date
- September 24, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 885-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Leonard Dalag practices at Santa Clara Valley Medical Center in San Jose, California
Leonard Dalag's primary practice is Santa Clara Valley Medical Center, at 751 South Bascom Avenue, San Jose, CA 95128 in Santa Clara County. The practice phone is (408) 885-5000.
- Santa Clara Valley Medical Center751 South Bascom Avenue, San Jose, CA 95128 · Santa Clara CountyPhone(408) 885-5000
Source: Dmand AI Affiliation Data
Leonard Dalag is affiliated with 8 sites of care and 4 medical groups
Leonard Dalag's primary practice is Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA. Leonard Dalag is also affiliated with Adventist Health Bakersfield. The medical group on file is County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic. Dmand AI also links Leonard Dalag to 3 more hospitals, 3 medical groups, 2 group practices and clinics and 1 community health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Leonard Dalag's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Leonard Dalag practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Clara Valley Medical Center | Available with a free account |
| +7 more sites and 3 medical groups | 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 County of Santa Clara, CA and 6.2K+ hospitals, with verified contacts in the same login.
Leonard Dalag is one of 559 interventional radiologists in California
Vascular and interventional radiology is Leonard Dalag's primary specialty in the NPI Registry, under taxonomy code 2085R0204X. Dmand AI has Leonard Dalag's licenses on file in 2 states: California and Illinois.
Specialties and state licenses
- Vascular and interventional radiology, CaliforniaPrimary
- Diagnostic radiology, Illinois
Interventional radiologists near Leonard Dalag
Counts of interventional radiologists 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
Leonard Dalag billed Medicare for 447 services in 2024
CMS data shows 447 Medicare services from Leonard Dalag across 10 procedure codes in 2024, for 251 Medicare patients. Medicare paid $23,389 for them. Every service was in a facility, such as a hospital, rather than an office.
Leonard Dalag's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1782024: 1907%
- Surgery
- 2023: 1142024: 13821%
- Imaging
- 2023: 1182024: 1191%
Leonard Dalag compared with the California median for interventional radiologists, 2024
- Leonard Dalag
- California median
- Medicare services
- 447vs 83847% below
- Medicare patients
- 251vs 43442% below
Medians across 511 interventional radiologists in California with Dmand AI profiles that report each measure.
Leonard Dalag'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 Leonard Dalag and other interventional radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Leonard Dalag treated 251 Medicare patients in 2024, average age 69
CMS counts 251 Medicare patients who saw Leonard Dalag in 2024. The largest group is 65 to 74, with 102 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 57% are also on Medicaid. Their average risk score is 3.99, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Leonard Dalag's median patient age at 48, with 58% women.
Leonard Dalag's Medicare patients by age, 2024
Leonard Dalag's Medicare patients by sex, 2024
- Women10140%
- Men15060%
Chronic conditions among Leonard Dalag's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Chronic kidney disease65%
- Arthritis56%
- Diabetes55%
- Ischemic heart disease52%
- Cancer36%
- Atrial fibrillation35%
Share of Medicare patients with each condition. A patient can have several.
Leonard Dalag's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Leonard Dalag takes part in Medicare
Leonard Dalag accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Leonard Dalag has 6 publications on record
Dmand AI links 6 papers to Leonard Dalag, published from 2015 to 2021. 2015 was the busiest year, with 2. Leonard Dalag's most frequent co-authors are Swar Hemant Shah, MD, Gregory A. Christoforidis, MD and Jonathan M. Lorenz.
Leonard Dalag's papers by year, 2015 to 2021
Leonard Dalag's most frequent co-authors
- Swar Hemant Shah, MD2 shared papers
- Gregory A. Christoforidis, MD1 shared paper
- Jonathan M. Lorenz1 shared paper
Recent publications by Leonard Dalag
Semin Intervent Radiol
See who Leonard Dalag researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Leonard Dalag works with, so you can find a warm path to the right interventional radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Leonard Dalag received $6,307 in industry payments from 2016 to 2025
CMS Open Payments shows 64 general payments to Leonard Dalag from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 63% of the total. Penumbra, Inc. paid the most, $2,883.
General payments to Leonard Dalag by program year, 2016 to 2025
General payments to Leonard Dalag by kind, 2016 to 2025
- Food and beverage$3,97463%
- Travel and lodging$2,33337%
Companies that paid Leonard Dalag the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Leonard Dalag'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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) |
| 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 Leonard Dalag
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Leonard Dalag's NPI number?
Leonard Dalag's NPI number is 1689043291. It was assigned on September 24, 2015, and it is active in the NPI Registry.
What does Leonard Dalag specialize in?
Leonard Dalag is an interventional radiologist in San Jose, California. The primary specialty in the NPI Registry is Vascular & Interventional Radiology Physician (taxonomy code 2085R0204X).
Where does Leonard Dalag practice?
Leonard Dalag practices at 751 South Bascom Avenue, San Jose, CA 95128. Leonard Dalag's primary practice is Santa Clara Valley Medical Center in San Jose, California, part of County of Santa Clara, CA. Dmand AI also links Leonard Dalag to 3 hospitals, 3 medical groups, 2 group practices and clinics and 1 community health center.
What is Leonard Dalag's office phone number?
The practice phone on file for Leonard Dalag is (408) 885-5000.
What is Leonard Dalag's medical license number?
Leonard Dalag holds California license A171850, one of the licenses on file in 2 states.
Which states has Leonard Dalag been licensed in?
Dmand AI has state licenses on file for Leonard Dalag in California and Illinois.
Which hospitals is Leonard Dalag affiliated with?
Leonard Dalag practices at Santa Clara Valley Medical Center in San Jose, California. Leonard Dalag is also affiliated with Adventist Health Bakersfield. Dmand AI links Leonard Dalag to 3 more hospitals.
What medical group is Leonard Dalag part of?
Leonard Dalag is linked to County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic. Dmand AI links Leonard Dalag to 3 more medical groups.
Does Leonard Dalag accept Medicare?
Yes. CMS data shows Leonard Dalag billed Medicare for 447 services in 2024, and Leonard Dalag accepts Medicare assignment.
How many Medicare patients does Leonard Dalag see?
CMS counts 251 Medicare patients who saw Leonard Dalag in 2024, with an average age of 69.
Show 5 more questionsShow fewer questions
What services does Leonard Dalag bill to Medicare?
In 2024, Leonard Dalag's most billed Medicare services were special service (99152), ultrasound (76937) and radiation oncology (77001).
Has Leonard Dalag received payments from drug or device companies?
CMS Open Payments shows $6,307 in general payments to Leonard Dalag from 13 companies from 2016 to 2025. The largest total came from Penumbra, Inc.
How long has Leonard Dalag been practicing?
Leonard Dalag graduated from medical school in 2015, 11 years ago.
Does Leonard Dalag do research?
Dmand AI links 6 publications to Leonard Dalag, published from 2015 to 2021.
Who does Leonard Dalag publish with?
Leonard Dalag's most frequent co-authors are Swar Hemant Shah, MD (2 shared papers), Gregory A. Christoforidis, MD (1 shared paper) and Jonathan M. Lorenz (1 shared paper).
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