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Dr. Lance Sieger, MD
NPI1134130248
- Publications
- 14
- Industry payments
- $10,578
- Insurance carriers
- 6
- State licenses
- 2
- Year NPI issued
- 2006
- Practice address
- 21840 Normandie Ave, Torrance, CA 90502-2047
- Practice phone
- Call (310) 222-4154
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Sieger'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. Lance Sieger is a pediatric hematology and oncology physician in Torrance, California
Dr. Sieger practices in Torrance, California.
Dr. Sieger's NPI, 1134130248, was assigned on August 11, 2006. Dr. Sieger graduated from University of Pittsburgh School of Medicine in 1969. Dr. Sieger holds California license G20454.
NPI and contact details
- NPI
- 1134130248NPI Registry (opens in a new tab)
- NPI enumeration date
- August 11, 2006
- NPI status
- Active
- Practice phone
- (310) 222-4154
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1969
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Lance Sieger's practice address is in Torrance, California
Dr. Sieger's practice address in the NPI Registry is 21840 Normandie Ave, Torrance, CA 90502-2047. The practice phone is (310) 222-4154.
- NPI Registry address21840 Normandie Ave, Torrance, CA 90502-2047Phone(310) 222-4154
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Lance Sieger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sieger practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Sieger's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lance Sieger is one of 385 pediatric hematologys and oncology physicians in California
Pediatric hematology-oncology is Dr. Sieger's primary specialty in the NPI Registry, under taxonomy code 2080P0207X. Dr. Sieger is board certified in nuclear medicine by the American Board of Nuclear Medicine. Dmand AI has Dr. Sieger's licenses on file in 2 states: California and West Virginia.
Specialties and state licenses
- Pediatric hematology and oncology, CaliforniaPrimary
- West Virginia license
Pediatric hematologys and oncology physicians near Dr. Sieger
Counts of pediatric hematologys and oncology physicians with a Dmand AI profile, by place and practice. Each opens the list.
385pediatric hematologys and oncology physicians in California
3pediatric hematologys and oncology physicians in Torrance
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Lance Sieger's patients have a median age of 10
Across all payers, Dmand AI patient panel data puts Dr. Sieger's median patient age at 10, with 0% women.
Dr. Sieger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Lance Sieger has 14 publications on record
Dmand AI links 14 papers to Dr. Sieger in 2018. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols, Infant, Premature, Diseases and Leukemia, Lymphoid. Dr. Sieger has published most often in J Pediatr. Dr. Sieger's most frequent co-authors are Louis M. Aledort, MD, Morris Asch, MD and Richard G. Gorlick, MD.
Papers14
Topics Dr. Sieger writes about most
- Antineoplastic Combined Chemotherapy Protocols
- Infant, Premature, Diseases
- Leukemia, Lymphoid
- Thrombocytopenia
Dr. Sieger's most frequent co-authors
- Louis M. Aledort, MD1 shared paper
- Morris Asch, MD1 shared paper
- Richard G. Gorlick, MD1 shared paper
Recent publications by Dr. Sieger
AzacitidineBone Marrow ExaminationChlorpromazine
See who Dr. Sieger researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sieger works with, so you can find a warm path to the right pediatric hematologys and oncology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lance Sieger received $10,578 in industry payments from 2016 to 2024
CMS Open Payments shows 63 general payments to Dr. Sieger from 22 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 29% of the total. Genentech, Inc. paid the most, $4,460.
General payments to Dr. Sieger by program year, 2016 to 2024
General payments to Dr. Sieger by kind, 2016 to 2024
$10.6Kin total
- Consulting fees$3,10029%
- Food and beverage$2,61525%
- Honoraria$2,50024%
- Travel and lodging$2,36322%
Companies that paid Dr. Sieger the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lance Sieger graduated from University of Pittsburgh School of Medicine
Dr. Sieger graduated from University of Pittsburgh School of Medicine in 1969.
- Medical school
- Board certified in nuclear medicine
- Board certified in pediatric hematology-oncology
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Lance Sieger accepts plans from 6 insurance carriers
Dr. Sieger is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- LA Care
- Regence Health Plans
Plan types Dr. Sieger accepts, by number of carriers
- Medicare5
- PPO5
- HMO2
- EPO1
- Medicaid1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Lance Sieger'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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Lance Sieger
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. Lance Sieger's NPI number?
Dr. Lance Sieger's NPI number is 1134130248. It was assigned on August 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lance Sieger?
Dr. Lance Sieger is a pediatric hematology and oncology physician in Torrance, California. The primary specialty in the NPI Registry is Pediatric Hematology & Oncology Physician (taxonomy code 2080P0207X).
Where does Dr. Lance Sieger practice?
Dr. Sieger practices at 21840 Normandie Ave, Torrance, CA 90502-2047.
What is Dr. Lance Sieger's office phone number?
The practice phone on file for Dr. Sieger is (310) 222-4154.
What is Dr. Lance Sieger's medical license number?
Dr. Sieger holds California license G20454, one of the licenses on file in 2 states.
Which states has Dr. Lance Sieger been licensed in?
Dmand AI has state licenses on file for Dr. Sieger in California (1971 to 2026) and West Virginia (2013).
Is Dr. Lance Sieger board certified?
Yes. Dr. Sieger is board certified in nuclear medicine by the American Board of Nuclear Medicine.
Where did Dr. Lance Sieger go to medical school?
Dr. Sieger graduated from University of Pittsburgh School of Medicine in 1969.
Has Dr. Lance Sieger received payments from drug or device companies?
CMS Open Payments shows $10,578 in general payments to Dr. Sieger from 22 companies from 2016 to 2024. The largest total came from Genentech, Inc.
How long has Dr. Lance Sieger been practicing?
Dr. Sieger graduated from medical school in 1969, 57 years ago.
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Does Dr. Lance Sieger do research?
Dmand AI links 14 publications to Dr. Sieger.
Who does Dr. Lance Sieger publish with?
Dr. Sieger's most frequent co-authors are Louis M. Aledort, MD (1 shared paper), Morris Asch, MD (1 shared paper) and Richard G. Gorlick, MD (1 shared paper).
What insurance does Dr. Lance Sieger accept?
Dr. Sieger is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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