Steven Jay Underberger, M.D.
Anesthesiology Physician · Torrance, CA
Steven Jay Underberger, M.D. is an anesthesiology physician with a practice address in Torrance, California, and NPI 1053334714, issued on Jul 25, 2006. Check the license (California G70225, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven Jay Underberger
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- G70225 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3330 Lomita Blvd, Torrance, CA 90505
- Phone
- (310) 325-9110
- Enumerated
- Jul 25, 2006
- Record last updated
- Apr 18, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (310) 784-8762
- Medicaid ID
- 00G702250 CA
- Medicare enrollment
- Enrolled (PECOS I20040607001581); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 3330 Lomita Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Steven Jay Underberger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G70225Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $45.02
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Torrance Anesthesia Medical Group Inc.Torrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven Jay Underberger among 7,571 anesthesiology physician records in California
Steven Jay Underberger, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1989 · median 2006 among the 4,868 with a school on file
- Record last updated2014 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
136 anesthesiology physician records list a practice address in Torrance
They are 136 of the 8,901 NPPES records with a practice address in Torrance, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Torrance → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Ruth Ackermann, M.D.Torrance, CA 905051336175082
- Drew Cheng, M.D.Torrance, CA 905051306802541
- James Conner, M.D.Torrance, CA 905051336191014
- Joseph Farlo, M.DTorrance, CA 905051386663540
- Kianusch Kiai, MDTorrance, CA 905051942241740
- Deborah Lynn, M.D.Torrance, CA 905051194776849
- Michael Mehmedbasich, M.D.Torrance, CA 905051538199195
- Jeanette Oka, M.D.Torrance, CA 905051013936194
Common questions
What is Steven Jay Underberger, M.D.'s NPI number?
Steven Jay Underberger, M.D.'s National Provider Identifier (NPI) is 1053334714, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven Jay Underberger, M.D. located?
The NPPES record lists a practice address at 3330 Lomita Blvd, Torrance, CA, 90505. Phone: (310) 325-9110. Providers update this record themselves, so call before visiting.
How can I verify Steven Jay Underberger, M.D.'s license?
NPPES lists California license number G70225, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.