NPPES file of Aug 9, 2026

Steven Howard Rosenberg, M.D.

Obstetrics & Gynecology Physician · Torrance, CA

Steven Howard Rosenberg, M.D. is an obstetrics & gynecology physician with a practice address in Torrance, California, and NPI 1396767828, issued on Jul 24, 2006. Check the license (California G37233, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396767828
Name
Steven Howard Rosenberg
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G37233 CA
Self-reported in NPPES; status is on the state search
Practice location
3400 Lomita Blvd, Torrance, CA 90505
Phone
(310) 539-4957
Enumerated
Jul 24, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(310) 593-9175
Medicare enrollment
Enrolled (PECOS I20110506000257); accepts Medicare assignment
Medical or professional school
Boston University School Of Medicine, 1977
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3400 Lomita Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sushila Agrawal, MDFamily Medicine Physician1396841250
  2. William Averill, M.D.Cardiovascular Disease Physician1225013550
  3. Alexandra Bujor, M.D.Obstetrics & Gynecology Physician1316955206
  4. Shirley ChengDentist1043427131
  5. Bernadette Dunlap, DDSDentist1245443290
  6. Elaine Gutierrez, M.D.Pediatrics Physician1083624076

Verify Steven Howard Rosenberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G37233
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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61% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024

265 Medicare Part D claims for 54 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Steven Rosenberg265
  2. Specialty average165

Most prescribed

  1. Progesterone27 claims
  2. Estradiol25 claims
  3. Mounjaro12 claims
  4. Nystatin-Triamcinolone11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $14,682.42

3 payments; by number, the most common kind was food and beverage; the largest payer was Human Regenerative Technologies. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Steven Rosenberg$14,682
  2. Specialty average$1,031

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

  1. Tmogi IncTorrance, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Steven Howard Rosenberg among 5,088 obstetrics & gynecology physician records in California

Steven Howard Rosenberg, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1977 · median 2004 among the 2,700 with a school on file
  • Record last updated2007 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Latrice Allen, M.D.Torrance, CA 905051639118359
  2. Jody Aronson, M.D.Torrance, CA 905051205924180
  3. Sharda Bhasin, M.D.Torrance, CA 905051871517763
  4. Alexandra Bujor, M.D.Torrance, CA 905051316955206
  5. Albert Chen, M.D.Torrance, CA 905051528079076
  6. Kay Elledge, MDTorrance, CA 905051023055928
  7. Karen Filkins, M.D.Torrance, CA 905051659322469
  8. Kenneth Holliman, M.D.Torrance, CA 905051861445645

Common questions

What is Steven Howard Rosenberg, M.D.'s NPI number?

Steven Howard Rosenberg, M.D.'s National Provider Identifier (NPI) is 1396767828, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Steven Howard Rosenberg, M.D. located?

The NPPES record lists a practice address at 3400 Lomita Blvd, Torrance, CA, 90505. Phone: (310) 539-4957. Providers update this record themselves, so call before visiting.

How can I verify Steven Howard Rosenberg, M.D.'s license?

NPPES lists California license number G37233, 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.

How much does Steven Howard Rosenberg, M.D. prescribe under Medicare Part D?

In 2024, Steven Howard Rosenberg, M.D. had 265 Medicare Part D claims for 54 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

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.