NPPES file of Aug 9, 2026

Jeffrey Mark Steinberg, M.D.

Reproductive Endocrinology Physician · Encino, CA

Jeffrey Mark Steinberg, M.D. is a reproductive endocrinology physician with a practice address in Encino, California, and NPI 1760564629, issued on Oct 20, 2006. Check the license (California A35247, 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
1760564629
Name
Jeffrey Mark Steinberg
Credential
M.D.
Primary taxonomy
Reproductive Endocrinology Physician 207VE0102X
License numbers
A35247 CA
6868 NV
243900 NY
Self-reported in NPPES; status is on the state search
Practice location
16030 Ventura Blvd, Encino, CA 91436
Phone
(818) 728-4600
Enumerated
Oct 20, 2006
Record last updated
Jul 23, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(818) 728-4616
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 16030 Ventura Blvd

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

  1. Isaac Adatto, M.D.Internal Medicine Physician1437263845
  2. Samuel Auerbach, MDObstetrics & Gynecology Physician1548329972
  3. Andrea Carbaugh, AU.D.Audiologist1730134149
  4. Marie Feldman, R.D.Registered Dietitian1114032547
  5. Michael Hollander, M.D.Specialist1194818021
  6. Thomas Hopkins, PHD MDOrthopaedic Surgery Physician1356414353

Verify Jeffrey Mark Steinberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A35247
    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

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24% fewer Medicare Part D claims than the average reproductive endocrinology physician in 2024

62 Medicare Part D claims, against an average of 82 among the 302 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.

  1. Jeffrey Steinberg62
  2. Specialty average82

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.

Jeffrey Mark Steinberg among 267 reproductive endocrinology physician records in California

Jeffrey Mark Steinberg, M.D. is one of 267 reproductive endocrinology physician records with a practice address in California. 70% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 59% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 10% of these records are
  • Record last updated2014 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VE0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Reproductive Endocrinology Physician providers in California

There are 267 reproductive endocrinology physician records in California.

The 8 reproductive endocrinology physician records with the nearest ZIP codes

  1. Roy Handelsman, MDEncino, CA 914361275028961
  2. Ashim Kumar, M.D.Encino, CA 914361225052459
  3. John Kuo, M.D., PH.D.Encino, CA 914361962591990
  4. Tina Koopersmith, M.D.Sherman Oaks, CA 914231629162136
  5. Melanie Landay, MDSherman Oaks, CA 914231811148760
  6. Robert Boostanfar, M.D.Westlake Village, CA 913611336119353
  7. Michael Feinman, M.D.Westlake Village, CA 913611508836164
  8. Gary Hubert, MDThousand Oaks, CA 913611386668507

Common questions

What is Jeffrey Mark Steinberg, M.D.'s NPI number?

Jeffrey Mark Steinberg, M.D.'s National Provider Identifier (NPI) is 1760564629, issued on Oct 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jeffrey Mark Steinberg, M.D. located?

The NPPES record lists a practice address at 16030 Ventura Blvd, Encino, CA, 91436. Phone: (818) 728-4600. Providers update this record themselves, so call before visiting.

How can I verify Jeffrey Mark Steinberg, M.D.'s license?

NPPES lists California license number A35247, 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 Jeffrey Mark Steinberg, M.D. prescribe under Medicare Part D?

In 2024, Jeffrey Mark Steinberg, M.D. had 62 Medicare Part D claims; the average among reproductive endocrinology physician prescribers was 82. 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.