NPPES file of Aug 9, 2026

Julia Sladek, M.D.

Endocrinology, Diabetes & Metabolism Physician · Beverly Hills, CA

Julia Sladek, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Beverly Hills, California, and NPI 1043384084, issued on Nov 20, 2006. Check the license (California A41144, 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
1043384084
Name
Julia Sladek
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
A41144 CA
Self-reported in NPPES; status is on the state search
Practice location
8920 Wilshire Blvd # 326, Beverly Hills, CA 90211
Phone
(310) 657-1780
Enumerated
Nov 20, 2006
Record last updated
Jun 26, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(310) 652-2269
Medicaid ID
00A411440 CA
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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Verify Julia Sladek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A41144
    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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100% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

11 Medicare Part D claims, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.

  1. Julia Sladek11
  2. Specialty average2,630

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.

Julia Sladek among 1,131 endocrinology, diabetes & metabolism physician records in California

Julia Sladek, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% 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, 54% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2008 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in California

There are 1,131 endocrinology, diabetes & metabolism physician records in California.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. David Aftergood, MDBeverly Hills, CA 902111639259328
  2. Dina Block, M.D.Beverly Hills, CA 902111497996318
  3. Pejman Cohan, M.D.Beverly Hills, CA 902111225064884
  4. Sanaa Deshmukh, MDBeverly Hills, CA 902111396057147
  5. Oona Khan, M.D.Beverly Hills, CA 902111023020286
  6. Natasha Malkani, MDBeverly Hills, CA 902111366963472
  7. Stewart Middler, M.D.Beverly Hills, CA 902111053323105
  8. Lisa Moore, M.D.Beverly Hills, CA 902111386801710

Common questions

What is Julia Sladek, M.D.'s NPI number?

Julia Sladek, M.D.'s National Provider Identifier (NPI) is 1043384084, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Julia Sladek, M.D. located?

The NPPES record lists a practice address at 8920 Wilshire Blvd # 326, Beverly Hills, CA, 90211. Phone: (310) 657-1780. Providers update this record themselves, so call before visiting.

How can I verify Julia Sladek, M.D.'s license?

NPPES lists California license number A41144, 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 Julia Sladek, M.D. prescribe under Medicare Part D?

In 2024, Julia Sladek, M.D. had 11 Medicare Part D claims; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.