NPPES file of Aug 9, 2026

Lauren E. Sobel, DO, MPH

Obstetrics & Gynecology Physician · Walnut Creek, CA

Lauren E. Sobel, DO, MPH is an obstetrics & gynecology physician with a practice address in Walnut Creek, California, and NPI 1184087199, issued on Mar 29, 2016. Check the license 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
1184087199
Name
Lauren E. Sobel
Credential
DO, MPH
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
268696 MA
Self-reported in NPPES; status is on the state search
Practice location
1425 S Main St, Walnut Creek, CA 94596
Phone
(925) 295-4070
Enumerated
Mar 29, 2016
Record last updated
Nov 2, 2022
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 1425 S Main St

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

  1. Eric AaserudeEmergency Medicine Physician1811491194
  2. Derek Abbassi, MDObstetrics & Gynecology Physician1841364155
  3. Peter Ackerman, MDEmergency Medicine Physician1427435023
  4. Aaron Mark Acosta, DOEmergency Medicine Physician1538789987
  5. Basil Adad, MDOtolaryngology Physician1487732574
  6. Derek Ailes, M.D.Emergency Medical Services (Emergency Medicine) Physician1992001804

Verify Lauren E. Sobel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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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46% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

89 Medicare Part D claims for 46 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Lauren Sobel89
  2. Specialty average165

Most prescribed

  1. Estradiol25 claims
  2. Yuvafem18 claims
  3. Estring14 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.

Lauren E. Sobel among 5,088 obstetrics & gynecology physician records in California

Lauren E. Sobel, DO, MPH 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 2016, is newer than 85% of them.

  • NPI issued2016 · 85% of these records are older, 13% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2022 · 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).

56 obstetrics & gynecology physician records list a practice address in Walnut Creek

They are 56 of the 6,170 NPPES records with a practice address in Walnut Creek, and 5,088 obstetrics & gynecology physician records in California.

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

  1. Derek Abbassi, MDWalnut Creek, CA 945961841364155
  2. Mehrnoosh Almassi, MDWalnut Creek, CA 945961679622872
  3. Phuong-Anh Bui, MDWalnut Creek, CA 945961396817102
  4. Elaine Carlitz, MDWalnut Creek, CA 945961902984065
  5. Donna Di Cenzo, MDWalnut Creek, CA 945961710039524
  6. Jean Kayser, MDWalnut Creek, CA 945961659459741
  7. Serena LinWalnut Creek, CA 945961366650889
  8. Sara Mark, MDWalnut Creek, CA 945961417035924

Common questions

What is Lauren E. Sobel, DO, MPH's NPI number?

Lauren E. Sobel, DO, MPH's National Provider Identifier (NPI) is 1184087199, issued on Mar 29, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Lauren E. Sobel, DO, MPH located?

The NPPES record lists a practice address at 1425 S Main St, Walnut Creek, CA, 94596. Phone: (925) 295-4070. Providers update this record themselves, so call before visiting.

How can I verify Lauren E. Sobel, DO, MPH's license?

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 Lauren E. Sobel, DO, MPH prescribe under Medicare Part D?

In 2024, Lauren E. Sobel, DO, MPH had 89 Medicare Part D claims for 46 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.