NPPES file of Aug 9, 2026

Lauren Marshall Lemieux

Internal Medicine Physician · Bakersfield, CA

Lauren Marshall Lemieux is an internal medicine physician with a practice address in Bakersfield, California, and NPI 1912393463, issued on Apr 11, 2015. Check the license (California A148283, 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
1912393463
Name
Lauren Marshall Lemieux
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A148283 CA
Self-reported in NPPES; status is on the state search
Practice location
4900 California Avenue, Bakersfield, CA 93309
Phone
(617) 505-1520
Enumerated
Apr 11, 2015
Record last updated
Mar 20, 2026
Fax
(617) 928-8401
Medicare enrollment
Enrolled (PECOS I20180620002233); may accept Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 2015
Telehealth
Offers telehealth (CMS)
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 4900 California Avenue

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

  1. Shelley Anderson, NPFamily Nurse Practitioner1457812299
  2. Heidi Bohlmann, APRN, FNP-BCFamily Nurse Practitioner1457388464
  3. Doris Delgado, RD/RDNRenal Nutrition Registered Dietitian1407212046
  4. Yukiko Ito, PA-CPhysician Assistant1407280209
  5. Clara Lyashevsky, DOFamily Medicine Physician1962922690
  6. Angelica Neison, MDFamily Medicine Physician1770787137

Verify Lauren Marshall Lemieux in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A148283
    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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97% fewer Medicare Part D claims than the average internal medicine physician in 2024

82 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Lauren Lemieux82
  2. Specialty average3,176

Most prescribed

  1. Ozempic20 claims
  2. Metformin Hcl Er17 claims
  3. Bupropion Xl14 claims
  4. Mounjaro11 claims
  5. Topiramate11 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.

Bills Medicare through one group practice

  1. Form Health Associates PCBakersfield, CA

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

Lauren Marshall Lemieux among 17,696 internal medicine physician records in California

Lauren Marshall Lemieux is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 76% of them.

  • NPI issued2015 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2015 · median 2004 among the 11,065 with a school on file
  • Record last updated2026 · 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 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

214 internal medicine physician records list a practice address in Bakersfield

They are 214 of the 11,539 NPPES records with a practice address in Bakersfield, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Carlos Alvarez, MDBakersfield, CA 933091891805610
  2. Kusum Desai, MDBakersfield, CA 933091962444570
  3. Russell Enoch, D.O.Bakersfield, CA 933091811009525
  4. Thin Han, M.D.Bakersfield, CA 933091356319826
  5. Joseph Hayes, D.O.Bakersfield, CA 933091083681498
  6. Rusong Huang, MDBakersfield, CA 933091598767949
  7. Ju Hwan Lee, MDBakersfield, CA 933091619969847
  8. Mark Lin, MDBakersfield, CA 933091528050754

Common questions

What is Lauren Marshall Lemieux's NPI number?

Lauren Marshall Lemieux's National Provider Identifier (NPI) is 1912393463, issued on Apr 11, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Lauren Marshall Lemieux located?

The NPPES record lists a practice address at 4900 California Avenue, Bakersfield, CA, 93309. Phone: (617) 505-1520. Providers update this record themselves, so call before visiting.

How can I verify Lauren Marshall Lemieux's license?

NPPES lists California license number A148283, 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 Lauren Marshall Lemieux prescribe under Medicare Part D?

In 2024, Lauren Marshall Lemieux had 82 Medicare Part D claims for 17 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.