NPPES file of Aug 9, 2026

Lauren Nathan, MD

Obstetrics & Gynecology Physician · Los Angeles, CA

Lauren Nathan, MD is an obstetrics & gynecology physician with a practice address in Los Angeles, California, and NPI 1235164039, issued on Jul 11, 2006. Check the license (California A48972, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235164039
Name
Lauren Nathan
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A48972 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Medical Plaza, Los Angeles, CA 90095
Phone
(310) 794-7274
Enumerated
Jul 11, 2006
Record last updated
Apr 19, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicaid ID
00A89720 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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Also registered at 200 Medical Plaza

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

  1. Anita Agzarian, MDInternal Medicine Physician1144254590
  2. Sheila Ahmadi, MDEndocrinology, Diabetes & Metabolism Physician1194800094
  3. Marine Altunyan, PHARMDAmbulatory Care Pharmacist1578300083
  4. Gayane Ambartsumyan, MDObstetrics & Gynecology Physician1174556849
  5. Parviz Amid, M.D.Surgery Physician1073633459
  6. Adrienne Bawa, REGISTERED NURSECase Management Registered Nurse1497355366

Verify Lauren Nathan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A48972
    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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30% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

115 Medicare Part D claims for 34 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Lauren Nathan115
  2. Specialty average165

Most prescribed

  1. Estradiol27 claims
  2. Yuvafem21 claims
  3. Progesterone16 claims
  4. Estradiol (Twice Weekly)13 claims
  5. Clobetasol Propionate12 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 77.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.5
  2. Costout of 100 · 30%39.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Lauren Nathan among 5,088 obstetrics & gynecology physician records in California

Lauren Nathan, MD 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 fileNo · 53% of these records are
  • Record last updated2010 · 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. Gayane Ambartsumyan, MDLos Angeles, CA 900951174556849
  2. Tamara Grisales, M.D.Los Angeles, CA 900951063611762
  3. Andy Huang, M.D.Los Angeles, CA 900951134244924
  4. Michael Johnson, MDLos Angeles, CA 900951619048659
  5. Cheri Lowre, MDLos Angeles, CA 900951215967948
  6. Michael Lu, MDLos Angeles, CA 900951316972219
  7. Lisa Nicholas, MDLos Angeles, CA 900951750380648
  8. Kristine Penner Klein, MDLos Angeles, CA 900951346454501

Common questions

What is Lauren Nathan, MD's NPI number?

Lauren Nathan, MD's National Provider Identifier (NPI) is 1235164039, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lauren Nathan, MD located?

The NPPES record lists a practice address at 200 Medical Plaza, Los Angeles, CA, 90095. Phone: (310) 794-7274. Providers update this record themselves, so call before visiting.

How can I verify Lauren Nathan, MD's license?

NPPES lists California license number A48972, 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 Nathan, MD prescribe under Medicare Part D?

In 2024, Lauren Nathan, MD had 115 Medicare Part D claims for 34 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Lauren Nathan, MD's MIPS final score?

The 2023 MIPS final score is 77.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.