Leena Shankar Nathan, M.D.
Obstetrics & Gynecology Physician · Westlake Village, CA
Leena Shankar Nathan, M.D. is an obstetrics & gynecology physician with a practice address in Westlake Village, California, and NPI 1417170523, issued on Apr 10, 2007. Check the license (California A94923, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leena Shankar Nathan
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A94923 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1250 LA Venta Dr, Westlake Village, CA 91361
- Phone
- (805) 557-7180
- Enumerated
- Apr 10, 2007
- Record last updated
- Mar 14, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (805) 557-7181
- Medicare enrollment
- Enrolled (PECOS I20120504000091); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1250 LA Venta Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Chan, M.D.Neurological Surgery Physician1972531135
- Rauz Eshraghi, M.D.Internal Medicine Physician1619109378
- Stephanie Mandelman, M DObstetrics & Gynecology Physician1851315196
- Anita Pakula, MDDermatology Physician1205869625
- Kathleen RussellClinical Social Worker1801749577
- Elliott Schaffzin, MDOrthopaedic Surgery Physician1194821140
Verify Leena Shankar Nathan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A94923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
343 Medicare Part D claims for 112 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Estradiol100 claims
- Estradiol (Twice Weekly)39 claims
- Yuvafem33 claims
- Progesterone26 claims
- Valacyclovir20 claims
- Premarin18 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): 90.8 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Regents OF The University OF California Los AngelesSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Obstetrics & Gynecology Physician providers in California
There are 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Westlake Village →
Other obstetrics & gynecology physician records in California
- Ingrid Aalami, MDSan Jose, CA1952376550
- Avisa Abaian- Eagar, M.D.Orange, CA1316057755
- Derek Abbassi, MDWalnut Creek, CA1841364155
- Ahmed Abdelaziz, MDSanta Maria, CA1790039733
- Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
- Nicole Abell, DOVentura, CA1811243603
- Zachary AbelsonLos Angeles, CA1689237414
- Ray Abinader, M.D.Loma Linda, CA1770901548
- Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
- Nada Abou-HaibaLos Angeles, CA1134067549
Common questions
What is Leena Shankar Nathan, M.D.'s NPI number?
Leena Shankar Nathan, M.D.'s National Provider Identifier (NPI) is 1417170523, issued on Apr 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Leena Shankar Nathan, M.D. located?
The NPPES record lists a practice address at 1250 LA Venta Dr, Westlake Village, CA, 91361. Phone: (805) 557-7180. Providers update this record themselves, so call before visiting.
How can I verify Leena Shankar Nathan, M.D.'s license?
NPPES lists California license number A94923, 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 Leena Shankar Nathan, M.D. prescribe under Medicare Part D?
In 2024, Leena Shankar Nathan, M.D. had 343 Medicare Part D claims for 112 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Leena Shankar Nathan, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.8 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.