Nithyalakshmi Nambiar
Internal Medicine Physician · Thousand Oaks, CA
Nithyalakshmi Nambiar is an internal medicine physician with a practice address in Thousand Oaks, California, and NPI 1689237182, issued on Apr 19, 2019. Check the license (California A175969, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nithyalakshmi Nambiar
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A175969 CA
Self-reported in NPPES; status is on the state search - Practice location
- 248 Hampshire RD Ste 100, Thousand Oaks, CA 91361
- Phone
- (805) 370-0040
- Enumerated
- Apr 19, 2019
- Record last updated
- Oct 12, 2022
- Fax
- (805) 370-0041
- Medicare enrollment
- Enrolled (PECOS I20220922000681); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 248 Hampshire RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nazanin Asvadi, MDDiagnostic Radiology Physician1689197196
- Jonathan Chan, M.D.Pulmonary Disease Physician1982016929
- Diana CizmadijaNurse Practitioner1629408307
- Kosha Doshi, DOFamily Medicine Physician1588124903
- Alicia Guevara, M.D.Family Medicine Physician1629295217
- Mike Oulashian, M.D.Family Medicine Physician1164694212
Verify Nithyalakshmi Nambiar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A175969Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,021 Medicare Part D claims for 580 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Atorvastatin Calcium156 claims
- Rosuvastatin Calcium112 claims
- Levothyroxine Sodium75 claims
- Lisinopril72 claims
- Amlodipine Besylate60 claims
- Hydrochlorothiazide56 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
- The Regents OF The University OF CaliforniaThousand Oaks, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nithyalakshmi Nambiar among 17,696 internal medicine physician records in California
Nithyalakshmi Nambiar 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 2019, is newer than 86% of them.
- NPI issued2019 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 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).
62 internal medicine physician records list a practice address in Thousand Oaks
They are 62 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Thousand Oaks → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mandana Azar, M.D.Thousand Oaks, CA 913611851612402
- William Coburn, M.D.Thousand Oaks, CA 913611144336983
- Christine Dahlin, M.D.Westlake Village, CA 913611922293786
- Anil Daya, M.D.Westlake Village, CA 913611770542722
- Rauz Eshraghi, M.D.Westlake Village, CA 913611619109378
- Zoya Furman, M.D.Thousand Oaks, CA 913611083635205
- Linda Gerrits, MDWestlake Village, CA 913611598875072
- Jigar Ghelani, MDThousand Oaks, CA 913611699823609
Common questions
What is Nithyalakshmi Nambiar's NPI number?
Nithyalakshmi Nambiar's National Provider Identifier (NPI) is 1689237182, issued on Apr 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nithyalakshmi Nambiar located?
The NPPES record lists a practice address at 248 Hampshire RD Ste 100, Thousand Oaks, CA, 91361. Phone: (805) 370-0040. Providers update this record themselves, so call before visiting.
How can I verify Nithyalakshmi Nambiar's license?
NPPES lists California license number A175969, 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 Nithyalakshmi Nambiar prescribe under Medicare Part D?
In 2024, Nithyalakshmi Nambiar had 2,021 Medicare Part D claims for 580 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.