Hema L. Vaidya-Nathan, MD

Medicare activity in 2024

Official CMS public-use data for Hema L. Vaidya-Nathan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)925 services
2. Insertion of needle into vein for collection of blood sample (36415)498 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)355 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)262 services
5. Annual alcohol misuse screening, 5 to 15 minutes (G0442)161 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis61%
• Ischemic heart disease32%
• Anxiety26%
• Diabetes24%

Hospitals where Hema L. Vaidya-Nathan works

Medicare's Facility Affiliation Data lists Hema L. Vaidya-Nathan at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Los Robles Hospital & Medical CenterThousand Oaks, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050549

Practice locations

Addresses where Hema L. Vaidya-Nathan is enrolled with Medicare (CMS data updated October 2, 2026).

• 227 W Janss RdThousand Oaks, CA 91360 (805) 496‑0165

Specialties

• Family Practiceprimary
• Geriatric Medicinealso

Find other Family Practice doctors in California →

Other family doctors in Thousand Oaks

Clinicians with the same Medicare primary specialty in Thousand Oaks, CA — not a recommendation.

• Stacy L. Waneka, MD
• Lawrence M. Hwang, MD
• Brenda S. Bahk, MD
• Jonathan A. Rosaasen, MD
• Austin Ardalan, DO
• Danielle M. Ryba, MD
• Leslie A. Johnson, MD
• Alicia A. Guevara, MD

All family doctors in Thousand Oaks →

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians