Hema Vaidya-Nathan, M.D.
NPI 1225181241 · Family Medicine Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hema Vaidya-Nathan, M.D. is a Family Medicine Physician provider in Thousand Oaks, CA (NPI 1225181241).
Provider details
- NPI number
- 1225181241
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A33370 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,192 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 925 | $138 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 498 | $9 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 355 | $121 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 262 | $193 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 161 | $21 |
| Annual, Face-To-Face Intensive Behavioral Therapy for Cardiovascular Disease, Individual, 15 MinutesG0446 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 295 | 64 |
| Atorvastatin Calcium | 235 | 59 |
| Amlodipine Besylate | 190 | 46 |
| Losartan Potassium | 181 | 43 |
| Furosemide | 179 | 43 |
| Metoprolol Succinate | 145 | 34 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$46 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-21
- Last updated
- 2010-10-15
Frequently asked questions
- What is Hema Vaidya-Nathan's NPI number?
- Hema Vaidya-Nathan's National Provider Identifier (NPI) is 1225181241, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hema Vaidya-Nathan's specialty?
- Hema Vaidya-Nathan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hema Vaidya-Nathan located?
- Hema Vaidya-Nathan's practice location on file with NPPES is 227 W Janss Rd, Thousand Oaks, CA 91360-1848.
- What is Hema Vaidya-Nathan's phone number?
- The practice phone number listed in the NPPES registry for Hema Vaidya-Nathan is (805) 496-0135.
- Does Hema Vaidya-Nathan accept Medicare?
- Hema Vaidya-Nathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hema Vaidya-Nathan's NPI active?
- Yes — Hema Vaidya-Nathan's NPI (1225181241) is active in the NPPES registry as of the last update on 2010-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.