Leena Nathan, M.D.
NPI 1417170523 · Obstetrics & Gynecology Physician · Westlake Village, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leena Nathan, M.D. is a Obstetrics & Gynecology Physician provider in Westlake Village, CA (NPI 1417170523).
Provider details
- NPI number
- 1417170523
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A94923 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
229 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 88 | $42 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 80 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $138 |
| Biopsy and Scraping of Cervix Using an Endoscope57454 | 12 | $180 |
Typical Medicare-allowed amounts for these services range $42–$180 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 100 | 40 |
| Estradiolbrand: Estradiol (twice Weekly) | 39 | — |
| Estradiolbrand: Yuvafem | 33 | 13 |
| Progesterone, Micronizedbrand: Progesterone | 26 | — |
| Valacyclovir Hclbrand: Valacyclovir | 20 | — |
| Estrogens, Conjugatedbrand: Premarin | 18 | 13 |
| Estrogen,con/M-Progest Acetbrand: Prempro |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-10
- Last updated
- 2014-03-14
Frequently asked questions
- What is Leena Nathan's NPI number?
- Leena Nathan's National Provider Identifier (NPI) is 1417170523, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leena Nathan's specialty?
- Leena Nathan is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Leena Nathan located?
- Leena Nathan's practice location on file with NPPES is 1250 La Venta Dr, Westlake Village, CA 91361-3702.
- What is Leena Nathan's phone number?
- The practice phone number listed in the NPPES registry for Leena Nathan is (805) 557-7180.
- Does Leena Nathan accept Medicare?
- Leena Nathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leena Nathan's NPI active?
- Yes — Leena Nathan's NPI (1417170523) is active in the NPPES registry as of the last update on 2014-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.