Danielle Westfall, M.D.
NPI 1891025896 · Anatomic Pathology & Clinical Pathology Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Danielle Westfall, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Thousand Oaks, CA (NPI 1891025896).
Provider details
- NPI number
- 1891025896
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A98345 (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
16 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
3,130 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 1,057 | $38 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 509 | $28 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 351 | $27 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 192 | $82 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 166 | $35 |
| Preparation of Tissue for Examination By Removing Any Calcium Present88311 | 132 | $12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$38 across 1 record (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
- 2010-01-13
- Last updated
- 2012-12-13
Frequently asked questions
- What is Danielle Westfall's NPI number?
- Danielle Westfall's National Provider Identifier (NPI) is 1891025896, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Danielle Westfall's specialty?
- Danielle Westfall is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Danielle Westfall located?
- Danielle Westfall's practice location on file with NPPES is 351 Rolling Oaks Dr, Thousand Oaks, CA 91361-1275.
- What is Danielle Westfall's phone number?
- The practice phone number listed in the NPPES registry for Danielle Westfall is (805) 373-8582.
- Does Danielle Westfall accept Medicare?
- Danielle Westfall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Danielle Westfall's NPI active?
- Yes — Danielle Westfall's NPI (1891025896) is active in the NPPES registry as of the last update on 2012-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.