Nastassja Bell, MD
NPI 1528630316 · Family Medicine Physician · Oxnard, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nastassja Bell, MD is a Family Medicine Physician provider in Oxnard, CA (NPI 1528630316).
Provider details
- NPI number
- 1528630316
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A193954 (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
4 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
19 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 | 19 | $137 |
Typical Medicare-allowed amounts for these services range $137–$137 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 24 | 11 |
| Atorvastatin Calcium | 22 | 13 |
| Omeprazole | 18 | — |
| Lisinopril | 14 | — |
| Furosemide | 12 | — |
| Levetiracetam | 12 | — |
| Metformin Hcl | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$37 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
Additional practice locations (2)
- 845 N 10th St Ste 3Santa Paula, CA 93060-1348Phone: (805) 933-8650
- 300 Hillmont AveVentura, CA 93003-1651Phone: (805) 652-6000
Registry dates
- Enumerated
- 2021-07-12
- Last updated
- 2025-03-24
- Certified
- 2025-03-24
Frequently asked questions
- What is Nastassja Bell's NPI number?
- Nastassja Bell's National Provider Identifier (NPI) is 1528630316, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nastassja Bell's specialty?
- Nastassja Bell is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nastassja Bell located?
- Nastassja Bell's practice location on file with NPPES is 451 W Gonzales Rd Ste 230, Oxnard, CA 93036-0726.
- What is Nastassja Bell's phone number?
- The practice phone number listed in the NPPES registry for Nastassja Bell is (805) 988-1443.
- Does Nastassja Bell accept Medicare?
- Nastassja Bell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nastassja Bell's NPI active?
- Yes — Nastassja Bell's NPI (1528630316) is active in the NPPES registry as of the last update on 2025-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.