Emily Sim, PA-C
NPI 1801538699 · Physician Assistant · Oxnard, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Emily Sim, PA-C is a Physician Assistant provider in Oxnard, CA (NPI 1801538699).
Provider details
- NPI number
- 1801538699
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 61271 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
886 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 348 | $82 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 112 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 101 | $115 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 58 | $101 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 55 | $33 |
| X-Ray of Foot, Minimum of 3 Views73630 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Meloxicam | 134 | 45 |
| Celecoxib | 76 | 24 |
| Diclofenac Sodium | 19 | 11 |
| Tramadol Hcl | 16 | — |
| Ibuprofen | 12 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$47 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 (1)
- 3525 Loma Vista Rd Ste aVentura, CA 93003-3165Phone: (805) 641-6415Fax: (805) 641-6424
Registry dates
- Enumerated
- 2022-04-12
- Last updated
- 2026-01-20
- Certified
- 2026-01-20
Frequently asked questions
- What is Emily Sim's NPI number?
- Emily Sim's National Provider Identifier (NPI) is 1801538699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Emily Sim's specialty?
- Emily Sim is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Emily Sim located?
- Emily Sim's practice location on file with NPPES is 2221 Wankel Way, Oxnard, CA 93030-0192.
- What is Emily Sim's phone number?
- The practice phone number listed in the NPPES registry for Emily Sim is (805) 988-9366.
- Does Emily Sim accept Medicare?
- Emily Sim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Emily Sim's NPI active?
- Yes — Emily Sim's NPI (1801538699) is active in the NPPES registry as of the last update on 2026-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.