Emily Nessen, P.A-C
NPI 1831800564 · Physician Assistant · Lompoc, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1831800564
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A-C
- Sex
- Female
- Sole proprietor
- No
- License
- 63536 (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
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
218 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 137 | $101 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 54 | $143 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 27 | $59 |
Typical Medicare-allowed amounts for these services range $59–$143 (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 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 15 | 14 |
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 no Part D record, 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.
$52 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 (5)
- 850 Fair Oaks Ave Ste 100Arroyo Grande, CA 93420-3929Phone: (805) 782-8844Fax: (805) 549-6988
- 127 Casa StSan Luis Obispo, CA 93405-1803Phone: (805) 543-2228
- 1941 Johnson Ave Ste 102San Luis Obispo, CA 93401-4174Phone: (805) 782-8844Fax: (805) 549-6986
- 1941 Johnson Ave Ste 101San Luis Obispo, CA 93401-4154Phone: (805) 782-8844Fax: (805) 549-6985
- 295 Posada Ln Ste aTempleton, CA 93465-4055Phone: (805) 782-8844Fax: (805) 549-6987
Registry dates
- Enumerated
- 2022-12-13
- Last updated
- 2024-12-19
- Certified
- 2024-12-19
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.