Sarah Kay, PA
NPI 1538634209 · Physician Assistant · Escondido, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Kay, PA is a Physician Assistant provider in Escondido, CA (NPI 1538634209).
Provider details
- NPI number
- 1538634209
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- Yes
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 tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
319 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 169 | $82 |
| Automated Urinalysis Test81003 | 42 | $2 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 42 | $116 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 24 | $16 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 17 | $13 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus87426 | 13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 76 | 74 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 48 | 48 |
| Cefuroxime Axetilbrand: Cefuroxime | 39 | 38 |
| Cephalexin | 30 | 30 |
| Ofloxacin | 26 | 25 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 22 | 21 |
| Amoxicillin | 21 | 21 |
Practice location
Mailing address
Additional practice locations (1)
- 2575 Yorba Linda BlvdFullerton, CA 92831-1615Phone: (714) 449-7400
Registry dates
- Enumerated
- 2018-10-09
- Last updated
- 2024-12-12
- Certified
- 2024-12-12
Frequently asked questions
- What is Sarah Kay's NPI number?
- Sarah Kay's National Provider Identifier (NPI) is 1538634209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Kay's specialty?
- Sarah Kay is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sarah Kay located?
- Sarah Kay's practice location on file with NPPES is 225 E 2nd Ave, Escondido, CA 92025-4212.
- What is Sarah Kay's phone number?
- The practice phone number listed in the NPPES registry for Sarah Kay is (760) 291-6700.
- Does Sarah Kay accept Medicare?
- Sarah Kay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Kay's NPI active?
- Yes — Sarah Kay's NPI (1538634209) is active in the NPPES registry as of the last update on 2024-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.