Perrin Ybarra, PA-C
NPI 1285092908 · Physician Assistant · Pleasanton, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Perrin Ybarra, PA-C is a Physician Assistant provider in Pleasanton, CA (NPI 1285092908).
Provider details
- NPI number
- 1285092908
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 53181 (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
10 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
520 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 | 340 | $130 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 92 | $168 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 68 | $93 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 20 | $113 |
Typical Medicare-allowed amounts for these services range $93–$168 (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 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 850 | 267 |
| Sucralfate | 491 | 176 |
| Omeprazole | 413 | 143 |
| Dicyclomine Hcl | 313 | 127 |
| Famotidine | 187 | 66 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 131 | 125 |
| Metoclopramide Hcl | 125 | 39 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,411 across 72 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
Registry dates
- Enumerated
- 2016-02-09
- Last updated
- 2026-02-19
- Certified
- 2026-02-19
Frequently asked questions
- What is Perrin Ybarra's NPI number?
- Perrin Ybarra's National Provider Identifier (NPI) is 1285092908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Perrin Ybarra's specialty?
- Perrin Ybarra is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Perrin Ybarra located?
- Perrin Ybarra's practice location on file with NPPES is 5575 W Las Positas Blvd, Pleasanton, CA 94588-5801.
- What is Perrin Ybarra's phone number?
- The practice phone number listed in the NPPES registry for Perrin Ybarra is (925) 460-8167.
- Does Perrin Ybarra accept Medicare?
- Perrin Ybarra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Perrin Ybarra's NPI active?
- Yes — Perrin Ybarra's NPI (1285092908) is active in the NPPES registry as of the last update on 2026-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.