Allison O'Brien, PA-C
NPI 1528431368 · Physician Assistant · Truckee, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allison O'Brien, PA-C is a Physician Assistant provider in Truckee, CA (NPI 1528431368).
Provider details
- NPI number
- 1528431368
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 53011 (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 tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 204 | 203 |
| Omeprazole | 100 | 37 |
| Pantoprazole Sodium | 50 | 19 |
| Colestipol Hcl | 26 | 14 |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 22 | — |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 20 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$262 across 13 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
- 2015-11-02
- Last updated
- 2015-11-02
Frequently asked questions
- What is Allison O'Brien's NPI number?
- Allison O'Brien's National Provider Identifier (NPI) is 1528431368, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allison O'Brien's specialty?
- Allison O'Brien is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Allison O'Brien located?
- Allison O'Brien's practice location on file with NPPES is 10956 Donner Pass Rd, Truckee, CA 96161-4861.
- What is Allison O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Allison O'Brien is (530) 582-3277.
- Does Allison O'Brien accept Medicare?
- Allison O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allison O'Brien's NPI active?
- Yes — Allison O'Brien's NPI (1528431368) is active in the NPPES registry as of the last update on 2015-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.