Tim Doren, PA-C
NPI 1528395365 · Medical Physician Assistant · Norco, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tim Doren, PA-C is a Medical Physician Assistant provider in Norco, CA (NPI 1528395365).
Provider details
- NPI number
- 1528395365
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20287 (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 tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 139 | 129 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 100 | 95 |
| Doxycycline Hyclate | 100 | 96 |
| Azithromycin | 92 | 85 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 57 | 55 |
| Prednisone | 53 | 48 |
| Ciprofloxacin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-11-16
- Last updated
- 2022-08-11
- Certified
- 2022-08-11
Frequently asked questions
- What is Tim Doren's NPI number?
- Tim Doren's National Provider Identifier (NPI) is 1528395365, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tim Doren's specialty?
- Tim Doren is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tim Doren located?
- Tim Doren's practice location on file with NPPES is 1901 Town and Country Dr, Norco, CA 92860-3611.
- What is Tim Doren's phone number?
- The practice phone number listed in the NPPES registry for Tim Doren is (951) 737-8141.
- Does Tim Doren accept Medicare?
- Tim Doren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tim Doren's NPI active?
- Yes — Tim Doren's NPI (1528395365) is active in the NPPES registry as of the last update on 2022-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.