Rafael Alonso, PA-C
NPI 1598160004 · Physician Assistant · Guadalupe, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rafael Alonso, PA-C is a Physician Assistant provider in Guadalupe, CA (NPI 1598160004).
Provider details
- NPI number
- 1598160004
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 52072 (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
11 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 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 150 | 54 |
| Amlodipine Besylate | 98 | 30 |
| Metformin Hcl | 92 | 34 |
| Lisinopril | 83 | 21 |
| Omeprazole | 80 | 21 |
| Tamsulosin Hcl | 67 | 15 |
| Hydrochlorothiazide | 60 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-10-27
- Last updated
- 2022-09-21
- Certified
- 2022-09-21
Frequently asked questions
- What is Rafael Alonso's NPI number?
- Rafael Alonso's National Provider Identifier (NPI) is 1598160004, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rafael Alonso's specialty?
- Rafael Alonso is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Rafael Alonso located?
- Rafael Alonso's practice location on file with NPPES is 4723 W Main St, Guadalupe, CA 93434-1787.
- What is Rafael Alonso's phone number?
- The practice phone number listed in the NPPES registry for Rafael Alonso is (805) 343-5577.
- Does Rafael Alonso accept Medicare?
- Rafael Alonso is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rafael Alonso's NPI active?
- Yes — Rafael Alonso's NPI (1598160004) is active in the NPPES registry as of the last update on 2022-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.