Alexandra Santiago-Vazquez
NPI 1053623520 · Infectious Disease Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Santiago-Vazquez is a Infectious Disease Physician provider in Sacramento, CA (NPI 1053623520).
Provider details
- NPI number
- 1053623520
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- 151454 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
132 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 54 | $83 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 21 | $52 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 18 | $120 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 16 | $81 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 12 | $97 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methenamine Hippurate | 54 | 21 |
| Azithromycin | 43 | — |
| Ethambutol Hcl | 24 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 21 | 11 |
| Cephalexin | 19 | — |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 17 | — |
| Doxycycline Hyclate | 16 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$28 across 1 record (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
Additional practice locations (1)
- 6 Calle Jose De DiegoAnexo Antig AlcaldiaCarolina, PR 00986Phone: (787) 340-3795
Registry dates
- Enumerated
- 2010-07-13
- Last updated
- 2017-12-26
Frequently asked questions
- What is Alexandra Santiago-Vazquez's NPI number?
- Alexandra Santiago-Vazquez's National Provider Identifier (NPI) is 1053623520, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Santiago-Vazquez's specialty?
- Alexandra Santiago-Vazquez is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Alexandra Santiago-Vazquez located?
- Alexandra Santiago-Vazquez's practice location on file with NPPES is 1500 21st St, Sacramento, CA 95811-5216.
- What is Alexandra Santiago-Vazquez's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Santiago-Vazquez is (916) 443-3299.
- Does Alexandra Santiago-Vazquez accept Medicare?
- Alexandra Santiago-Vazquez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Santiago-Vazquez's NPI active?
- Yes — Alexandra Santiago-Vazquez's NPI (1053623520) is active in the NPPES registry as of the last update on 2017-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.