Alexandra Santiago-Vazquez
Infectious Disease Physician · Sacramento, CA
Alexandra Santiago-Vazquez is an infectious disease physician with a practice address in Sacramento, California, and NPI 1053623520, issued on Jul 13, 2010. Check the license (California 151454, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexandra Santiago-Vazquez
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License numbers
- 151454 CA
020638 PR
Self-reported in NPPES; status is on the state search - Practice location
- 1500 21St St, Sacramento, CA 95811
- Phone
- (916) 443-3299
- Enumerated
- Jul 13, 2010
- Record last updated
- Dec 26, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220118001202); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 1500 21St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Annie Adams-Roselle, LCSWClinical Social Worker1255735874
- Carmen Aguilar, LCSWClinical Social Worker1851637466
- Celeste ArmsteadSocial Worker1043728256
- Simone Atsina, M.D.Family Medicine Physician1831545185
- James Austin, NPFamily Nurse Practitioner1699060475
Verify Alexandra Santiago-Vazquez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 151454Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average infectious disease physician in 2024
376 Medicare Part D claims for 77 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.
Most prescribed
- Methenamine Hippurate54 claims
- Azithromycin43 claims
- Ethambutol Hcl24 claims
- Amoxicillin-Clavulanate Potass21 claims
- Cephalexin19 claims
- Nitrofurantoin Mono-Macro17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $27.61
1 payment: food and beverage; the largest payer was Inari Medical, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Carolinas Physicians Network IncCharlotte, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexandra Santiago-Vazquez among 1,119 infectious disease physician records in California
Alexandra Santiago-Vazquez is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 69% of them.
- NPI issued2010 · 69% of these records are older, 28% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2010 · median 2003 among the 735 with a school on file
- Record last updated2017 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in Sacramento → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Karishma Chawla, M.D.Sacramento, CA 958111295150852
- Malik DarwishSacramento, CA 958111093206658
- Karen Mark, M.D. MPHSacramento, CA 958111750491122
- Kristin Mills, DOSacramento, CA 958111851602536
- Philip Peters, M.D.Sacramento, CA 958111417102427
- Mark Swancutt, MD PHDSacramento, CA 958111346280211
- Michael Farber, M.D.Sacramento, CA 958141407087737
- Tracy Lumsden, PASacramento, CA 958141407817570
Common questions
What is Alexandra Santiago-Vazquez's NPI number?
Alexandra Santiago-Vazquez's National Provider Identifier (NPI) is 1053623520, issued on Jul 13, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Alexandra Santiago-Vazquez located?
The NPPES record lists a practice address at 1500 21St St, Sacramento, CA, 95811. Phone: (916) 443-3299. Providers update this record themselves, so call before visiting.
How can I verify Alexandra Santiago-Vazquez's license?
NPPES lists California license number 151454, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alexandra Santiago-Vazquez prescribe under Medicare Part D?
In 2024, Alexandra Santiago-Vazquez had 376 Medicare Part D claims for 77 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.