Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Tiffany L Shay Alexander, MD

Individual provider Occupational Medicine Physician · NPI 1346253903

Dr. Tiffany L Shay Alexander, MD practises Preventive Medicine in Chula Vista, California. Qualified in 1997, 29 years ago. Practices with Sharp Rees-Stealy Medical Group Inc, a 874-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
29
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

525 3rd Ave
Chula Vista, CA 91910-5616 Not confirmed with CMS for 13 years — call before visiting
Phone: (619) 585-4050
Fax: (619) 585-4054
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Occupational Medicine Physician (primary) Taxonomy 2083X0100X · Licence A68353 (CA)

Record details

NPI number1346253903
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 14, 2006
Last updated in NPPESJune 27, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPREVENTIVE MEDICINE
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Sharp Rees-Stealy Medical Group Inc — 874 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients280
Services billed 854 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Sharp Rees-Stealy Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 874 clinicians in the practice; 12 are shown here.

Other providers in Chula Vista