Quick answers
- Which hospitals does Tania M. Portillo work at?
- Medicare's official clinician data lists Tania M. Portillo at 1 hospital: Grossmont Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Tania M. Portillo see patients?
- Medicare's clinician data lists 5 practice locations, including Chula Vista, CA, San Ysidro, CA and La Mesa, CA. Call before your visit to confirm the address.
- What is Tania M. Portillo's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Tania M. Portillo accept Medicare assignment?
- Yes. Medicare's clinician data says Tania M. Portillo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Tania M. Portillo?
- (619) 662-4100, as listed in official Medicare / NPI Registry data.
- What is Tania M. Portillo's NPI number?
- 1124435896. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Tania M. Portillo works
Medicare's Facility Affiliation Data lists Tania M. Portillo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Grossmont HospitalLa Mesa, CA · Acute Care Hospital · CCN 050026
Practice locations
Addresses where Tania M. Portillo is enrolled with Medicare (CMS data updated 2026-10-02).
- 1637 3rd Ave, Suite BChula Vista, CA 91911 (619) 662‑4100
- 333 H St, Suite 2080Chula Vista, CA 91910 (619) 662‑4100
- 4004 Beyer BlvdSan Ysidro, CA 92173 (619) 428‑4463
- 4050 Beyer BlvdSan Ysidro, CA 92173 (619) 662‑4100
- 5555 Grossmont Ctr DrLa Mesa, CA 91942 (619) 465‑0711
Group practices
Medicare enrollment lists Tania M. Portillo as a member of these groups (CMS data updated 2026-10-02).
- Centro de Salud de la Comunidad de San Ysidro, Inc.297 clinicians in the group
- Team Physicians of Northern California Medical Group Inc85 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Chula Vista
Clinicians with the same Medicare primary specialty in Chula Vista, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Irvine California College Of Medicine |
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124435896 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians