DR. TANIA PORTILLO MD
NPI 1124435896
Emergency Medicine in La Mesa, CA
About Dr. Tania Portillo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TANIA PORTILLO MD (NPI 1124435896) is an individual emergency medicine provider in La Mesa, California, licensed in California (A141013) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of Irvine California College Of Medicine (2013).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Tania Portillo Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Tania Portillo reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
El Cajon, CA 92020
- Reassigned Medicare billing, California enrollment
- 577 clinicians in this Medicare group
San Diego, CA 92120
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Escondido, CA 92029
- Reassigned Medicare billing, California enrollment
- 135 clinicians in this Medicare group
Pleasanton, CA 94588
- Reassigned Medicare billing, California enrollment
- 202 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91942 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LA MESA, CA 91942
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Tania Portillo's NPI number?
The NPI number for Tania Portillo is 1124435896. It was assigned to this individual provider in the NPPES registry on July 15, 2014.
Where is Tania Portillo located?
Tania Portillo practices at 5555 Grossmont Center Dr, La Mesa, CA 91942. The listed phone number is (619) 740-6000.
What is Tania Portillo's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Tania Portillo enrolled in Medicare?
Yes. Tania Portillo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Tania Portillo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tania Portillo reassigns Medicare benefits to 4 organizations: Centro De Salud De La Comunidad De San Ysidro, Inc. (El Cajon, CA), Southern California Permanente Medical Group (San Diego, CA), Palomar Emergency Physicians, Inc (Escondido, CA) and Team Physicians Of Northern California Medical Group Inc (Pleasanton, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Tania Portillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Tania Portillo was last updated on July 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Tania Portillo, MD · NPI 1124435896
Emergency Medicine physician in La Mesa, California. Individual provider, active in the CMS NPPES registry since July 15, 2014.
## Identity
- **NPI:** 1124435896 (Entity type: Individual)
- **Enumerated:** July 15, 2014
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A141013 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 5555 GROSSMONT CENTER DR, La Mesa, CA 91942-3019
- **Phone:** (619) 740-6000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Centro De Salud De La Comunidad De San Ysidro, Inc. (NPI 1568845741, El Cajon, CA); Southern California Permanente Medical Group (NPI 1225060742, San Diego, CA); Palomar Emergency Physicians, Inc (NPI 1124698139, Escondido, CA); Team Physicians Of Northern California Medical Group Inc (NPI 1649692716, Pleasanton, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Irvine California College Of Medicine, class of 2013
## Record status
- **NPPES last updated:** July 16, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1124435896) · Data from the CMS NPPES public registry.