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Physician Assistant

Jessica M. Rivera, PA

Works at hospitals in Whittier, CA · California

Summary

Jessica M. Rivera, PA is a physician assistant at 12675 La Mirada Blvd, Suite 201and401, La Mirada, CA 90638. Phone: (562) 903-7339. Accepts Medicare assignment. In 2024, Jessica M. Rivera had 141 Original Medicare patients and 335 services. NPI 1255840013. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Physician assistant
  • Address: 12675 La Mirada Blvd, Suite 201and401, La Mirada, CA 90638 · Directions (2 more locations)
  • Phone: (562) 903‑7339
  • Medicare: Accepts Medicare assignment
  • Hospital: PIH Health Hospital-Whittier
  • Group practice: PIH Health Physicians
  • School: graduated 2017
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Jessica M. Rivera, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Jessica M. Rivera accept Medicare assignment?
Yes. Medicare's clinician data says Jessica M. Rivera accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Jessica M. Rivera see?
In 2024, CMS data shows 141 Original Medicare patients and 335 services for Jessica M. Rivera. This counts Original Medicare only and measures volume, not quality.
What is Jessica M. Rivera's NPI number?
1255840013. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Jessica M. Rivera, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients141
Services billed to Medicare335
Different services or procedures40
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)136 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)51 services
  3. Administration of influenza virus vaccine (G0008)21 services
  4. Influenza vaccine split virus, preservative free (90662)15 services
  5. Urinalysis, manual test (81002)11 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure69%
  • Arthritis45%
  • Diabetes32%
  • Anxiety24%
  • Depression21%

Hospitals where Jessica M. Rivera works

Medicare's Facility Affiliation Data lists Jessica M. Rivera at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Jessica M. Rivera is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jessica M. Rivera as a member of this group (CMS data updated October 2, 2026).

  • PIH Health Physicians622 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, California →

Other physician assistants in La Mirada

Clinicians with the same Medicare primary specialty in La Mirada, CA — not a recommendation.

All physician assistants in La Mirada →

Other clinicians in PIH Health Physicians

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialPA
Graduation year2017
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1255840013
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians