Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Jessica Vo, MD

Works at hospitals in Fountain Valley, CA · California

Summary

Dr. Jessica Vo, MD is an internal medicine doctor at 18035 Brookhurst St, Suite 2100, Fountain Valley, CA 92708. Phone: (657) 241-9090. Accepts Medicare assignment. In 2024, Jessica Vo had 182 Original Medicare patients and 500 services. NPI 1447887138. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 18035 Brookhurst St, Suite 2100, Fountain Valley, CA 92708 · Directions
  • Phone: (657) 241‑9090
  • Medicare: Accepts Medicare assignment
  • Hospital: Memorialcare Orange Coast Medical Center
  • Group practice: Memorialcare Medical Foundation
  • Medical school: University Of Colorado School Of Medicine, Aurora · graduated 2020 (6 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jessica Vo, 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 Vo accept Medicare assignment?
Yes. Medicare's clinician data says Jessica Vo 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 Vo see?
In 2024, CMS data shows 182 Original Medicare patients and 500 services for Jessica Vo. This counts Original Medicare only and measures volume, not quality.
What is Jessica Vo's NPI number?
1447887138. 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 Vo, 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 patients182
Services billed to Medicare500
Different services or procedures9
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)341 services
  2. Hospital discharge day management, more than 30 minutes (99239)85 services
  3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)53 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 blood pressure75%
  • High cholesterol75%
  • Chronic kidney disease54%
  • Arthritis50%
  • Heart failure47%
  • Atrial fibrillation45%

Hospitals where Jessica Vo works

Medicare's Facility Affiliation Data lists Jessica Vo 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 Vo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Memorialcare Medical Foundation566 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Fountain Valley

Clinicians with the same Medicare primary specialty in Fountain Valley, CA — not a recommendation.

All internal medicine doctors in Fountain Valley →

Other clinicians in Memorialcare Medical Foundation

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

Clinician information

CredentialMD
Medical schoolUniversity Of Colorado School Of Medicine, Aurora
Graduation year2020 (6 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1447887138
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