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Family Practice

Jennifer S. Young, DO

Works at hospitals in Simi Valley, CA · Thousand Oaks, CA · Northridge, CA · California

Summary

Dr. Jennifer S. Young, DO is a family doctor at 2100 Lynn Rd, Suite 215, Thousand Oaks, CA 91360. Phone: (805) 496-6971. Accepts Medicare assignment. In 2024, Jennifer S. Young had 193 Original Medicare patients and 1,762 services. NPI 1225359839. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Jennifer S. Young, 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 Jennifer S. Young accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer S. Young 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 Jennifer S. Young see?
In 2024, CMS data shows 193 Original Medicare patients and 1,762 services for Jennifer S. Young. This counts Original Medicare only and measures volume, not quality.
What is Jennifer S. Young's NPI number?
1225359839. 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 Jennifer S. Young, 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 patients193
Services billed to Medicare1,762
Different services or procedures43
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)304 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)164 services
  3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)137 services
  4. Annual alcohol misuse screening, 5 to 15 minutes (G0442)130 services
  5. Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes (G0446)130 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%
  • Arthritis45%
  • Ischemic heart disease31%
  • Chronic kidney disease31%
  • Diabetes25%

Hospitals where Jennifer S. Young works

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

Specialties

Find other Family Practice doctors in California →

Other family doctors in Thousand Oaks

Clinicians with the same Medicare primary specialty in Thousand Oaks, CA — not a recommendation.

All family doctors in Thousand Oaks →

Clinician information

CredentialDO
Medical schoolWestern University Of Health Sciences College Of Dental Med
Graduation year2010 (16 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1225359839
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