Quick answers
- Does Lori J. Wynstock accept Medicare assignment?
- Medicare's clinician data says Lori J. Wynstock may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Lori J. Wynstock see?
- In 2024, CMS data shows 404 Original Medicare patients and 4,321 services for Lori J. Wynstock. This counts Original Medicare only and measures volume, not quality.
- What is Lori J. Wynstock's NPI number?
- 1194764589. 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 Lori J. Wynstock, 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 patients | 404 |
|---|---|
| Services billed to Medicare | 4,321 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 80 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)2,580 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)516 services
- Administration of influenza virus vaccine (G0008)203 services
- Influenza vaccine split virus, preservative free (90662)195 services
- Injection of drug or substance under skin or into muscle (96372)141 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 cholesterol61%
- High blood pressure57%
- Arthritis54%
- Ischemic heart disease21%
- Atrial fibrillation21%
- Depression16%
Hospitals where Lori J. Wynstock works
Medicare's Facility Affiliation Data lists Lori J. Wynstock 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.
- Huntington HospitalPasadena, CA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 050438
Practice locations
Addresses where Lori J. Wynstock is enrolled with Medicare (CMS data updated October 2, 2026).
- 950 S Arroyo Pkwy, Fl 3Pasadena, CA 91105 (626) 793‑6113
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Pasadena
Clinicians with the same Medicare primary specialty in Pasadena, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Un Of California, Irvine, College Of Medicine |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1194764589 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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