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Physician Assistant

Baylee J. Alexander, PA

Sees patients in Tarzana, CA · Los Angeles, CA · California

Summary

Baylee J. Alexander, PA is a physician assistant at 18321 Clark St, Tarzana, CA 91356. Phone: (818) 881-0800. Accepts Medicare assignment. In 2024, Baylee J. Alexander had 146 Original Medicare patients and 646 services. NPI 1437718731. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Physician assistant
  • Address: 18321 Clark St, Tarzana, CA 91356 · Directions (3 more locations)
  • Phone: (818) 881‑0800
  • Medicare: Accepts Medicare assignment
  • Group practice: Cedars-Sinai Medical Care Foundation
  • School: graduated 2019
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Baylee J. Alexander, 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 Baylee J. Alexander accept Medicare assignment?
Yes. Medicare's clinician data says Baylee J. Alexander 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 Baylee J. Alexander see?
In 2024, CMS data shows 146 Original Medicare patients and 646 services for Baylee J. Alexander. This counts Original Medicare only and measures volume, not quality.
What is Baylee J. Alexander's NPI number?
1437718731. 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 Baylee J. Alexander, 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 patients146
Services billed to Medicare646
Different services or procedures29
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Urinalysis, manual test (81002)165 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)109 services
  3. Ultrasound measurement of bladder capacity after voiding (51798)78 services
  4. Insertion of temporary bladder tube (51701)54 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)37 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%
  • Arthritis75%
  • Osteoporosis45%
  • Depression40%
  • Diabetes36%

Practice locations

Addresses where Baylee J. Alexander is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Baylee J. Alexander as a member of this group (CMS data updated October 2, 2026).

  • Cedars-Sinai Medical Care Foundation1,692 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, California →

Other physician assistants in Tarzana

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

All physician assistants in Tarzana →

Other clinicians in Cedars-Sinai Medical Care Foundation

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

Clinician information

CredentialPA
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1437718731
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians