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

Family Practice

Shirlynn Althea Chu, MD

Works at hospitals in Naples, FL · Florida

Summary

Dr. Shirlynn Althea Chu, MD is a family doctor at 6101 Pine Ridge Rd, Naples, FL 34119. Phone: (239) 348-4221. Accepts Medicare assignment. In 2024, Shirlynn Althea Chu had 596 Original Medicare patients and 1,712 services. NPI 1992227508. 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 Shirlynn Althea Chu, 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 Shirlynn Althea Chu accept Medicare assignment?
Yes. Medicare's clinician data says Shirlynn Althea Chu 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 Shirlynn Althea Chu see?
In 2024, CMS data shows 596 Original Medicare patients and 1,712 services for Shirlynn Althea Chu. This counts Original Medicare only and measures volume, not quality.
What is Shirlynn Althea Chu's NPI number?
1992227508. 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 Shirlynn Althea Chu, 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 patients596
Services billed to Medicare1,712
Different services or procedures34
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)552 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)370 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)213 services
  4. Annual alcohol misuse screening, 5 to 15 minutes (G0442)149 services
  5. Annual depression screening, 5 to 15 minutes (G0444)103 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 pressure65%
  • Arthritis43%
  • Osteoporosis31%
  • Ischemic heart disease28%
  • Anxiety25%

Hospitals where Shirlynn Althea Chu works

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

Group practices

Medicare enrollment lists Shirlynn Althea Chu as a member of this group (CMS data updated October 2, 2026).

  • Collier Hma Physician Management LLC101 clinicians in the group

Specialties

Find other Family Practice doctors in Florida →

Other family doctors in Naples

Clinicians with the same Medicare primary specialty in Naples, FL — not a recommendation.

All family doctors in Naples →

Other clinicians in Collier Hma Physician Management LLC

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

Clinician information

CredentialMD
Graduation year2016 (10 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1992227508
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