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Emergency Medicine

Theresa Perez-Macneil, DO

Works at hospitals in Safety Harbor, FL · Florida

Summary

Dr. Theresa Perez-Macneil, DO is an emergency medicine doctor at 3231 McMullen Booth Rd, Safety Harbor, FL 34695. Phone: (954) 939-5000. Accepts Medicare assignment. In 2024, Theresa Perez-Macneil had 399 Original Medicare patients and 416 services. NPI 1205044955. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 3231 McMullen Booth Rd, Safety Harbor, FL 34695 · Directions (1 more location)
  • Phone: (954) 939‑5000
  • Medicare: Accepts Medicare assignment
  • Hospital: Mease Countryside Hospital
  • Group practice: Coastline Emergency Physicians LLC
  • Medical school: graduated 2003 (23 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Theresa Perez-Macneil, 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 Theresa Perez-Macneil accept Medicare assignment?
Yes. Medicare's clinician data says Theresa Perez-Macneil 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 Theresa Perez-Macneil see?
In 2024, CMS data shows 399 Original Medicare patients and 416 services for Theresa Perez-Macneil. This counts Original Medicare only and measures volume, not quality.
What is Theresa Perez-Macneil's NPI number?
1205044955. 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 Theresa Perez-Macneil, 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 patients399
Services billed to Medicare416
Different services or procedures11
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)311 services
  2. Emergency department visit with moderate level of medical decision making (99284)47 services
  3. Critical care, first 30-74 minutes (99291)45 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%
  • Arthritis68%
  • Ischemic heart disease60%
  • Chronic kidney disease54%
  • Anxiety50%

Hospitals where Theresa Perez-Macneil works

Medicare's Facility Affiliation Data lists Theresa Perez-Macneil 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.

  • Mease Countryside HospitalSafety Harbor, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100265

Practice locations

Addresses where Theresa Perez-Macneil is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Theresa Perez-Macneil as a member of this group (CMS data updated October 2, 2026).

  • Coastline Emergency Physicians LLC19 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Florida →

Other emergency medicine doctors in Safety Harbor

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

All emergency medicine doctors in Safety Harbor →

Other clinicians in Coastline Emergency Physicians LLC

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

Clinician information

CredentialDO
Graduation year2003 (23 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1205044955
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