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Emergency Medicine

Horia Tatu, MD

Works at hospitals in Caro, MI · Alpena, MI · Michigan

Summary

Dr. Horia Tatu, MD is an emergency medicine doctor at 1501 W Chisholm St, Alpena, MI 49707. Phone: (989) 356-7000. Accepts Medicare assignment. In 2024, Horia Tatu had 138 Original Medicare patients and 172 services. NPI 1093833535. 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: 1501 W Chisholm St, Alpena, MI 49707 · Directions (2 more locations)
  • Phone: (989) 356‑7000
  • Medicare: Accepts Medicare assignment
  • Hospitals: McLaren Caro Region, MyMichigan Medical Center Alpena
  • Group practice: McLaren Hospital Group (+2 more)
  • Medical school: Wayne State University School Of Medicine · graduated 2007 (19 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Horia Tatu, 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 Horia Tatu accept Medicare assignment?
Yes. Medicare's clinician data says Horia Tatu 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 Horia Tatu see?
In 2024, CMS data shows 138 Original Medicare patients and 172 services for Horia Tatu. This counts Original Medicare only and measures volume, not quality.
What is Horia Tatu's NPI number?
1093833535. 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 Horia Tatu, 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 patients138
Services billed to Medicare172
Different services or procedures13
Participating Medicare providerYes
Average age of these patients68

Most frequent services

  1. Emergency department visit with moderate level of medical decision making (99284)45 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)38 services
  3. Emergency department visit with high level of medical decision making (99285)34 services
  4. Emergency department visit with low level of medical decision making (99283)31 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%
  • Arthritis60%
  • Anxiety54%
  • Ischemic heart disease46%
  • Depression46%

Hospitals where Horia Tatu works

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

Group practices

Medicare enrollment lists Horia Tatu as a member of these groups (CMS data updated October 2, 2026).

  • McLaren Hospital Group375 clinicians in the group
  • McLaren Medical Group213 clinicians in the group
  • Sound Inpatient Physicians-Michigan PLLC171 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Michigan →

Other emergency medicine doctors in Alpena

Clinicians with the same Medicare primary specialty in Alpena, MI — not a recommendation.

All emergency medicine doctors in Alpena →

Other clinicians in McLaren Hospital Group

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

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year2007 (19 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093833535
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