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Family Practice

Loan T. Haase, MD

Works at hospitals in Tucson, AZ · Oro Valley, AZ · Arizona

Summary

Dr. Loan T. Haase, MD is a family doctor at 2055 W Hospital Dr, Tucson, AZ 85704. Phone: (520) 547-5725. Accepts Medicare assignment. In 2024, Loan T. Haase had 418 Original Medicare patients and 5,036 services. NPI 1659682490. 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 Loan T. Haase, 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 Loan T. Haase accept Medicare assignment?
Yes. Medicare's clinician data says Loan T. Haase 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 Loan T. Haase see?
In 2024, CMS data shows 418 Original Medicare patients and 5,036 services for Loan T. Haase. This counts Original Medicare only and measures volume, not quality.
What is Loan T. Haase's NPI number?
1659682490. 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 Loan T. Haase, 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 patients418
Services billed to Medicare5,036
Different services or procedures119
Participating Medicare providerYes
Average age of these patients75

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)572 services
  2. Insertion of needle into vein for collection of blood sample (36415)556 services
  3. Blood test, comprehensive group of blood chemicals (80053)424 services
  4. Blood test, thyroid stimulating hormone (tsh) (84443)368 services
  5. Complete blood cell count (red cells, white blood cell, platelets), automated test (85027)359 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 cholesterol70%
  • High blood pressure66%
  • Arthritis40%
  • Diabetes23%
  • Ischemic heart disease20%
  • Chronic kidney disease20%

Hospitals where Loan T. Haase works

Medicare's Facility Affiliation Data lists Loan T. Haase 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.

  • Northwest Medical CenterTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030085
  • Oro Valley HospitalOro Valley, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030114
  • Tucson Medical CenterTucson, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030006

Practice locations

Addresses where Loan T. Haase is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Loan T. Haase as a member of this group (CMS data updated October 2, 2026).

  • Arizona Community Physicians PC161 clinicians in the group

Specialties

Find other Family Practice doctors in Arizona →

Other family doctors in Tucson

Clinicians with the same Medicare primary specialty in Tucson, AZ — not a recommendation.

All family doctors in Tucson →

Other clinicians in Arizona Community Physicians PC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Arizona College Of Medicine
Graduation year2010 (16 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1659682490
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