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Family Practice

Shirley C. Rheinfelder, MD

Works at hospitals in Cottonwood, AZ · Prescott, AZ · Arizona

Summary

Dr. Shirley C. Rheinfelder, MD is a family doctor at 3149 N Windsong Dr, Prescott Valley, AZ 86314. Phone: (928) 445-6083. Accepts Medicare assignment. In 2024, Shirley C. Rheinfelder had 165 Original Medicare patients and 831 services. NPI 1013941327. 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 Shirley C. Rheinfelder, 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 Shirley C. Rheinfelder accept Medicare assignment?
Yes. Medicare's clinician data says Shirley C. Rheinfelder 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 Shirley C. Rheinfelder see?
In 2024, CMS data shows 165 Original Medicare patients and 831 services for Shirley C. Rheinfelder. This counts Original Medicare only and measures volume, not quality.
What is Shirley C. Rheinfelder's NPI number?
1013941327. 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 Shirley C. Rheinfelder, 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 patients165
Services billed to Medicare831
Different services or procedures32
Participating Medicare providerYes
Average age of these patients77

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)161 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)142 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)108 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)80 services
  5. Influenza vaccine split virus, preservative free (90662)63 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 pressure74%
  • Arthritis39%
  • Diabetes27%
  • Ischemic heart disease27%
  • Depression27%

Hospitals where Shirley C. Rheinfelder works

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

Specialties

Find other Family Practice doctors in Arizona →

Other family doctors in Prescott Valley

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

All family doctors in Prescott Valley →

Clinician information

CredentialMD
Medical schoolUniversity Of Arizona College Of Medicine
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1013941327
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