Gillian R. Woodruff, MD

Medicare activity in 2024

Official CMS public-use data for Gillian R. Woodruff, 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.

Most frequent services

1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)164 services
2. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)116 services
3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)86 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)60 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)15 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 pressure63%
• Arthritis48%
• Osteoporosis33%
• Chronic kidney disease23%
• Depression20%

Hospitals where Gillian R. Woodruff works

Medicare's Facility Affiliation Data lists Gillian R. Woodruff 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.

• Hopi Health Care CenterPolacca, AZ · Critical Access Hospital · Emergency services: not listed by Medicare · CCN 031305

Practice locations

Addresses where Gillian R. Woodruff is enrolled with Medicare (CMS data updated October 2, 2026).

• 12033 Agency RdParker, AZ 85344 (928) 669‑2137
• 1900 Palo Verde StHavasu Lake, CA 92363 (760) 858‑4790
• Highway 264 Milepost, Suite 388Polacca, AZ 86042
• PO Box, 4000 Hwy 264 Milepost 388Polacca, AZ 86042

Group practices

Medicare enrollment lists Gillian R. Woodruff as a member of these groups (CMS data updated October 2, 2026).

• DHHS IHS Phoenix Area59 clinicians in the group
• DHHS IHS Phoenix Area27 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Arizona →

Other internal medicine doctors in Parker

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

• Lisa M. Sumner, MD
• Corey N. Brown, MD
• Nauroz Ali, MD
• Diane Adams, DO
• Virgilio A. Cantu, MD
• Norman Mendoza, MD

All internal medicine doctors in Parker →

Other clinicians in DHHS IHS Phoenix Area

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

• David Lau, DPM
• Thomas Radice, MD
• Tina Evenson, NP
• Lilly M. Shimahara, DPM
• Christine C. Tardif, MD
• Moses B. Benavides, MD

Clinician information

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