Sireesha Nallu, MD

Medicare activity in 2024

Official CMS public-use data for Sireesha Nallu, 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 moderate level of decision making, if using time, 30 minutes or more (99214)120 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)101 services
3. Insertion of needle into vein for collection of blood sample (36415)51 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)35 services
5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)23 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 pressure64%
• Arthritis40%
• Diabetes34%
• Ischemic heart disease26%
• COPD23%

Hospitals where Sireesha Nallu works

Medicare's Facility Affiliation Data lists Sireesha Nallu 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.

• Flagstaff Medical CenterFlagstaff, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030023
• Verde Valley Medical CenterCottonwood, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030007
• Yavapai Regional Medical CenterPrescott, AZ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 030012

Practice locations

Addresses where Sireesha Nallu is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

• 1200 N Beaver StFlagstaff, AZ 86001 (928) 779‑3366
• 1200 N Beaver St, Attn. Managed Care ContractingFlagstaff, AZ 86001
• 1215 N Beaver St, Suite 203Flagstaff, AZ 86001 (928) 773‑2249
• 1895 N Jasper DrFlagstaff, AZ 86001
• 2000 S Thompson StFlagstaff, AZ 86001 (928) 226‑6400

Group practices

Medicare enrollment lists Sireesha Nallu as a member of this group (CMS data updated October 2, 2026).

• Northern Arizona Healthcare Corporation385 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Arizona →

Other family doctors in Flagstaff

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

• Derek Browne, DO
• Heather D. Crittenden, MD
• Amy H. Britt, MD
• Kristyn Wendelschafer, DO
• Bethany A. Davis, MD
• Demetra Barr Reynolds, MD
• Anjaneyulu Kosaraju, MD
• Julia Forberg, MD

All family doctors in Flagstaff →

Other clinicians in Northern Arizona Healthcare Corporation

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

• Minh Tran, MD
• Brandon E. Clark, DO
• Judith M. Wong, MD
• Shahryar Zamani Noor, MD
• Zachary S. Hinger, PA
• Derek Browne, DO

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