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Internal Medicine

Uma Gunnala, MD

Sees patients in Phoenix, AZ · Arizona

Summary

Dr. Uma Gunnala, MD is an internal medicine doctor at 20045 N 19th Ave Bldg, 11 Suite 165, Phoenix, AZ 85027. Phone: (602) 572-6791. Accepts Medicare assignment. In 2024, Uma Gunnala had 78 Original Medicare patients and 658 services. NPI 1881770220. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 20045 N 19th Ave Bldg, 11 Suite 165, Phoenix, AZ 85027 · Directions
  • Phone: (602) 572‑6791
  • Medicare: Accepts Medicare assignment
  • Medical school: graduated 1988 (38 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Uma Gunnala, 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 Uma Gunnala accept Medicare assignment?
Yes. Medicare's clinician data says Uma Gunnala 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 Uma Gunnala see?
In 2024, CMS data shows 78 Original Medicare patients and 658 services for Uma Gunnala. This counts Original Medicare only and measures volume, not quality.
What is Uma Gunnala's NPI number?
1881770220. 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 Uma Gunnala, 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 patients78
Services billed to Medicare658
Different services or procedures18
Participating Medicare providerYes
Average age of these patients73

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)209 services
  2. Insertion of needle into vein for collection of blood sample (36415)185 services
  3. Annual alcohol misuse screening, 5 to 15 minutes (G0442)63 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)50 services
  5. Annual depression screening, 5 to 15 minutes (G0444)50 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%
  • Arthritis35%
  • Diabetes32%
  • Chronic kidney disease26%
  • Osteoporosis24%

Practice locations

Addresses where Uma Gunnala is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in Arizona →

Other internal medicine doctors in Phoenix

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

All internal medicine doctors in Phoenix →

Clinician information

CredentialMD
Graduation year1988 (38 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1881770220
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians