Heidi Peynado De Pena, MD

Medicare activity in 2024

Official CMS public-use data for Heidi Peynado De Pena, 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)260 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)147 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)49 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)42 services
5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)35 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 cholesterol71%
• Diabetes57%
• Arthritis49%
• Chronic kidney disease29%
• Osteoporosis25%

Hospitals where Heidi Peynado De Pena works

Medicare's Facility Affiliation Data lists Heidi Peynado De Pena 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.

• Benefis Hospitals IncGreat Falls, MT · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 270012
• Benefis Teton Medical CenterChoteau, MT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 271307
• Missouri River Medical CenterFort Benton, MT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 271304
• Northern Montana HospitalHavre, MT · Critical Access Hospital · Emergency services: listed by Medicare · CCN 271348

Practice locations

Addresses where Heidi Peynado De Pena is enrolled with Medicare (CMS data updated October 2, 2026).

• 1101 26th St S, AdminGreat Falls, MT 59405

Specialties

• Endocrinologyprimary

Find other Endocrinology doctors in Montana →

Other endocrinologists in Montana

Clinicians with the same Medicare primary specialty in Montana — not a recommendation.

• Jose C. Desouza, MD
• Michael Salim, MD
• Xiu Ying Au, MD
• Brian G. Rose, MD
• Samah E. Abu Omar, MD
• Lauren Kleess, MD
• Michele A. Danicich, MD
• Marlys Drange, MD

All endocrinologists in Montana →

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