Glenda L. Montague, MD

Medicare activity in 2024

Official CMS public-use data for Glenda L. Montague, 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. Removal of impacted ear wax (69210)342 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)333 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)219 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)160 services
5. Diagnostic exam of voice box using a flexible endoscope (31575)79 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%
• Arthritis49%
• Ischemic heart disease23%
• Diabetes22%
• Osteoporosis21%

Hospitals where Glenda L. Montague works

Medicare's Facility Affiliation Data lists Glenda L. Montague 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.

• Adventist Health ClearlakeClearlake, CA · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 051317
• Adventist Health St HelenaSaint Helena, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050013
• Providence Queen of the Valley Medical CenterNapa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050009

Practice locations

Addresses where Glenda L. Montague is enrolled with Medicare (CMS data updated October 2, 2026).

• 1100 Trancas St, Suite 210Napa, CA 94558 (714) 449‑4800
• 3270 Villa LnNapa, CA 94558 (707) 251‑3608

Group practices

Medicare enrollment lists Glenda L. Montague as a member of these groups (CMS data updated October 2, 2026).

• Providence Medical Foundation1,466 clinicians in the group
• Bass Medical Group291 clinicians in the group

Specialties

• Otolaryngologyprimary

Find other Otolaryngology doctors in California →

Other ENT doctors in California

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

• McKenzie Tolan, MD
• Edward S. Lee, MD
• Jivianne K. Lee, MD
• Ronald G. Dong, MD
• Andrew S. Florea, MD
• Rose Eapen, MD
• Michelle J. Lee, MD
• Vishad Nabili, MD

All ENT doctors in California →

Other clinicians in Providence Medical Foundation

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

• Thong Nguyen, DO
• Sarom Pyun, MD
• Maurizio Bonacini, MD
• John Melvin W. Valenzuela, NP
• Tuan V. Phan, MD
• Kasra Morshedizadeh, 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