Melissa B. Gruen, MD

Medicare activity in 2024

Official CMS public-use data for Melissa B. Gruen, 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. Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)266 services
2. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)173 services
3. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)98 services
4. Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)78 services
5. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)66 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 pressure70%
• Alzheimer's disease or dementia65%
• High cholesterol56%
• Arthritis45%
• Depression40%
• Diabetes39%

Hospitals where Melissa B. Gruen works

Medicare's Facility Affiliation Data lists Melissa B. Gruen 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.

• Arkansas Valley Regional Medical CenterLajuna, CO · Critical Access Hospital · Emergency services: listed by Medicare · CCN 061336

Practice locations

Addresses where Melissa B. Gruen is enrolled with Medicare (CMS data updated October 2, 2026).

• 999 17th St, Suite 500Denver, CO 80202 (720) 355‑0539

Group practices

Medicare enrollment lists Melissa B. Gruen as a member of this group (CMS data updated October 2, 2026).

• Meadows Family Medical Center Inc62 clinicians in the group

Specialties

• Family Practiceprimary
• Geriatric Medicinealso

Find other Family Practice doctors in Colorado →

Other family doctors in Denver

Clinicians with the same Medicare primary specialty in Denver, CO — not a recommendation.

• Keri A. Hobert, MD
• Mark Wisthoff, DO
• Michelle S. Duran, MD
• Randall G. Craig, MD
• Ryan T. Finigan, MD
• David M. Clampitt, MD
• Ashley Q. Mai, MD
• Terese E. Donch, DO

All family doctors in Denver →

Other clinicians in Meadows Family Medical Center Inc

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

• Ruth Cano, MD
• Hong Chang, NP
• Sydni Mueller, NP
• Belinda M. Higa, NP
• Stefano H. Lee, MD
• Thomas S. Good, NP

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