Lauren Sontag, MD

Medicare activity in 2024

Official CMS public-use data for Lauren Sontag, 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. Injection, denosumab, 1 mg (J0897)1,080 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)214 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)176 services
4. Insertion of needle into vein for collection of blood sample (36415)165 services
5. 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)153 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 cholesterol56%
• High blood pressure46%
• Arthritis40%
• Osteoporosis38%
• Depression16%
• Anxiety14%

Hospitals where Lauren Sontag works

Medicare's Facility Affiliation Data lists Lauren Sontag 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.

• Aspen Valley Hospital DistrictAspen, CO · Critical Access Hospital · Emergency services: listed by Medicare · CCN 061324
• Valley View Hospital AssociationGlenwood Springs, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060075

Practice locations

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

• 1906 Blake AveGlenwood Spgs, CO 81601
• 350 Market St, Unit 201Basalt, CO 81621
• 978 Euclid AveCarbondale, CO 81623

Group practices

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

• Valley View Hospital Association202 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Colorado →

Other family doctors in Glenwood Spgs

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

• Shane A. Lieberman, MD
• Sarah Graham, DO
• Daniel R. Smith, DO
• Corey Dobson, MD
• Crystal W. Roney, MD

All family doctors in Glenwood Spgs →

Other clinicians in Valley View Hospital Association

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

• Elizabeth C. Brew, MD
• Sarah Miller, NP
• Tess M. Jankovsky, MD
• Ashley R. Gilley, NP
• Mark L. Purnell, MD
• Sergiu Surdulescu, 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