Quick answers
- Does Nathaniel R. Little accept Medicare assignment?
- Yes. Medicare's clinician data says Nathaniel R. Little 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 Nathaniel R. Little see?
- In 2024, CMS data shows 258 Original Medicare patients and 679 services for Nathaniel R. Little. This counts Original Medicare only and measures volume, not quality.
- What is Nathaniel R. Little's NPI number?
- 1871720748. 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 Nathaniel R. Little, 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 patients | 258 |
|---|---|
| Services billed to Medicare | 679 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Critical care, first 30-74 minutes (99291)174 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)166 services
- Test to measure expiratory airflow and volume changes before and after medication administration (94060)50 services
- Test to examine how well the lungs exchange gases (94729)47 services
- Test to determine lung volumes using gas dilution or washout (94727)44 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%
- Arthritis50%
- Ischemic heart disease45%
- COPD44%
- Heart failure43%
Hospitals where Nathaniel R. Little works
Medicare's Facility Affiliation Data lists Nathaniel R. Little 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.
- AdventHealth AvistaLouisville, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 060103
- AdventHealth LittletonLittleton, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060113
- Centura Health-St Anthony HospitalLakewood, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060015
- Centura Health-St Anthony North Health CampusWestminster, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060104
- St Anthony Summit Medical CenterFrisco, CO · Acute Care Hospital · Emergency services: listed by Medicare · CCN 060118
Practice locations
Addresses where Nathaniel R. Little is enrolled with Medicare (CMS data updated October 2, 2026).
- 274 Union Blvd, Suite 200Lakewood, CO 80228 (303) 951‑0600
Group practices
Medicare enrollment lists Nathaniel R. Little as a member of this group (CMS data updated October 2, 2026).
- Critical Care Pulmonary and Sleep Associates Professional LLP63 clinicians in the group
Specialties
Find other Critical Care (Intensivists) doctors in Colorado →
Other critical care doctors in Lakewood
Clinicians with the same Medicare primary specialty in Lakewood, CO — not a recommendation.
Other clinicians in Critical Care Pulmonary and Sleep Associates Professional LLP
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871720748 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians