Leslie B. Littlefield, MD
NPI 1891181616ActiveIndividual· Internal Medicine, Critical Care Medicine· Sacramento, CA
Internal Medicine, Critical Care Medicine (MD) with Dignity Health Medical Foundation and 2 other groups, practicing in Sacramento, California. Medicare paid $31,447 for services to 164 patients in 2024. Lists Mercy General Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1891181616 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 8, 2015 |
| Last updated in NPPES | Oct 6, 2026 |
| Certified by provider | Oct 6, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | A150611 | CA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 174778 | MT |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 80778 | AZ |
| Internal Medicine, Critical Care Medicine | 207RC0200X | ME179925 | FL |
| Internal Medicine, Critical Care Medicine | 207RC0200X | MD2026-0718 | NM |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Critical Care (Intensivists) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 164 |
|---|---|
| Services billed | 250 across 20 procedure codes |
| Paid by Medicare | $31,447 |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Critical Care (Intensivists) |
| Secondary specialties | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical groups
- Dignity Health Medical FoundationFolsom, CA · 1,184 clinicians
- Northbay Physicians Surgery Center, LLCFairfield, CA · 324 clinicians
- Tp-Health Ca PCAnaheim, CA · 2 clinicians
Hospital affiliations
- Mercy General HospitalSacramento, CA
- Mercy Hospital of FolsomFolsom, CA
- Mercy San Juan Medical CenterCarmichael, CA
- Northbay Medical CenterFairfield, CA
- Sierra Nevada Memorial HospitalGrass Valley, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 54 critical care physicians in Sacramento · All critical care physicians in California