Lars Ensign, MD
NPI 1750389862 · Emergency Medicine Physician · South Lake Tahoe, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lars Ensign, MD is a Emergency Medicine Physician provider in South Lake Tahoe, CA (NPI 1750389862).
Provider details
- NPI number
- 1750389862
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 9855 (NV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
213 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 55 | $100 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 39 | $172 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 25 | $84 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 22 | $8 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 22 | $136 |
| Emergency Department Visit With Moderate Level of Medical Decision Making |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 17 | 17 |
| Cephalexin | 16 | 16 |
| Prednisone | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (3)
- 1501-A Kirkwood Meadows DrKirkwood, CA 95646Phone: (209) 258-7236
- 3860 Saddle RdSouth Lake Tahoe, CA 96150-8673Phone: (530) 543-5575
- 1107 US Highway 395 NGardnerville, NV 89410-5304Phone: (775) 782-1500
Registry dates
- Enumerated
- 2005-07-12
- Last updated
- 2018-03-17
Frequently asked questions
- What is Lars Ensign's NPI number?
- Lars Ensign's National Provider Identifier (NPI) is 1750389862, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lars Ensign's specialty?
- Lars Ensign is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lars Ensign located?
- Lars Ensign's practice location on file with NPPES is 2170 South Ave, South Lake Tahoe, CA 96150-7026.
- What is Lars Ensign's phone number?
- The practice phone number listed in the NPPES registry for Lars Ensign is (530) 541-3420.
- Does Lars Ensign accept Medicare?
- Lars Ensign is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lars Ensign's NPI active?
- Yes — Lars Ensign's NPI (1750389862) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.