Nicholas Ellefson, DO
NPI 1639699200 · Family Medicine Physician · Superior, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Ellefson, DO is a Family Medicine Physician provider in Superior, WI (NPI 1639699200).
Provider details
- NPI number
- 1639699200
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 66646 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
407 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 181 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 100 | $111 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 55 | $108 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 31 | $122 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 15 | $101 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 20 | 11 |
| Magnesium Sulfate | 20 | — |
| Furosemide | 18 | 12 |
| Methotrexate Sodiumbrand: Methotrexate | 15 | — |
| Cefdinir | 14 | 14 |
| Prednisone | 14 | 14 |
| Atorvastatin Calcium | 13 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-23
- Last updated
- 2020-06-19
- Certified
- 2020-06-19
Frequently asked questions
- What is Nicholas Ellefson's NPI number?
- Nicholas Ellefson's National Provider Identifier (NPI) is 1639699200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Ellefson's specialty?
- Nicholas Ellefson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Ellefson located?
- Nicholas Ellefson's practice location on file with NPPES is 3500 Tower Ave, Superior, WI 54880-4491.
- What is Nicholas Ellefson's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Ellefson is (715) 817-7100.
- Does Nicholas Ellefson accept Medicare?
- Nicholas Ellefson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Ellefson's NPI active?
- Yes — Nicholas Ellefson's NPI (1639699200) is active in the NPPES registry as of the last update on 2020-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.