Ewell Nelson, MD
NPI 1881634194 · Neurological Surgery Physician · Boulder, CO
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ewell Nelson, MD is a Neurological Surgery Physician provider in Boulder, CO (NPI 1881634194).
Provider details
- NPI number
- 1881634194
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 42524 (CO)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
709 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 | 227 | $129 |
| Insertion of Cage Or Mesh Device to Spine Bone and Disc Space During Spine Fusion22853 | 69 | $249 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 61 | $91 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 52 | $165 |
| Fusion of Additional Segment of Spine22614 | 36 | $377 |
| Fusion of Spine in Lower Back With Partial Removal of Spine Bone and Disc |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-07
- Last updated
- 2013-02-15
Frequently asked questions
- What is Ewell Nelson's NPI number?
- Ewell Nelson's National Provider Identifier (NPI) is 1881634194, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ewell Nelson's specialty?
- Ewell Nelson is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Ewell Nelson located?
- Ewell Nelson's practice location on file with NPPES is 4743 Arapahoe Ave, Boulder, CO 80303-1113.
- What is Ewell Nelson's phone number?
- The practice phone number listed in the NPPES registry for Ewell Nelson is (303) 938-5700.
- Does Ewell Nelson accept Medicare?
- Ewell Nelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ewell Nelson's NPI active?
- Yes — Ewell Nelson's NPI (1881634194) is active in the NPPES registry as of the last update on 2013-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.