William Ericson-Neilsen, M.D.
NPI 1285976076 · Anesthesiology Physician · Jefferson, LA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Ericson-Neilsen, M.D. is a Anesthesiology Physician provider in Jefferson, LA (NPI 1285976076).
Provider details
- NPI number
- 1285976076
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 7 Independence PT Ste 300Greenville, SC 29615-4569Phone: (864) 522-3700Fax: (864) 522-3705
Registry dates
- Enumerated
- 2013-03-20
- Last updated
- 2024-12-12
- Certified
- 2024-12-12
Frequently asked questions
- What is William Ericson-Neilsen's NPI number?
- William Ericson-Neilsen's National Provider Identifier (NPI) is 1285976076, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Ericson-Neilsen's specialty?
- William Ericson-Neilsen is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Ericson-Neilsen located?
- William Ericson-Neilsen's practice location on file with NPPES is 1514 Jefferson Hwy, Jefferson, LA 70121-2429.
- What is William Ericson-Neilsen's phone number?
- The practice phone number listed in the NPPES registry for William Ericson-Neilsen is (504) 842-3000.
- Does William Ericson-Neilsen accept Medicare?
- William Ericson-Neilsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Ericson-Neilsen's NPI active?
- Yes — William Ericson-Neilsen's NPI (1285976076) is active in the NPPES registry as of the last update on 2024-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.