William Nassetta, M.D.
NPI 1649473059 · Internal Medicine Physician · Baton Rouge, LA
William Nassetta, M.D. is a Internal Medicine Physician provider in Baton Rouge, LA (NPI 1649473059).
Provider details
- NPI number
- 1649473059
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 09874R (LA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2007-06-06
- Last updated
- 2023-03-07
Frequently asked questions
- What is William Nassetta's NPI number?
- William Nassetta's National Provider Identifier (NPI) is 1649473059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Nassetta's specialty?
- William Nassetta is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Nassetta located?
- William Nassetta's practice location on file with NPPES is 10059 N Reiger Rd, Baton Rouge, LA 70809-4559.
- What is William Nassetta's phone number?
- The practice phone number listed in the NPPES registry for William Nassetta is (225) 756-2673.
- Is William Nassetta's NPI active?
- Yes — William Nassetta's NPI (1649473059) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.