William O'Shaughnessy, M.D.
NPI 1578528139 · Family Medicine Physician · Carson City, NV
William O'Shaughnessy, M.D. is a Family Medicine Physician provider in Carson City, NV (NPI 1578528139).
Provider details
- NPI number
- 1578528139
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2838 (NV)
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
20 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
- 2006-04-18
- Last updated
- 2010-02-23
Frequently asked questions
- What is William O'Shaughnessy's NPI number?
- William O'Shaughnessy's National Provider Identifier (NPI) is 1578528139, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William O'Shaughnessy's specialty?
- William O'Shaughnessy is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William O'Shaughnessy located?
- William O'Shaughnessy's practice location on file with NPPES is 1201 S Carson St, Carson City, NV 89701-5225.
- What is William O'Shaughnessy's phone number?
- The practice phone number listed in the NPPES registry for William O'Shaughnessy is (775) 885-4685.
- Is William O'Shaughnessy's NPI active?
- Yes — William O'Shaughnessy's NPI (1578528139) is active in the NPPES registry as of the last update on 2010-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.