William Marshall, PA-C
NPI 1144833344 · Physician Assistant · New York, NY
William Marshall, PA-C is a Physician Assistant provider in New York, NY (NPI 1144833344).
Provider details
- NPI number
- 1144833344
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 025547 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
- 2020-08-26
- Last updated
- 2020-08-26
- Certified
- 2020-08-26
Frequently asked questions
- What is William Marshall's NPI number?
- William Marshall's National Provider Identifier (NPI) is 1144833344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Marshall's specialty?
- William Marshall is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Marshall located?
- William Marshall's practice location on file with NPPES is 630 W 168th St, New York, NY 10032-3725.
- What is William Marshall's phone number?
- The practice phone number listed in the NPPES registry for William Marshall is (212) 305-2500.
- Is William Marshall's NPI active?
- Yes — William Marshall's NPI (1144833344) is active in the NPPES registry as of the last update on 2020-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.