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William Marsh, CRNA
NPI 1801814298 · Anesthesiology Physician · Newark, DE
William Marsh, CRNA is a Anesthesiology Physician provider in Newark, DE (NPI 1801814298).
Provider details
- NPI number
- 1801814298
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- No
- License
- R081112 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
111 Continental Dr
Suite 412
Newark, DE 19713-4306
Phone: (302) 709-4497
Fax: (302) 733-0854
Street-level locationGet directions
Mailing address
111 Continental Dr
Newark, DE 19713-4306
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2026-05-11
Frequently asked questions
- What is William Marsh's NPI number?
- William Marsh's National Provider Identifier (NPI) is 1801814298, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Marsh's specialty?
- William Marsh is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Marsh located?
- William Marsh's practice location on file with NPPES is 111 Continental Dr, Newark, DE 19713-4306.
- What is William Marsh's phone number?
- The practice phone number listed in the NPPES registry for William Marsh is (302) 709-4497.
- Is William Marsh's NPI active?
- Yes — William Marsh's NPI (1801814298) is active in the NPPES registry as of the last update on 2026-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.