William S Marsh III, DO, PA
NPI 1063440014 · Physical Medicine & Rehabilitation Physician · Killeen, TX
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William S Marsh III, DO, PA is a Physical Medicine & Rehabilitation Physician organization in Killeen, TX (NPI 1063440014).
Provider details
- NPI number
- 1063440014
- Entity type
- Organization
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Marsh, Owner(254) 519-1900
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Urgent Care Clinic/Center261QU0200X
Ambulatory Health Care Facilities
- Family Medicine Physician207Q00000X
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
- 2006-06-29
- Last updated
- 2022-08-08
- Certified
- 2022-08-08
Frequently asked questions
- What is William S Marsh III, DO, PA's NPI number?
- William S Marsh III, DO, PA's National Provider Identifier (NPI) is 1063440014, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William S Marsh III, DO, PA?
- William S Marsh III, DO, PA is classified in the NPPES registry as Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is William S Marsh III, DO, PA located?
- William S Marsh III, DO, PA's practice location on file with NPPES is 5320 E Central Texas Expy Ste 105, Killeen, TX 76543-5516.
- What is William S Marsh III, DO, PA's phone number?
- The practice phone number listed in the NPPES registry for William S Marsh III, DO, PA is (254) 519-1900.
- Does William S Marsh III, DO, PA accept Medicare?
- William S Marsh III, DO, PA is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for William S Marsh III, DO, PA?
- The authorized official listed on William S Marsh III, DO, PA's NPPES record is William Marsh, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William S Marsh III, DO, PA's NPI active?
- Yes — William S Marsh III, DO, PA's NPI (1063440014) is active in the NPPES registry as of the last update on 2022-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.