William Guillen
NPI 1841765526 · Occupational Therapy Assistant · Waco, TX
William Guillen is a Occupational Therapy Assistant provider in Waco, TX (NPI 1841765526).
Provider details
- NPI number
- 1841765526
- Entity type
- Individual
- Primary specialty
- Occupational Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 215449 (TX)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2018-10-09
- Last updated
- 2018-10-09
Frequently asked questions
- What is William Guillen's NPI number?
- William Guillen's National Provider Identifier (NPI) is 1841765526, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Guillen's specialty?
- William Guillen is listed in the NPPES registry with a primary specialty of Occupational Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is William Guillen located?
- William Guillen's practice location on file with NPPES is 900 Washington Ave Ste 602, Waco, TX 76701-1283.
- What is William Guillen's phone number?
- The practice phone number listed in the NPPES registry for William Guillen is (254) 296-9792.
- Is William Guillen's NPI active?
- Yes — William Guillen's NPI (1841765526) is active in the NPPES registry as of the last update on 2018-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.