IndividualActive
William Sisung
NPI 1841613585 · Psychologist · Plymouth, MI
William Sisung is a Psychologist provider in Plymouth, MI (NPI 1841613585).
Provider details
- NPI number
- 1841613585
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6361007661 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(76/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
595 Forest Ave
Plymouth, MI 48170-1775
Phone: (734) 972-8555
Street-level locationGet directions
Mailing address
1320 Kingwood St
Ypsilanti, MI 48197-2144
Registry dates
- Enumerated
- 2014-01-31
- Last updated
- 2022-08-29
- Certified
- 2022-08-29
Frequently asked questions
- What is William Sisung's NPI number?
- William Sisung's National Provider Identifier (NPI) is 1841613585, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Sisung's specialty?
- William Sisung is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is William Sisung located?
- William Sisung's practice location on file with NPPES is 595 Forest Ave, Plymouth, MI 48170-1775.
- What is William Sisung's phone number?
- The practice phone number listed in the NPPES registry for William Sisung is (734) 972-8555.
- Is William Sisung's NPI active?
- Yes — William Sisung's NPI (1841613585) is active in the NPPES registry as of the last update on 2022-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.