William Katz, MD
NPI 1013024140 · Sleep Medicine (Internal Medicine) Physician · Wyoming, MI
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Katz, MD is a Sleep Medicine (Internal Medicine) Physician provider in Wyoming, MI (NPI 1013024140).
Provider details
- NPI number
- 1013024140
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301044867 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
- 2006-08-24
- Last updated
- 2010-06-22
Frequently asked questions
- What is William Katz's NPI number?
- William Katz's National Provider Identifier (NPI) is 1013024140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Katz's specialty?
- William Katz is listed in the NPPES registry with a primary specialty of Sleep Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William Katz located?
- William Katz's practice location on file with NPPES is 2093 Health Dr Sw, Wyoming, MI 49519.
- What is William Katz's phone number?
- The practice phone number listed in the NPPES registry for William Katz is (616) 459-3158.
- Does William Katz accept Medicare?
- William Katz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Katz's NPI active?
- Yes — William Katz's NPI (1013024140) is active in the NPPES registry as of the last update on 2010-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.