OrganizationActive
Simpson Holzworth
NPI 1326219270 · Specialist · Riverview, MI
Simpson Holzworth is a Specialist organization in Riverview, MI (NPI 1326219270).
Provider details
- NPI number
- 1326219270
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- David Holzworth, President Physician(734) 479-7310
- License
- 5101006598 (MI)
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
14600 King Rd
Suite D
Riverview, MI 48193-7952
Phone: (734) 479-7310
Fax: (734) 479-7307
Street-level locationGet directions
Mailing address
14600 King Rd
Riverview, MI 48193-7952
Other names (DBA / former)
- Doing business as
- David G Holzworth DO PC
Registry dates
- Enumerated
- 2008-03-19
- Last updated
- 2008-08-13
Frequently asked questions
- What is Simpson Holzworth's NPI number?
- Simpson Holzworth's National Provider Identifier (NPI) is 1326219270, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Simpson Holzworth?
- Simpson Holzworth is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Simpson Holzworth located?
- Simpson Holzworth's practice location on file with NPPES is 14600 King Rd, Riverview, MI 48193-7952.
- What is Simpson Holzworth's phone number?
- The practice phone number listed in the NPPES registry for Simpson Holzworth is (734) 479-7310.
- Who is the authorized official for Simpson Holzworth?
- The authorized official listed on Simpson Holzworth's NPPES record is David Holzworth, President Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Simpson Holzworth's NPI active?
- Yes — Simpson Holzworth's NPI (1326219270) is active in the NPPES registry as of the last update on 2008-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.