Memorial Hospital
NPI 1558432237 · Physician Assistant · Owosso, MI
Memorial Hospital is a Physician Assistant organization in Owosso, MI (NPI 1558432237).
Provider details
- NPI number
- 1558432237
- Entity type
- Organization
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Organization subpart
- No
- Authorized official
- Mike Grisdela, Cfo(989) 723-5211
- License
- 4301041531 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
Other names (DBA / former)
- Former legal business name
- Memorial Healthcare
Registry dates
- Enumerated
- 2006-11-13
- Last updated
- 2025-09-11
Frequently asked questions
- What is Memorial Hospital's NPI number?
- Memorial Hospital's National Provider Identifier (NPI) is 1558432237, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Memorial Hospital?
- Memorial Hospital is classified in the NPPES registry as Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Memorial Hospital located?
- Memorial Hospital's practice location on file with NPPES is 802 W King St, Owosso, MI 48867-2100.
- What is Memorial Hospital's phone number?
- The practice phone number listed in the NPPES registry for Memorial Hospital is (989) 729-4041.
- Who is the authorized official for Memorial Hospital?
- The authorized official listed on Memorial Hospital's NPPES record is Mike Grisdela, Cfo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Memorial Hospital's NPI active?
- Yes — Memorial Hospital's NPI (1558432237) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.