Shiawassee Anesthesia Services, P.C.
NPI 1578573960 · Anesthesiology Physician · Owosso, MI
Shiawassee Anesthesia Services, P.C. is a Anesthesiology Physician organization in Owosso, MI (NPI 1578573960).
Provider details
- NPI number
- 1578573960
- Entity type
- Organization
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- David Louwsma, Doctor(810) 635-7453
- License
- 5101011005 (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
- 2006-08-08
- Last updated
- 2020-08-22
Frequently asked questions
- What is Shiawassee Anesthesia Services, P.C.'s NPI number?
- Shiawassee Anesthesia Services, P.C.'s National Provider Identifier (NPI) is 1578573960, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Shiawassee Anesthesia Services, P.C.?
- Shiawassee Anesthesia Services, P.C. is classified in the NPPES registry as Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Shiawassee Anesthesia Services, P.C. located?
- Shiawassee Anesthesia Services, P.C.'s practice location on file with NPPES is 826 W King St, Owosso, MI 48867-2120.
- What is Shiawassee Anesthesia Services, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Shiawassee Anesthesia Services, P.C. is (810) 635-7453.
- Who is the authorized official for Shiawassee Anesthesia Services, P.C.?
- The authorized official listed on Shiawassee Anesthesia Services, P.C.'s NPPES record is David Louwsma, Doctor. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Shiawassee Anesthesia Services, P.C.'s NPI active?
- Yes — Shiawassee Anesthesia Services, P.C.'s NPI (1578573960) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.