James a Guigelaar MD PC
NPI 1881875763 · Internal Medicine Physician · Bay City, MI
James a Guigelaar MD PC is a Internal Medicine Physician organization in Bay City, MI (NPI 1881875763).
Provider details
- NPI number
- 1881875763
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- James Guigelaar, Owner(989) 893-9705
- License
- JG042006 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-11-19
- Last updated
- 2007-11-19
Frequently asked questions
- What is James a Guigelaar MD PC's NPI number?
- James a Guigelaar MD PC's National Provider Identifier (NPI) is 1881875763, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is James a Guigelaar MD PC?
- James a Guigelaar MD PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James a Guigelaar MD PC located?
- James a Guigelaar MD PC's practice location on file with NPPES is 200 S Wenona St, Bay City, MI 48706-8820.
- What is James a Guigelaar MD PC's phone number?
- The practice phone number listed in the NPPES registry for James a Guigelaar MD PC is (989) 893-9705.
- Who is the authorized official for James a Guigelaar MD PC?
- The authorized official listed on James a Guigelaar MD PC's NPPES record is James Guigelaar, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is James a Guigelaar MD PC's NPI active?
- Yes — James a Guigelaar MD PC's NPI (1881875763) is active in the NPPES registry as of the last update on 2007-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.