Karl Krieser, MD
NPI 1669098216 · Anesthesiology Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Krieser, MD is a Anesthesiology Physician provider in Grand Rapids, MI (NPI 1669098216).
Provider details
- NPI number
- 1669098216
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301511805 (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
6 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
- 2020-06-19
- Last updated
- 2025-10-13
- Certified
- 2025-10-13
Frequently asked questions
- What is Karl Krieser's NPI number?
- Karl Krieser's National Provider Identifier (NPI) is 1669098216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Krieser's specialty?
- Karl Krieser is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Krieser located?
- Karl Krieser's practice location on file with NPPES is 100 Michigan St Ne, Grand Rapids, MI 49503-2560.
- What is Karl Krieser's phone number?
- The practice phone number listed in the NPPES registry for Karl Krieser is (616) 391-1510.
- Does Karl Krieser accept Medicare?
- Karl Krieser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Krieser's NPI active?
- Yes — Karl Krieser's NPI (1669098216) is active in the NPPES registry as of the last update on 2025-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.