Matthew Keifer, MD
NPI 1033209903 · Preventive Medicine/Occupational Environmental Medicine Physician · Marshfield, WI
Matthew Keifer, MD is a Preventive Medicine/Occupational Environmental Medicine Physician provider in Marshfield, WI (NPI 1033209903).
Provider details
- NPI number
- 1033209903
- Entity type
- Individual
- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00020882 (WA)
Specialties & taxonomies
- Preventive Medicine/Occupational Environmental Medicine PhysicianPrimary2083P0500XLicense 55074 (WI)
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
- 2006-10-13
- Last updated
- 2011-04-18
Frequently asked questions
- What is Matthew Keifer's NPI number?
- Matthew Keifer's National Provider Identifier (NPI) is 1033209903, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Keifer's specialty?
- Matthew Keifer is listed in the NPPES registry with a primary specialty of Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Keifer located?
- Matthew Keifer's practice location on file with NPPES is 1000 N Oak Ave, Marshfield, WI 54449-5703.
- What is Matthew Keifer's phone number?
- The practice phone number listed in the NPPES registry for Matthew Keifer is (715) 387-5511.
- Is Matthew Keifer's NPI active?
- Yes — Matthew Keifer's NPI (1033209903) is active in the NPPES registry as of the last update on 2011-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.