IndividualActive
Tim Messmer
NPI 1023489994 · Registered Nurse · Colton, CA
Tim Messmer is a Registered Nurse provider in Colton, CA (NPI 1023489994).
Provider details
- NPI number
- 1023489994
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 95068490 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(73/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
400 N Pepper Ave
Colton, CA 92324-1801
Phone: (909) 580-3144
Fax: (909) 580-2165
Street-level locationGet directions
Mailing address
400 N Pepper Ave
Colton, CA 92324-1801
Registry dates
- Enumerated
- 2015-10-16
- Last updated
- 2015-10-16
Frequently asked questions
- What is Tim Messmer's NPI number?
- Tim Messmer's National Provider Identifier (NPI) is 1023489994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tim Messmer's specialty?
- Tim Messmer is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Tim Messmer located?
- Tim Messmer's practice location on file with NPPES is 400 N Pepper Ave, Colton, CA 92324-1801.
- What is Tim Messmer's phone number?
- The practice phone number listed in the NPPES registry for Tim Messmer is (909) 580-3144.
- Is Tim Messmer's NPI active?
- Yes — Tim Messmer's NPI (1023489994) is active in the NPPES registry as of the last update on 2015-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.