Lillian Mess, MSN/NP
NPI 1811949159 · Family Nurse Practitioner · Port Huron, MI
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lillian Mess, MSN/NP is a Family Nurse Practitioner provider in Port Huron, MI (NPI 1811949159).
Provider details
- NPI number
- 1811949159
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN/NP
- Sex
- Female
- License
- 4704192213 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-05-16
- Last updated
- 2007-07-08
Frequently asked questions
- What is Lillian Mess's NPI number?
- Lillian Mess's National Provider Identifier (NPI) is 1811949159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lillian Mess's specialty?
- Lillian Mess is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lillian Mess located?
- Lillian Mess's practice location on file with NPPES is 1221 Pine Grove Ave, Port Huron, MI 48060-3511.
- What is Lillian Mess's phone number?
- The practice phone number listed in the NPPES registry for Lillian Mess is (810) 987-5000.
- Does Lillian Mess accept Medicare?
- Lillian Mess is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lillian Mess's NPI active?
- Yes — Lillian Mess's NPI (1811949159) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.