Karen Messier, NP-C
NPI 1295110732 · Gerontology Nurse Practitioner · Ocala, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Messier, NP-C is a Gerontology Nurse Practitioner provider in Ocala, FL (NPI 1295110732).
Provider details
- NPI number
- 1295110732
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- APRN11013942 (FL)
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 tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
181 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 150 | $109 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 20 | $143 |
| Advance Care Planning, First 30 Minutes99497 | 11 | $62 |
Typical Medicare-allowed amounts for these services range $62–$143 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Levothyroxine Sodium | 12 |
| Rosuvastatin Calcium | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-07-27
- Last updated
- 2021-12-02
- Certified
- 2021-12-02
Frequently asked questions
- What is Karen Messier's NPI number?
- Karen Messier's National Provider Identifier (NPI) is 1295110732, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Messier's specialty?
- Karen Messier is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Messier located?
- Karen Messier's practice location on file with NPPES is 3231 Sw 34th Ave, Ocala, FL 34474-8489.
- What is Karen Messier's phone number?
- The practice phone number listed in the NPPES registry for Karen Messier is (352) 291-5881.
- Does Karen Messier accept Medicare?
- Karen Messier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Messier's NPI active?
- Yes — Karen Messier's NPI (1295110732) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.