Jennifer Sizemore, MSN, RN, PMHNP-BC
NPI 1255965919 · Psychiatric/Mental Health Nurse Practitioner · Marianna, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Sizemore, MSN, RN, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner provider in Marianna, FL (NPI 1255965919).
Provider details
- NPI number
- 1255965919
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, RN, PMHNP-BC
- Sex
- Female
- Sole proprietor
- Yes
- License
- APRN11008217 (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 tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
55 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 55 | $91 |
Typical Medicare-allowed amounts for these services range $91–$91 (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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Duloxetine Hcl | 49 | 14 |
| Quetiapine Fumarate | 39 | 12 |
| Oxcarbazepine | 33 | — |
| Fluoxetine Hcl | 31 | — |
| Benztropine Mesylate | 28 | 11 |
| Lamotrigine | 23 | — |
| Hydroxyzine Pamoate | 23 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,337 across 120 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 90 Southern Oak DrDothan, AL 36301-7643Phone: (850) 658-2569Fax: (850) 303-6006
- 612 Byrd Parker Dr Ste BWewahitchka, FL 32465-3304Phone: (850) 693-4171Fax: (850) 303-6006
Registry dates
- Enumerated
- 2020-03-02
- Last updated
- 2025-10-15
- Certified
- 2025-10-15
Frequently asked questions
- What is Jennifer Sizemore's NPI number?
- Jennifer Sizemore's National Provider Identifier (NPI) is 1255965919, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Sizemore's specialty?
- Jennifer Sizemore is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jennifer Sizemore located?
- Jennifer Sizemore's practice location on file with NPPES is 4469 Clinton St Ste B, Marianna, FL 32446-3453.
- What is Jennifer Sizemore's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Sizemore is (850) 693-4171.
- Does Jennifer Sizemore accept Medicare?
- Jennifer Sizemore is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Sizemore's NPI active?
- Yes — Jennifer Sizemore's NPI (1255965919) is active in the NPPES registry as of the last update on 2025-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.