Allyn Sisson, FNP
NPI 1205589157 · Family Nurse Practitioner · Meridian, MS
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allyn Sisson, FNP is a Family Nurse Practitioner provider in Meridian, MS (NPI 1205589157).
Provider details
- NPI number
- 1205589157
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 905115 (MS)
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
4 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,954 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 1,152 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,054 | $98 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 147 | $69 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 127 | $8 |
| Magnesium Level83735 | 102 | $7 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 297 | 135 |
| Carvedilol | 288 | 109 |
| Metoprolol Succinate | 276 | 122 |
| Hydralazine Hcl | 230 | 76 |
| Nebivolol Hcl | 220 | 83 |
| Furosemide | 206 | 95 |
| Apixabanbrand: Eliquis | 182 | 65 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$776 across 48 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
Registry dates
- Enumerated
- 2022-02-01
- Last updated
- 2022-02-01
- Certified
- 2022-01-21
Frequently asked questions
- What is Allyn Sisson's NPI number?
- Allyn Sisson's National Provider Identifier (NPI) is 1205589157, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allyn Sisson's specialty?
- Allyn Sisson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Allyn Sisson located?
- Allyn Sisson's practice location on file with NPPES is 4909 Great River Drive, Meridian, MS 39305.
- What is Allyn Sisson's phone number?
- The practice phone number listed in the NPPES registry for Allyn Sisson is (601) 282-8980.
- Does Allyn Sisson accept Medicare?
- Allyn Sisson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allyn Sisson's NPI active?
- Yes — Allyn Sisson's NPI (1205589157) is active in the NPPES registry as of the last update on 2022-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.