Regina Williamson, APRN
NPI 1558651323 · Family Nurse Practitioner · Chillicothe, OH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Regina Williamson, APRN is a Family Nurse Practitioner provider in Chillicothe, OH (NPI 1558651323).
Provider details
- NPI number
- 1558651323
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 023774 (OH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 46 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 60 | 15 |
| Atorvastatin Calcium | 49 | 13 |
| Amlodipine Besylate | 47 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 44 | 11 |
| Bupropion Hclbrand: Bupropion Xl | 40 | — |
| Lisinopril | 36 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$324 across 23 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
- 2011-04-14
- Last updated
- 2020-02-21
- Certified
- 2020-02-21
Frequently asked questions
- What is Regina Williamson's NPI number?
- Regina Williamson's National Provider Identifier (NPI) is 1558651323, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Regina Williamson's specialty?
- Regina Williamson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Regina Williamson located?
- Regina Williamson's practice location on file with NPPES is 72 N Plaza Blvd, Chillicothe, OH 45601-1757.
- What is Regina Williamson's phone number?
- The practice phone number listed in the NPPES registry for Regina Williamson is (740) 851-4400.
- Does Regina Williamson accept Medicare?
- Regina Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Regina Williamson's NPI active?
- Yes — Regina Williamson's NPI (1558651323) is active in the NPPES registry as of the last update on 2020-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.