Nikki Barker, DNP, APRN-CNP
NPI 1316584253 · Family Nurse Practitioner · Marietta, OK
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nikki Barker, DNP, APRN-CNP is a Family Nurse Practitioner provider in Marietta, OK (NPI 1316584253).
Provider details
- NPI number
- 1316584253
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, APRN-CNP
- Sex
- Female
- Sole proprietor
- No
- License
- 109538 (OK)
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 tenure33% of score
6 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 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 57 | 20 |
| Atorvastatin Calcium | 56 | 16 |
| Methylprednisolone | 47 | 41 |
| Lisinopril | 41 | 13 |
| Amlodipine Besylate | 37 | 14 |
| Duloxetine Hcl | 34 | — |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16 across 1 record (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
- 2019-12-10
- Last updated
- 2025-09-16
- Certified
- 2025-09-16
Frequently asked questions
- What is Nikki Barker's NPI number?
- Nikki Barker's National Provider Identifier (NPI) is 1316584253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nikki Barker's specialty?
- Nikki Barker is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nikki Barker located?
- Nikki Barker's practice location on file with NPPES is 301 Wanda St, Marietta, OK 73448-1229.
- What is Nikki Barker's phone number?
- The practice phone number listed in the NPPES registry for Nikki Barker is (580) 276-2400.
- Does Nikki Barker accept Medicare?
- Nikki Barker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nikki Barker's NPI active?
- Yes — Nikki Barker's NPI (1316584253) is active in the NPPES registry as of the last update on 2025-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.