Nikki Kristin Barker, DNP, APRN-CNP
Family Nurse Practitioner · Marietta, OK
Nikki Kristin Barker, DNP, APRN-CNP is a family nurse practitioner with a practice address in Marietta, Oklahoma, and NPI 1316584253, issued on Dec 10, 2019. Check the license (Oklahoma 109538, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nikki Kristin Barker
- Credential
- DNP, APRN-CNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 109538 OK
Self-reported in NPPES; status is on the state search - Practice location
- 301 Wanda St, Marietta, OK 73448
- Phone
- (580) 276-2400
- Enumerated
- Dec 10, 2019
- Record last updated
- Sep 16, 2025
- Fax
- (580) 276-4358
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,711 in Oklahoma → Look up another NPI →
Also registered at 301 Wanda St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stephen Hutchins, M.D.Family Medicine Physician1073564597
- John O'Connor, D.O.Family Medicine Physician1831140193
- Patricia Owens, FNPNurse Practitioner1871544338
- Larry Powell, M.D.Family Medicine Physician1144271669
Verify Nikki Kristin Barker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 109538Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,234 Medicare Part D claims for 198 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 23 claims were for opioids.
Most prescribed
- Levothyroxine Sodium57 claims
- Atorvastatin Calcium56 claims
- Methylprednisolone47 claims
- Lisinopril41 claims
- Amlodipine Besylate37 claims
- Duloxetine Hcl34 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $16.35
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Nikki Kristin Barker among 2,711 family nurse practitioner records in Oklahoma
Nikki Kristin Barker, DNP, APRN-CNP is one of 2,711 family nurse practitioner records with a practice address in Oklahoma. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 54% of them.
- NPI issued2019 · 54% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2025 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 family nurse practitioner records list a practice address in Marietta
They are 2 of the 33 NPPES records with a practice address in Marietta, and 2,711 family nurse practitioner records in Oklahoma.
All 2,711 in Oklahoma → Every provider in Marietta → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Komal Noor Uppal, FNPMarietta, OK 734481275266108
- Jennifer Bell, NPKingston, OK 734391407663073
- Glenda Cross, APRN-CNPKingston, OK 734391649412263
- Tressa Matchen, ARNP-CNPKingston, OK 734391053774794
- Sandy McAlister, ARNPKingston, OK 734391699621888
- Toni McLemore, APRN-CNPKingston, OK 734391376435446
- Kelsey Bates, APRN-CNPHealdton, OK 734381912510777
- Jessica Perkins, APRN-CNPHealdton, OK 734381770373466
Common questions
What is Nikki Kristin Barker, DNP, APRN-CNP's NPI number?
Nikki Kristin Barker, DNP, APRN-CNP's National Provider Identifier (NPI) is 1316584253, issued on Dec 10, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nikki Kristin Barker, DNP, APRN-CNP located?
The NPPES record lists a practice address at 301 Wanda St, Marietta, OK, 73448. Phone: (580) 276-2400. Providers update this record themselves, so call before visiting.
How can I verify Nikki Kristin Barker, DNP, APRN-CNP's license?
NPPES lists Oklahoma license number 109538, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Nikki Kristin Barker, DNP, APRN-CNP prescribe under Medicare Part D?
In 2024, Nikki Kristin Barker, DNP, APRN-CNP had 1,234 Medicare Part D claims for 198 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.