NPPES file of Aug 9, 2026

John Patrick McCullough, FNP-C

Nurse Practitioner · Knoxville, TN

John Patrick McCullough, FNP-C is a nurse practitioner with a practice address in Knoxville, Tennessee, and NPI 1538854658, issued on Apr 5, 2023. Check the license (Tennessee 33790, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538854658
Name
John Patrick McCullough
Credential
FNP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License number
33790 TN
Self-reported in NPPES; status is on the state search
Practice location
501 20TH St Ste 503, Knoxville, TN 37916
Phone
(865) 331-4321
Enumerated
Apr 5, 2023
Record last updated
Jul 8, 2026
Fax
(865) 374-2078
Medicaid ID
Q082264 TN
Medicare enrollment
Enrolled (PECOS I20230503002283); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 501 20TH St Ste 503

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rocco Cannistraro, MDVascular Neurology Physician1427435072
  2. Charles Fisher, D.O.Physical Medicine & Rehabilitation Physician1972995603
  3. Michael Flynn, PA-CPhysician Assistant1003275132
  4. Jiajia Huang, APRN, NP-CFamily Nurse Practitioner1003451378
  5. Livana Koznesoff, MDVascular Neurology Physician1548729411
  6. Dina Miller, FNPFamily Nurse Practitioner1942604269

Verify John Patrick McCullough in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license 33790
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.4 times the Medicare Part D claims of the average nurse practitioner in 2024

3,789 Medicare Part D claims for 865 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 66 claims were for opioids.

  1. John McCullough3,789
  2. Specialty average1,109

Most prescribed

  1. Fluticasone Propionate179 claims
  2. Levothyroxine Sodium154 claims
  3. Atorvastatin Calcium99 claims
  4. Gabapentin92 claims
  5. Losartan Potassium86 claims
  6. Albuterol Sulfate Hfa84 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: $387.22

17 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John McCullough$387.22
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Covenant Medical Group IncOak Ridge, TN
  2. UT Urgent Care Centers, LLCKnoxville, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

275 nurse practitioner records list a practice address in Knoxville

They are 275 of the 14,339 NPPES records with a practice address in Knoxville, and 2,303 nurse practitioner records in Tennessee.

Other nurse practitioner records in Tennessee

  1. Keshia AbbottCookeville, TN1700327236
  2. Tracie Abel, NPGermantown, TN1437510773
  3. Jennifer Abelson, NPClarksville, TN1326505330
  4. Katrina Aberdeen, APRN-BCKnoxville, TN1194764746
  5. Kristina Abolins, NPMurfreesboro, TN1790163061
  6. Lovely Abraham, APN,BC,GNPNashville, TN1508957267
  7. Aprille Abston-Turns, F.N.P.Germantown, TN1669547634
  8. Joanna Adams, NPKnoxville, TN1013353176
  9. Mary Adams, NPJackson, TN1346288503
  10. Nikki Adams, NPCookeville, TN1891778817

Common questions

What is John Patrick McCullough, FNP-C's NPI number?

John Patrick McCullough, FNP-C's National Provider Identifier (NPI) is 1538854658, issued on Apr 5, 2023. An NPI identifies a provider in billing; it is not a license.

Where is John Patrick McCullough, FNP-C located?

The NPPES record lists a practice address at 501 20TH St Ste 503, Knoxville, TN, 37916. Phone: (865) 331-4321. Providers update this record themselves, so call before visiting.

How can I verify John Patrick McCullough, FNP-C's license?

NPPES lists Tennessee license number 33790, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.

How much does John Patrick McCullough, FNP-C prescribe under Medicare Part D?

In 2024, John Patrick McCullough, FNP-C had 3,789 Medicare Part D claims for 865 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.