NPPES file of Aug 9, 2026

Tiffani Marie Zichko, NP

Family Nurse Practitioner · Oak Ridge, TN

Tiffani Marie Zichko, NP is a family nurse practitioner with a practice address in Oak Ridge, Tennessee, and NPI 1588123806, issued on Mar 16, 2019. Check the license (Tennessee 24334, 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
1588123806
Name
Tiffani Marie Zichko
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
24334 TN
Self-reported in NPPES; status is on the state search
Practice location
80 Vermont Ave, Oak Ridge, TN 37830
Phone
(865) 482-4078
Enumerated
Mar 16, 2019
Record last updated
Sep 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
Q053000 TN
Medicare enrollment
Enrolled (PECOS I20191004002057); 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 80 Vermont Ave

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

  1. James Halama, M.D.Cardiovascular Disease Physician1174561971
  2. Jessica Hamby, APRN, FNP-BCNurse Practitioner1003474354
  3. Justin Harrell, DOCardiovascular Disease Physician1346744323
  4. Larry Justice, M.D.Cardiovascular Disease Physician1790721819
  5. William LorsonCardiovascular Disease Physician1558724401
  6. Victor McLaughlin, M.D.Cardiovascular Disease Physician1114972098

Verify Tiffani Marie Zichko 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 24334
    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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6.2 times the Medicare Part D claims of the average family nurse practitioner in 2024

8,153 Medicare Part D claims for 1,491 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.

  1. Tiffani Zichko8,153
  2. Specialty average1,305

Most prescribed

  1. Eliquis738 claims
  2. Metoprolol Succinate614 claims
  3. Atorvastatin Calcium555 claims
  4. Metoprolol Tartrate473 claims
  5. Carvedilol388 claims
  6. Clopidogrel313 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: $21.51

1 payment: food and beverage; the largest payer was Daxor Corporation. 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.

  1. Tiffani Zichko$21.51
  2. Specialty average$650.95

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

Bills Medicare through one group practice

  1. Covenant Medical Group IncOak Ridge, TN

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

Tiffani Marie Zichko among 9,060 family nurse practitioner records in Tennessee

Tiffani Marie Zichko, NP is one of 9,060 family nurse practitioner records with a practice address in Tennessee. 79% 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 61% of them.

  • NPI issued2019 · 61% of these records are older, 33% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2017 · median 2017 among the 5,523 with a school on file
  • Record last updated2020 · 40% 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 Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

53 family nurse practitioner records list a practice address in Oak Ridge

They are 53 of the 904 NPPES records with a practice address in Oak Ridge, and 9,060 family nurse practitioner records in Tennessee.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Kaye Bultemeier, NPOak Ridge, TN 378301861592362
  2. Mary Clemens, FNPOak Ridge, TN 378301093786253
  3. Jocelyn Garrett, FNPOak Ridge, TN 378301033350152
  4. Cheryl Goforth, APRN, BCOak Ridge, TN 378301477653970
  5. Claudia Hadden, FAMILY NURSE PRACTITOak Ridge, TN 378301275661753
  6. Portia Hutchinson, NP-COak Ridge, TN 378301336148519
  7. Tracy Jenkins, APNOak Ridge, TN 378301760705396
  8. Nancy Kile, FNPOak Ridge, TN 378301427007079

Common questions

What is Tiffani Marie Zichko, NP's NPI number?

Tiffani Marie Zichko, NP's National Provider Identifier (NPI) is 1588123806, issued on Mar 16, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Tiffani Marie Zichko, NP located?

The NPPES record lists a practice address at 80 Vermont Ave, Oak Ridge, TN, 37830. Phone: (865) 482-4078. Providers update this record themselves, so call before visiting.

How can I verify Tiffani Marie Zichko, NP's license?

NPPES lists Tennessee license number 24334, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.

How much does Tiffani Marie Zichko, NP prescribe under Medicare Part D?

In 2024, Tiffani Marie Zichko, NP had 8,153 Medicare Part D claims for 1,491 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.