NPPES file of Aug 9, 2026

Marek M. Pienkowski, M.D., PH.D.

Allergy Physician · Knoxville, TN

Marek M. Pienkowski, M.D., PH.D. is an allergy physician with a practice address in Knoxville, Tennessee, and NPI 1659340610, issued on Mar 14, 2006. Check the license (Tennessee MD15320, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659340610
Name
Marek M. Pienkowski
Credential
M.D., PH.D.
Primary taxonomy
Allergy Physician 207KA0200X
License number
MD15320 TN
Self-reported in NPPES; status is on the state search
Practice location
7417 Kingston Pike, Knoxville, TN 37919
Phone
(865) 584-4112
Enumerated
Mar 14, 2006
Record last updated
Nov 12, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(865) 588-5140
Medicaid IDs
3006456 TN
3006457 TN
3006458 TN
30065459 TN
Medicare enrollment
Enrolled (PECOS I20111207000741); 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 7417 Kingston Pike

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

  1. Mariah Beem, LPC-MHSPMental Health Counselor1376408930
  2. Heather Carver, LPC-MHSPProfessional Counselor1376337899
  3. Amanda Gienow, LPC/MHSP(T)Mental Health Counselor1174405807
  4. Samarah NinisMental Health Counselor1003708769
  5. Fa Leasha Robinson, R.NHome Health Registered Nurse1174878805

Verify Marek M. Pienkowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license MD15320
    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
Open 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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43% fewer Medicare Part D claims than the average allergy physician in 2024

425 Medicare Part D claims for 109 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.

  1. Marek Pienkowski425
  2. Specialty average750

Most prescribed

  1. Hydroxychloroquine Sulfate56 claims
  2. Montelukast Sodium45 claims
  3. Xolair45 claims
  4. Fluticasone Propionate26 claims
  5. Albuterol Sulfate Hfa23 claims
  6. Colchicine21 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.

The MIPS final score for 2023 (Medicare payment program): 80.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score54.8
  2. Costout of 100 · 30%82.9
  3. Promoting interoperabilityout of 100 · 25%95.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Allergic Diseases Asthma And Immunology Clinic PCGreeneville, TN

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

Marek M. Pienkowski among 15 allergy physician records in Tennessee

Marek M. Pienkowski, M.D., PH.D. is one of 15 allergy physician records with a practice address in Tennessee. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 33% of them.

  • NPI issued2006 · 33% of these records are older, 33% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Record last updated2013 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy Physician providers in Tennessee

There are 15 allergy physician records in Tennessee.

The 8 allergy physician records with the nearest ZIP codes

  1. Steve Cole, M.D.Memphis, TN 381041952415424
  2. Chrishana Ogilvie, M.D.Germantown, TN 381381225256613
  3. Neil Wallen, M.D.Bristol, TN 376201326043373
  4. Ryan Sullivan, M.D.Mount Pleasant, TN 384741417085606
  5. Emily Campbell, M.D.Nashville, TN 372321699136515
  6. David Hagaman, MDNashville, TN 372321235221656
  7. Michael Dao, M.D.Nashville, TN 372171013983709
  8. William Ralph, MDNashville, TN 372031194830612

Common questions

What is Marek M. Pienkowski, M.D., PH.D.'s NPI number?

Marek M. Pienkowski, M.D., PH.D.'s National Provider Identifier (NPI) is 1659340610, issued on Mar 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marek M. Pienkowski, M.D., PH.D. located?

The NPPES record lists a practice address at 7417 Kingston Pike, Knoxville, TN, 37919. Phone: (865) 584-4112. Providers update this record themselves, so call before visiting.

How can I verify Marek M. Pienkowski, M.D., PH.D.'s license?

NPPES lists Tennessee license number MD15320, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marek M. Pienkowski, M.D., PH.D. prescribe under Medicare Part D?

In 2024, Marek M. Pienkowski, M.D., PH.D. had 425 Medicare Part D claims for 109 beneficiaries; the average among allergy physician prescribers was 750. Part D covers Medicare prescriptions only.

What is Marek M. Pienkowski, M.D., PH.D.'s MIPS final score?

The 2023 MIPS final score is 80.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.