NPPES file of Aug 9, 2026

Nathan Eric Schrock, MD

Hematology & Oncology Physician · Knoxville, TN

Nathan Eric Schrock, MD is a hematology & oncology physician with a practice address in Knoxville, Tennessee, and NPI 1679573372, issued on Jul 26, 2005. Check the license (Tennessee MD0000037305, 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
1679573372
Name
Nathan Eric Schrock
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
MD0000037305 TN
37971 KY
Self-reported in NPPES; status is on the state search
Practice location
101 Blount Ave, Knoxville, TN 37920
Phone
(865) 632-5122
Enumerated
Jul 26, 2005
Record last updated
Apr 1, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(865) 632-5116
Medicaid ID
3884972 TN
Medicare enrollment
Enrolled (PECOS I20040305000292); accepts Medicare assignment
Medical or professional school
University Of Mississippi School Of Medicine, 1997
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 101 Blount Ave

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

  1. William Hall, M.D.Vascular Surgery Physician1073597423

Verify Nathan Eric Schrock 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 MD0000037305
    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

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22% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,071 Medicare Part D claims for 228 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims. 21 claims were for opioids.

  1. Nathan Schrock1,071
  2. Specialty average877

Most prescribed

  1. Anastrozole105 claims
  2. Ondansetron Hcl93 claims
  3. Eliquis88 claims
  4. Prochlorperazine Maleate80 claims
  5. Prednisone36 claims
  6. Hydroxyurea32 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): 95.7 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 score85.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $4,731.21

229 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nathan Schrock$4,731.21
  2. Specialty average$7,481.41

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. University Health System, Inc.Knoxville, TN

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

Nathan Eric Schrock among 273 hematology & oncology physician records in Tennessee

Nathan Eric Schrock, MD is one of 273 hematology & oncology physician records with a practice address in Tennessee. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1997 · median 2004 among the 223 with a school on file
  • Record last updated2008 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Tennessee

There are 273 hematology & oncology physician records in Tennessee.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Omar Alsharif, MDKnoxville, TN 379201548758527
  2. Ardy Davarifar, MD/PHDKnoxville, TN 379201205221603
  3. Ronald Lands, MDKnoxville, TN 379201982601811
  4. Stephen Miller, M.D.Knoxville, TN 379201841302288
  5. Susan Newman, M.D.Knoxville, TN 379201700984010
  6. Amith Rao, MDKnoxville, TN 379201023680535
  7. Lindsay Rumberger Rivera, MDKnoxville, TN 379201235440843
  8. Mackenzie YoungKnoxville, TN 379201659218576

Common questions

What is Nathan Eric Schrock, MD's NPI number?

Nathan Eric Schrock, MD's National Provider Identifier (NPI) is 1679573372, issued on Jul 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Eric Schrock, MD located?

The NPPES record lists a practice address at 101 Blount Ave, Knoxville, TN, 37920. Phone: (865) 632-5122. Providers update this record themselves, so call before visiting.

How can I verify Nathan Eric Schrock, MD's license?

NPPES lists Tennessee license number MD0000037305, 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 Nathan Eric Schrock, MD prescribe under Medicare Part D?

In 2024, Nathan Eric Schrock, MD had 1,071 Medicare Part D claims for 228 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Nathan Eric Schrock, MD's MIPS final score?

The 2023 MIPS final score is 95.7 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.