NPPES file of Aug 9, 2026

Yi Feng, MD

Hematology & Oncology Physician · Powell, TN

Yi Feng, MD is a hematology & oncology physician with a practice address in Powell, Tennessee, and NPI 1639179229, issued on Jul 26, 2005. Check the license (Tennessee MD0000038385, 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
1639179229
Name
Yi Feng
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
MD0000038385 TN
36528 KY
Self-reported in NPPES; status is on the state search
Practice location
7650 Dannaher Dr Ste 100, Powell, TN 37849
Phone
(865) 637-9330
Enumerated
Jul 26, 2005
Record last updated
Apr 21, 2025
Fax
(865) 512-6748
Medicare enrollment
Enrolled (PECOS I20040723000546); 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 7650 Dannaher Dr Ste 100

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

  1. Jennifer Berry, ANP-BCNurse Practitioner1144544636
  2. Lainey Briggs, FNPFamily Nurse Practitioner1083039788
  3. Natalie Hurst, RN, MSN, CCRN, FNP-CFamily Nurse Practitioner1871145045
  4. Lindsay Knox, NURSE PRACTITIONERFamily Nurse Practitioner1336910074
  5. Courtney Roth, NPFamily Nurse Practitioner1033622725
  6. Kathryn Shelton, FNP-BCFamily Nurse Practitioner1528452679

Verify Yi Feng 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 MD0000038385
    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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2.4 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,136 Medicare Part D claims for 399 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.

  1. Yi Feng2,136
  2. Specialty average877

Most prescribed

  1. Anastrozole175 claims
  2. Potassium Chloride139 claims
  3. Warfarin Sodium120 claims
  4. Pantoprazole Sodium94 claims
  5. Eliquis91 claims
  6. Hydroxyurea68 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score90.4
  2. Costout of 100 · 30%35.0
  3. Promoting interoperabilityout of 100 · 25%87.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $7,107.37

217 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. 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. Yi Feng$7,107.37
  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. Tennessee Cancer Specialists PLLCPowell, TN

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

Yi Feng among 273 hematology & oncology physician records in Tennessee

Yi Feng, 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
  • Graduated1982 · median 2004 among the 223 with a school on file
  • Record last updated2025 · 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. Richard Antonucci, MDPowell, TN 378491841290541
  2. Mitchell Martin, MDPowell, TN 378491639179708
  3. Feras Abdul Khalek, M.D.Sevierville, TN 378621497079008
  4. Joseph Iobst, MDSevierville, TN 378621366407819
  5. John Foust, MDOak Ridge, TN 378301205834835
  6. Catherine Murphree, MDOak Ridge, TN 378301578067286
  7. Thomas Repine, MDOak Ridge, TN 378301245324938
  8. Trena Stoute, MDOak Ridge, TN 378301588003719

Common questions

What is Yi Feng, MD's NPI number?

Yi Feng, MD's National Provider Identifier (NPI) is 1639179229, issued on Jul 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Yi Feng, MD located?

The NPPES record lists a practice address at 7650 Dannaher Dr Ste 100, Powell, TN, 37849. Phone: (865) 637-9330. Providers update this record themselves, so call before visiting.

How can I verify Yi Feng, MD's license?

NPPES lists Tennessee license number MD0000038385, 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 Yi Feng, MD prescribe under Medicare Part D?

In 2024, Yi Feng, MD had 2,136 Medicare Part D claims for 399 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Yi Feng, MD's MIPS final score?

The 2023 MIPS final score is 76.2 of 100, reported for the practice group. 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.