YI FENG MD
NPI 1639179229
Internal Medicine - Hematology & Oncology in Powell, TN

Active since July 26, 2005PECOS EnrolledAccepts Medicare Assignment
76.17/100
CMS Quality Rating
7650 DANNAHER DR STE 100, POWELL, TN 37849(865) 637-9330(865) 512-6748 Get Directions Write a Review

NPPES record last updated: April 21, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 9, 2021, Jul 14, 2016, Jun 30, 2016 (3 updates tracked since 2016).

About Yi Feng Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

YI FENG MD (NPI 1639179229) is an individual hematology & oncology provider in Powell, Tennessee, licensed in Tennessee (MD0000038385) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Methodist Medical Center Of Oak Ridge, and is a graduate of Other (1982).

NPPES Registry Identity

NPI1639179229
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameYI FENGCredential: MD
Location Address7650 DANNAHER DR STE 100Powell, TN 37849-4066
Mailing Address6016 Brookvale Ln Ste 200Knoxville, TN 37919-4092 · (865) 862-0998 · Fax (865) 544-1861
Fax(865) 512-6748
Sole ProprietorNo
Medical School CMSOtherGraduated 1982
Enumeration DateJuly 26, 2005
Last NPPES UpdateApril 21, 20253 updates tracked since enumeration
NPPES CertifiedApril 21, 2025
NPI 1639179229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses Licensed in TN · MD0000038385 Licensed in KY · 36528
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
7650 DANNAHER DR STE 100, Powell, TN 37849

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Yi Feng Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1759361355
PECOS Enrollment IDI20040723000546
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 74

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) Q0138
Ferumoxytol injection is a treatment for iron deficiency anemia, a condition where your body lacks enough iron. It is injected into your vein to increase iron levels, aiding in the production of healthy red blood cells. This treatment is not for ESRD patients.
53,550 services38 patients
Injection, darbepoetin alfa, 1 microgram (non-esrd use) J0881
Darbepoetin alfa injection is a medication used to treat anemia (low red blood cell count) often caused by chronic kidney disease or chemotherapy. It works by stimulating your body to produce more red blood cells, helping to increase your energy and well-being.
38,200 services27 patients
Injection, nivolumab, 1 mg J9299
Nivolumab is a medication given via injection, often used in cancer treatment. It works by helping your immune system fight the cancer cells. The dosage is measured in milligrams (mg), with 1 mg being a common dose.
36,580 services23 patients
Injection, pembrolizumab, 1 mg J9271
Pembrolizumab is a medication given via injection to help your body's immune system fight certain types of cancer. It's typically administered in a hospital or clinic by a healthcare professional.
34,800 services20 patients
Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
20,940 services148 patients
Injection, aprepitant, 1 mg J0185
Aprepitant injection is a medication used to prevent nausea and vomiting caused by chemotherapy. It works by blocking certain substances in the brain that trigger these symptoms. The dosage is based on your medical condition and response to treatment.
15,730 services23 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Methodist Medical Center Of Oak Ridge

Acute Care Hospitals · Oak Ridge, TN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440034
Location990 Oak Ridge Turnpike Box 529Oak Ridge, TN 37830 · Anderson County
Emergency services Birthing friendly

Fort Loudoun Medical Center

Acute Care Hospitals · Lenoir City, TN
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number440110
Location550 Fort Loudon Medical Center DrLenoir City, TN 37772 · Loudon County
Emergency services

Physicians Regional Medical Center

Acute Care Hospitals · Powell, TN
2/5 CMS rating
OwnershipProprietary
CMS Certification Number440120
Location7565 Dannaher Way PowellPowell, TN 37849 · Knox County
Emergency services Birthing friendly

Fort Sanders Regional Medical Center

Acute Care Hospitals · Knoxville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440125
Location1901 W Clinch AveKnoxville, TN 37916 · Knox County
Emergency services Birthing friendly

Parkwest Medical Center

Acute Care Hospitals · Knoxville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440173
Location9352 Park West BlvdKnoxville, TN 37923 · Knox County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37849 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$160.89 typical visit price
range $52.64 – $160.89
Typical copayment $40.22 (range $13.16 – $40.22)
Most-billed visit code 99205
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.17/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality90.43
Promoting Interoperability87
Improvement Activities40
Cost35.04

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
4 suppliers12 claims12 services$16.47 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
5 suppliers21 claims21 services$76.61 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
3 suppliers18 claims19 services$17.77 avg. paid by Medicare
Lightweight wheelchair K0003
DME-Wheelchairs · category DD000N
1 supplier11 claims11 services$32.25 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Family)
7650 DANNAHER DR STE 100
POWELL, TN 37849
Nurse Practitioner (Family)
7650 DANNAHER DR STE 100
POWELL, TN 37849
Nurse Practitioner
7650 DANNAHER DR STE 100
POWELL, TN 37849
Nurse Practitioner (Family)
7650 DANNAHER DR STE 100
POWELL, TN 37849
Nurse Practitioner (Family)
7650 DANNAHER DR STE 100
POWELL, TN 37849
Internal Medicine (Hematology & Oncology)
7650 DANNAHER DR STE 100
POWELL, TN 37849
Nurse Practitioner (Family)
7650 DANNAHER DR STE 100
POWELL, TN 37849

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Yi Feng's NPI number?

The NPI number for Yi Feng is 1639179229. It was assigned to this individual provider in the NPPES registry on July 26, 2005.

Where is Yi Feng located?

Yi Feng practices at 7650 Dannaher Dr Ste 100, Powell, TN 37849. The listed phone number is (865) 637-9330.

What is Yi Feng's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Yi Feng enrolled in Medicare?

Yes. Yi Feng is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Yi Feng accept?

Health plans from BlueCross BlueShield of Tennessee and UnitedHealthcare list Yi Feng as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Yi Feng affiliated with any hospitals?

According to CMS data, Yi Feng is affiliated with Methodist Medical Center Of Oak Ridge, Fort Loudoun Medical Center, Physicians Regional Medical Center, Fort Sanders Regional Medical Center and Parkwest Medical Center.

When was this NPI record last updated?

The NPPES record for Yi Feng was last updated on April 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.