MICHAEL BRIAN FLOWERS MD
NPI 1669409645
Internal Medicine in Knoxville, TN

Active since June 27, 2006PECOS EnrolledAccepts Medicare Assignment
2240 SUTHERLAND AVE, SUITE 104, KNOXVILLE, TN 37919(865) 909-0090(865) 909-9883 Get Directions Write a Review

NPPES record last updated: May 27, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michael Brian Flowers Md NPPES

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

MICHAEL BRIAN FLOWERS MD (NPI 1669409645) is an individual internal medicine provider in Knoxville, Tennessee, licensed in Tennessee (37097) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Methodist Medical Center Of Oak Ridge, and is a graduate of Other (2001).

NPPES Registry Identity

NPI1669409645
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMICHAEL BRIAN FLOWERSCredential: MD
Location Address2240 SUTHERLAND AVE, SUITE 104Knoxville, TN 37919-2333
Mailing Address1225 E Weisgarber Rd, Suite 200Knoxville, TN 37909-2604 · (865) 584-4747 · Fax (865) 584-1363
Fax(865) 909-9883
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateJune 27, 2006
Last NPPES UpdateMay 27, 2011
✔ NPI 1669409645 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TN · 37097
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2240 SUTHERLAND AVE, Knoxville, TN 37919

Other Identifiers 5

Other110244759TN · Rr Medicare Pin
Medicare ID-Type Unspecified3879892TN · Legacy Pin
Medicaid3879892TN
Medicare ID-Type Unspecified3717541TN · Legacy Group
Medicare UPINH42358

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Michael Brian Flowers 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 ID2365406311
PECOS Enrollment IDI20100222000668
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Michael Flowers reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Internal Medicine
2240 SUTHERLAND AVE STE 103
Knoxville, TN 37919
  • Reassigned Medicare billing, Tennessee enrollment
  • 78 clinicians in this Medicare group
Internal Medicine
2240 SUTHERLAND AVE, SUITE 104
Knoxville, TN 37919
  • Reassigned Medicare billing, Tennessee enrollment
  • 1,003 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
686 services268 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
166 services164 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
147 services94 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
86 services86 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
48 services47 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
16 services16 patients

Hospital Affiliations CMS Care Compare 4

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

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 37919 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
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
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.

Referred Medical Equipment & Supplies CMS DME claims 2

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
5 suppliers31 claims31 services$18.46 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
6 suppliers51 claims51 services$87.47 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 20

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

Internal Medicine
2240 SUTHERLAND AVE, STE 104
KNOXVILLE, TN 37919
Internal Medicine
2240 SUTHERLAND AVE, SUITE 104
KNOXVILLE, TN 37919
Nurse's Aide
2240 SUTHERLAND AVE
KNOXVILLE, TN 37919
Nurse Practitioner (Family)
2240 SUTHERLAND AVE, SUITE 104
KNOXVILLE, TN 37919
Nurse Practitioner (Family)
2240 SUTHERLAND AVE, SUITE 104
KNOXVILLE, TN 37919
Internal Medicine
2240 SUTHERLAND AVE, SUITE 104
KNOXVILLE, TN 37919
Family Medicine
2240 SUTHERLAND AVE, SUITE 104
KNOXVILLE, TN 37919
Physician Assistant
2240 SUTHERLAND AVE, SUITE 104
KNOXVILLE, TN 37919

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 Michael Flowers's NPI number?

The NPI number for Michael Flowers is 1669409645. It was assigned to this individual provider in the NPPES registry on June 27, 2006.

Where is Michael Flowers located?

Michael Flowers practices at 2240 Sutherland Ave Suite 104, Knoxville, TN 37919. The listed phone number is (865) 909-0090.

What is Michael Flowers's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Michael Flowers enrolled in Medicare?

Yes. Michael Flowers 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.

Which organizations bill Medicare for Michael Flowers's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Flowers reassigns Medicare benefits to 2 organizations: Statcare Inpatient LLC (Knoxville, TN) and Summit Medical Group, PLLC (Knoxville, TN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Flowers's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Flowers accept?

Health plans from Cigna Healthcare list Michael Flowers 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 Michael Flowers affiliated with any hospitals?

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

When was this NPI record last updated?

The NPPES record for Michael Flowers was last updated on May 27, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.