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DR. WILLIAM KONOMOS MD
NPI 1558320259
Pathology - Anatomic Pathology & Clinical Pathology in Knoxville, TN

Active since March 21, 2006PECOS EnrolledAccepts Medicare Assignment
501 19TH ST, SUITE 301, KNOXVILLE, TN 37916(865) 522-7591(865) 546-2618 Get Directions Write a Review

NPPES record last updated: February 29, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. William Konomos Md NPPES

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

DR. WILLIAM KONOMOS MD (NPI 1558320259) is an individual anatomic pathology & clinical pathology provider in Knoxville, Tennessee, licensed in Tennessee (MD0000037138) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Leconte Medical Center, and is a graduate of Ohio State University College Of Medicine (1994).

NPPES Registry Identity

NPI1558320259
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameDR. WILLIAM KONOMOSCredential: MD
Location Address501 19TH ST, SUITE 301Knoxville, TN 37916-1854
Mailing AddressPo Box 30309Charleston, SC 29417-0309 · (843) 554-9300 · Fax (843) 566-8780
Phone(865) 522-7591
Fax(865) 546-2618
Sole ProprietorNo
Medical School CMSOhio State University College Of MedicineGraduated 1994
Enumeration DateMarch 21, 2006
Last NPPES UpdateFebruary 29, 2008
✔ NPI 1558320259 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in TN · MD0000037138
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
501 19TH ST, Knoxville, TN 37916
Open in Google Maps ↗

Other Identifiers 4

Medicare PIN38812771TN
Other4058145TN · Bcbs
Medicaid3881277TN
Medicare UPINH07316

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare.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

Dr. William Konomos 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 ID1759462559
PECOS Enrollment IDI20080118000043
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 Reassignment

Medicare enrollment records show William Konomos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Innovative Pathology Services PLLC
Same address
Anatomic Pathology & Clinical Pathology
501 19TH ST, SUITE 301
Knoxville, TN 37916
  • Reassigned Medicare billing, Tennessee enrollment
  • 13 clinicians in this Medicare group
NPI 1619141306 (865) 522-7591

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 11

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
382 services240 patients
Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
87 services25 patients
Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
83 services40 patients
Cell examination of specimen, selective cellular enhancement technique 88112
Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.
70 services62 patients
Pathology examination of tissue using a microscope, moderately high complexity 88307
A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.
68 services42 patients
Preparation of tissue for examination by removing any calcium present 88311
This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.
67 services65 patients

Hospital Affiliations CMS Care Compare 4

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

Leconte Medical Center

Acute Care Hospitals · Sevierville, TN
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number440081
Location742 Middlecreek RoadSevierville, TN 37862 · Sevier 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 37916 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.

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.

FORT SANDERS PERINATAL CENTER
Obstetrics & Gynecology (Maternal & Fetal Medicine)
501 19TH ST, STE 304
KNOXVILLE, TN 37916
Knox County (865) 541-2020
HOVIS ORTHOPAEDIC CLINIC PC
Orthopaedic Surgery
501 19TH ST, STE 702
KNOXVILLE, TN 37916
Knox County (865) 524-0054
DR. RICHARD ANTHONY SANCES II MD
Pathology (Anatomic Pathology & Clinical Pathology)
501 19TH ST, SUITE 301
KNOXVILLE, TN 37916
Knox County (865) 522-7591
DR. PAUL EBERTS MD
Pathology (Anatomic Pathology & Clinical Pathology)
501 19TH ST, #301
KNOXVILLE, TN 37916
Knox County (865) 522-7591
JASMINE RUMLEY
Nurse's Aide
501 19TH ST
KNOXVILLE, TN 37916
Knox County (865) 370-2830
KEVIN KINGERY
Registered Nurse (Emergency)
501 19TH ST
KNOXVILLE, TN 37916
Knox County (865) 331-2020
CLAUDE C. FRAZIER, III, DO
Dermatology
501 19TH ST, STE 309
KNOXVILLE, TN 37916
Knox County (865) 541-2929
DR. DAVID A BIRDWELL MD
Pathology (Anatomic Pathology & Clinical Pathology)
501 19TH ST, SUITE 301
KNOXVILLE, TN 37916
Knox County (865) 522-7591

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 William Konomos's NPI number?

The NPI number for William Konomos is 1558320259. It was assigned to this individual provider in the NPPES registry on March 21, 2006.

Where is William Konomos located?

William Konomos practices at 501 19th St Suite 301, Knoxville, TN 37916. The listed phone number is (865) 522-7591.

What is William Konomos's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is William Konomos enrolled in Medicare?

Yes. William Konomos 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 organization bills Medicare for William Konomos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Konomos reassigns Medicare benefits to Innovative Pathology Services PLLC (Knoxville, TN). The 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 William Konomos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Konomos accept?

Health plans from Cigna Healthcare list William Konomos 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 William Konomos affiliated with any hospitals?

According to CMS data, William Konomos is affiliated with Leconte Medical Center, Fort Loudoun Medical Center, Fort Sanders Regional Medical Center and Parkwest Medical Center.

When was this NPI record last updated?

The NPPES record for William Konomos was last updated on February 29, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.