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NATHANIEL THEODORE KOUTLAS MD
NPI 1609439694
Orthopaedic Surgery in Alcoa, TN

Active since April 16, 2019PECOS EnrolledAccepts Medicare Assignment
1146 FRANCK ST, 101, ALCOA, TN 37701(865) 694-7725 Get Directions Write a Review

NPPES record last updated: February 17, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 7, 2025, Jun 9, 2025, Apr 29, 2024 and 1 more (4 updates tracked since 2019).

About Nathaniel Theodore Koutlas Md NPPES

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

NATHANIEL THEODORE KOUTLAS MD (NPI 1609439694) is an individual orthopaedic surgery provider in Alcoa, Tennessee, licensed in Tennessee (74215) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Fort Loudoun Medical Center, and maintains a secondary practice location in Knoxville.

NPPES Registry Identity

NPI1609439694
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameNATHANIEL THEODORE KOUTLASCredential: MD
Location Address1146 FRANCK ST, 101Alcoa, TN 37701
Mailing AddressPo Box 306556Nashville, TN 37230-6556 · (615) 329-2294 · Fax (615) 695-1494
Phone(865) 694-7725
Sole ProprietorYes
Medical School CMSOtherGraduated 2019
Enumeration DateApril 16, 2019
Last NPPES UpdateFebruary 17, 20264 updates tracked since enumeration
NPPES CertifiedFebruary 17, 2026
✔ NPI 1609439694 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in TN · 74215
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
1146 FRANCK ST, Alcoa, TN 37701
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Secondary Practice Location 1

Location 19430 Park West Blvd Ste 130Knoxville, TN 37923-4205 · Phone (865) 355-0811 · Fax (865) 560-8525

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee, UnitedHealthcare.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

Nathaniel Theodore Koutlas 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 ID2466795463
PECOS Enrollment IDI20250702000030
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.

Hospital Affiliations CMS Care Compare 2

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

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

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 37701 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
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
Established Patient
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
Most-billed visit code 99213
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

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

DR. JOANNE PAGE BAIRD MD
Orthopaedic Surgery (Sports Medicine)
1146 FRANCK ST, 101
ALCOA, TN 37701
Blount County (865) 355-0811

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 Nathaniel Koutlas's NPI number?

The NPI number for Nathaniel Koutlas is 1609439694. It was assigned to this individual provider in the NPPES registry on April 16, 2019.

Where is Nathaniel Koutlas located?

Nathaniel Koutlas practices at 1146 Franck St 101, Alcoa, TN 37701. The listed phone number is (865) 694-7725.

What is Nathaniel Koutlas's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Nathaniel Koutlas enrolled in Medicare?

Yes. Nathaniel Koutlas 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 Nathaniel Koutlas accept?

Health plans from BlueCross BlueShield of Tennessee and UnitedHealthcare list Nathaniel Koutlas 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 Nathaniel Koutlas affiliated with any hospitals?

According to CMS data, Nathaniel Koutlas is affiliated with Fort Loudoun Medical Center and Parkwest Medical Center.

When was this NPI record last updated?

The NPPES record for Nathaniel Koutlas was last updated on February 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.