KATELYN KENNEDY ATWATER M.D.
NPI 1134486467
Internal Medicine in Nashville, TN

Q: What is Katelyn Atwater's NPI number?

The NPI number for Katelyn Atwater is 1134486467. It was assigned to this individual provider in the NPPES registry on April 11, 2012. The provider is also known as Katelyn Kennedy Ladd M.D..

Q: What is Katelyn Atwater's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Katelyn Atwater was last updated on March 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since April 11, 2012PECOS Enrolled

97.12/100

CMS Quality Rating

719 THOMPSON LN, SUITE 38500, NASHVILLE, TN 37204(615) 936-1212 Get Directions Write a Review

NPPES record last updated: March 23, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Katelyn Kennedy Atwater M.d. NPPES

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

KATELYN KENNEDY ATWATER M.D. (NPI 1134486467) is an individual internal medicine provider in Nashville, Tennessee, licensed in Tennessee (MD0000052320) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1134486467

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameKATELYN KENNEDY ATWATERCredential: M.D.

Location Address719 THOMPSON LN, SUITE 38500Nashville, TN 37204-3609

Mailing Address3841 Green Hills Village Dr Ste 200Nashville, TN 37215-2691

Phone(615) 936-1212

Sole ProprietorNo

Enumeration DateApril 11, 2012

Last NPPES UpdateMarch 23, 2022

NPPES CertifiedMarch 23, 2022

✔ NPI 1134486467 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 · MD0000052320

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.

719 THOMPSON LN, Nashville, TN 37204

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Other Names 1

Former Name (1)Katelyn Kennedy Ladd M.d.

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., Ambetter from Arkansas Health & Wellness, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katelyn Kennedy Atwater M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

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

Vanderbilt University Medical Center

3.1 mi

Internal Medicine

1301 22ND AVE S
Nashville, TN 37232

Reassigned Medicare billing, Tennessee enrollment
4,711 clinicians in this Medicare group

NPI 1104202761 (615) 936-2000

Vanderbilt Health And Williamson Medical Center Clinics And Services,

14 mi

Internal Medicine

919 MURFREESBORO RD
Franklin, TN 37064

Reassigned Medicare billing, Tennessee enrollment
298 clinicians in this Medicare group

NPI 1225135551 (615) 591-9890

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 3

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

101 services62 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

85 services85 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

35 services31 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37204 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.

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.

97.12/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

85.64

Promoting Interoperability

100

Improvement Activities

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.

DR. ERIC AUSTIN MILLICAN M.D.

Dermatology (MOHS-Micrographic Surgery)

719 THOMPSON LN, SUITE 26300
NASHVILLE, TN 37204

Davidson County (615) 322-0845

SHANNON MARIE DOODY CCC-SLP

Speech-Language Pathologist

719 THOMPSON LN
NASHVILLE, TN 37204

Davidson County (615) 322-3000

CARMIN D BARTOW

Speech-Language Pathologist

719 THOMPSON LN
NASHVILLE, TN 37204

Davidson County (615) 936-3606

KATHLEEN AMSTUTZ APRN

Nurse Practitioner (Family)

719 THOMPSON LN, SUITE 21000
NASHVILLE, TN 37204

Davidson County (615) 875-0645

MR. JAMES ROBERTSON NASH ACNP, BC

Nurse Practitioner (Acute Care)

719 THOMPSON LN, SUTIE 37189
NASHVILLE, TN 37204

Davidson County (615) 875-5111

DR. JESSICA L CASTILHO M.D.

Internal Medicine (Infectious Disease)

719 THOMPSON LN, SUITE 37189
NASHVILLE, TN 37204

Davidson County (615) 875-5111

CAITLIN M MANN CGC

Genetic Counselor, MS

719 THOMPSON LN, SUITE 27100
NASHVILLE, TN 37204

Davidson County (630) 569-0629

JILL RENE SLAMON MS, LCGC

Genetic Counselor, MS

719 THOMPSON LN, SUITE 27100
NASHVILLE, TN 37204

Davidson County (615) 936-3491

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 Katelyn Atwater's NPI number?

The NPI number for Katelyn Atwater is 1134486467. It was assigned to this individual provider in the NPPES registry on April 11, 2012. The provider is also known as Katelyn Kennedy Ladd M.D..

Where is Katelyn Atwater located?

Katelyn Atwater practices at 719 Thompson Ln Suite 38500, Nashville, TN 37204. The listed phone number is (615) 936-1212.

What is Katelyn Atwater's specialty?

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

Is Katelyn Atwater enrolled in Medicare?

Yes. Katelyn Atwater is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Katelyn Atwater's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katelyn Atwater reassigns Medicare benefits to 2 organizations: Vanderbilt University Medical Center (Nashville, TN) and Vanderbilt Health And Williamson Medical Center Clinics And Services, (Franklin, 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 Katelyn Atwater's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katelyn Atwater accept?

Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama and Ambetter of North Carolina and 4 other insurers list Katelyn Atwater 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.

When was this NPI record last updated?

The NPPES record for Katelyn Atwater was last updated on March 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.