NEXTGEN SLEEP LLC
NPI 1245605377
Family Medicine - Sleep Medicine in Oklahoma City, OK

Q: What is Nextgen Sleep LLC's NPI number?

The NPI number for Nextgen Sleep LLC is 1245605377. It was assigned to this organization in the NPPES registry on December 1, 2015.

Q: What is Nextgen Sleep LLC's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Sleep Medicine, with taxonomy code 207QS1201X.

Q: When was this NPI record last updated?

The NPPES record for Nextgen Sleep LLC was last updated on March 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 December 01, 2015

3418 NW 135TH ST, OKLAHOMA CITY, OK 73120(405) 753-6151(405) 608-4110 Get Directions Write a Review

NPPES record last updated: March 11, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 11, 2020, Dec 1, 2015 (2 updates tracked since 2015).

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About Nextgen Sleep Llc NPPES

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

NEXTGEN SLEEP LLC (NPI 1245605377) is a healthcare organization registered as a sleep medicine in Oklahoma City, Oklahoma and active in the NPI registry since December 2015. The organization lists Karl Barreto, Manager, as its authorized official.

NPPES Registry Identity

NPI1245605377

Entity TypeOrganization

Primary Taxonomy207QS1201X

Legal Business NameNEXTGEN SLEEP LLC

Location Address3418 NW 135TH STOklahoma City, OK 73120-4009

Mailing Address3414 Nw 135th StOklahoma City, OK 73120-4009 · (405) 753-6151 · Fax (405) 608-4110

Phone(405) 753-6151

Fax(405) 608-4110

Organization SubpartNo

Authorized OfficialKarl BarretoManager · (405) 753-6151

Enumeration DateDecember 1, 2015

Last NPPES UpdateMarch 11, 20202 updates tracked since enumeration

NPPES CertifiedMarch 11, 2020

✔ NPI 1245605377 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily Medicine · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207QS1201X

License✔ Licensed in OK · 22192

Definition

A Family Medicine Physician who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

3418 NW 135TH ST, Oklahoma City, OK 73120

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nextgen Sleep Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 11 clinicians reassign Medicare billing to Nextgen Sleep LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 6 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Nurse Practitioner9

Internal Medicine1

Pulmonary Disease1

Clinicians, nearest first (11)

Rachel Watson, ARNP

Nurse Practitioner

NPI 1720040223

3418 NW 135TH ST STE B
Oklahoma City, OK 73120

(405) 753-6142

✔ PECOSSame address

Melinda Mackey, ARNP

Nurse Practitioner

NPI 1730353525

3312 NW 135TH ST
Oklahoma City, OK 73120

(405) 242-3411

✔ PECOS✔ Accepts Medicare0.1 mi

Megan Earles, APRN-CNP

Nurse Practitioner

NPI 1932875184

13100 N WESTERN AVE STE 303
Oklahoma City, OK 73114

(800) 781-1220

✔ PECOS✔ Accepts Medicare2.8 mi

Kaylan Bell, APRN-CNP

Nurse Practitioner

NPI 1720517469

3418 NW 135TH ST
Oklahoma City, OK 73120

(405) 753-6142

✔ PECOS✔ Accepts Medicare3.1 mi

Jeremy Cole, MD

Internal Medicine

NPI 1962586701

105 S BRYANT AVE SUITE 204B
Edmond, OK 73034

(405) 844-5200

✔ PECOS✔ Accepts Medicare7.5 mi

Gregory Mckinnis, MD

Pulmonary Disease

NPI 1972542207

608 NW 9TH SUITE 2100
Oklahoma City, OK 73102

(405) 232-5555

✔ PECOS✔ Accepts Medicare9.6 mi

Bethany Bia, APRN-FNP

Nurse Practitioner

NPI 1770075764

2801 PARKLAWN DR STE 404
Midwest City, OK 73110

(405) 544-3046

✔ PECOS✔ Accepts Medicare14 mi

Sarah Jones, APRN

Nurse Practitioner

NPI 1629739891

2801 PARKLAWN DR STE 404
Midwest City, OK 73110

(405) 544-3046

✔ PECOS✔ Accepts Medicare14 mi

Mackenzie Dennis, N.P.

Nurse Practitioner

NPI 1861855538

201 S SARA RD
Mustang, OK 73064

(405) 272-9355

✔ PECOS16 mi

Jeremy Morgan, APRN

Nurse Practitioner

NPI 1588148571

4750 S GARNETT RD STE C
Tulsa, OK 74146

(539) 812-2106

✔ PECOS✔ Accepts Medicare103 mi

Katrina Gallivan, APRN

Nurse Practitioner

NPI 1972055184

13501 CHENAL PKWY STE 101
Little Rock, AR 72211

(501) 239-9146

✔ PECOS✔ Accepts Medicare298 mi

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

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 Nextgen Sleep LLC's NPI number?

The NPI number for Nextgen Sleep LLC is 1245605377. It was assigned to this organization in the NPPES registry on December 1, 2015.

Where is Nextgen Sleep LLC located?

Nextgen Sleep LLC is located at 3418 NW 135th St, Oklahoma City, OK 73120. The listed phone number is (405) 753-6151.

What is Nextgen Sleep LLC's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Sleep Medicine, with taxonomy code 207QS1201X.

Is Nextgen Sleep LLC enrolled in Medicare?

Yes. Nextgen Sleep LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Nextgen Sleep LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 11 clinicians in 3 Medicare specialties reassign their Medicare billing to Nextgen Sleep LLC. A 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 the clinician's services. The largest specialties are Nurse Practitioner (9), Internal Medicine (1) and Pulmonary Disease (1). Of these, 1 practice at this address and 6 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Nextgen Sleep LLC was last updated on March 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.