1. Home
  2. Directory
  3. Arkansas
  4. Dumas
  5. Nurse Practitioner
  6. NPI Profile

JACK LESLIE LOCK APRN FNP-BC
NPI 1265917611
Nurse Practitioner - Family in Dumas, AR

Active since October 02, 2018PECOS Enrolled
811 HIGHWAY 65 S, DUMAS, AR 71639(870) 456-3570 Get Directions Write a Review

NPPES record last updated: October 18, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 18, 2018, Oct 2, 2018 (2 updates tracked since 2018).

About Jack Leslie Lock Aprn Fnp-bc NPPES

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

JACK LESLIE LOCK APRN FNP-BC (NPI 1265917611) is an individual family provider in Dumas, Arkansas, licensed in Arkansas (A005934) and active in the NPI registry since October 2018. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1265917611
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameJACK LESLIE LOCKCredential: APRN FNP-BC
Location Address811 HIGHWAY 65 SDumas, AR 71639-3006
Mailing AddressPo Box 95De Witt, AR 72042-0095
Phone(870) 456-3570
Sole ProprietorNo
Enumeration DateOctober 2, 2018
Last NPPES UpdateOctober 18, 20182 updates tracked since enumeration
✔ NPI 1265917611 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in AR · A005934
811 HIGHWAY 65 S, Dumas, AR 71639
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jack Leslie Lock Aprn Fnp-bc 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 Reassignment

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

Signify Health Medical Associates, PLLC
317 mi
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, Arkansas enrollment
  • 354 clinicians in this Medicare group
NPI 1750845863 (972) 715-3800

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 71639 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
$79.72 typical visit price
range $51.36 – $157.74
Typical copayment $19.93 (range $12.84 – $39.43)
Most-billed visit code 99203
Established Patient
$91.63 typical visit price
range $16.16 – $128.77
Typical copayment $22.90 (range $4.04 – $32.19)
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 19

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

CHRISTINE FREEMAN LPN
Licensed Practical Nurse
811 HIGHWAY 65 S
DUMAS, AR 71639
Desha County (870) 382-3873
MORGAN REEP RN
Registered Nurse
811 HIGHWAY 65 S
DUMAS, AR 71639
Desha County (870) 382-3873
F. DAVID CHAMBERS, M.D. PA
Family Medicine
811 HIGHWAY 65 S
DUMAS, AR 71639
Desha County (870) 382-8261
DON REYNADO PT
Physical Therapist
811 HIGHWAY 65 S
DUMAS, AR 71639
Desha County (870) 382-4303
DR. FRANKLIN DAVID CHAMBERS M.D.
Family Medicine
811 HIGHWAY 65 S
DUMAS, AR 71639
Desha County (870) 382-8261
DELTA MEMORIAL HOSPITAL
Psychiatric Unit
811 HIGHWAY 65 S
DUMAS, AR 71639
Desha County (870) 382-4303
DR. LON G BITZER MD
Specialist
811 HIGHWAY 65 S
DUMAS, AR 71639
Desha County (870) 382-4303
DELTA MEMORIAL HOSPITAL
Psychiatric Unit
811 HIGHWAY 65 S
DUMAS, AR 71639
Desha County (870) 382-4303

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 Jack Lock's NPI number?

The NPI number for Jack Lock is 1265917611. It was assigned to this individual provider in the NPPES registry on October 2, 2018.

Where is Jack Lock located?

Jack Lock practices at 811 Highway 65 S, Dumas, AR 71639. The listed phone number is (870) 456-3570.

What is Jack Lock's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Jack Lock enrolled in Medicare?

Yes. Jack Lock is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jack Lock's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jack Lock reassigns Medicare benefits to Signify Health Medical Associates, PLLC (Dallas, TX). 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 Jack Lock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Jack Lock was last updated on October 18, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.