1. Home
  2. Directory
  3. Texas
  4. Dallas
  5. Internal Medicine
  6. NPI Profile

DR. SONYA LEIGH MERRILL MD, PHD
NPI 1316954092
Internal Medicine - Sleep Medicine in Dallas, TX

Active since August 02, 2006PECOS Enrolled
7777 FOREST LN, B116, DALLAS, TX 75230(972) 566-7684 Get Directions Write a Review

NPPES record last updated: July 16, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Sonya Leigh Merrill Md, Phd NPPES

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

DR. SONYA LEIGH MERRILL MD, PHD (NPI 1316954092) is an individual sleep medicine provider in Dallas, Texas, licensed in Texas (L6114) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1316954092
Entity TypeIndividualFemale
Primary Taxonomy207RS0012X
Provider Legal NameDR. SONYA LEIGH MERRILLCredential: MD, PHD
Location Address7777 FOREST LN, B116Dallas, TX 75230
Mailing Address7777 Forest Ln, B116Dallas, TX 75230 · (972) 566-7684
Phone(972) 566-7684
Sole ProprietorNo
Enumeration DateAugust 2, 2006
Last NPPES UpdateJuly 16, 2007
✔ NPI 1316954092 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
License✔ Licensed in TX · L6114
Definition
An Internist 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.
7777 FOREST LN, Dallas, TX 75230
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sonya Leigh Merrill Md, Phd 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75230 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
$131.01 typical visit price
range $57.18 – $172.86
Typical copayment $32.75 (range $14.29 – $43.21)
Most-billed visit code 99204
Established Patient
$100.80 typical visit price
range $18.48 – $141.20
Typical copayment $25.20 (range $4.62 – $35.30)
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.

Referred Medical Equipment & Supplies CMS DME claims 16

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
8 suppliers559 claims559 services$30.93 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
11 suppliers186 claims186 services$77.46 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
11 suppliers217 claims595 services$28.86 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
7 suppliers249 claims1,321 services$16.70 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
6 suppliers184 claims983 services$13.35 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
9 suppliers384 claims384 services$48.80 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

JEFFREY SZOT M.D.
Emergency Medicine
7777 FOREST LN
DALLAS, TX 75230
Dallas County (972) 566-2667
NORTH DALLAS ORTHOPEDICS & REHABILITATION, PA
Clinic/Center
7777 FOREST LN, C-500
DALLAS, TX 75230
Dallas County (972) 566-6366
KASEY REHME
Speech-Language Pathologist
7777 FOREST LN
DALLAS, TX 75230
Dallas County (972) 566-7000
DR. CHRISTIAN BREWER MD
Emergency Medicine
7777 FOREST LN
DALLAS, TX 75230
Dallas County (972) 566-7000
JEFFREY L. HORSWELL, MD PA
Anesthesiology
7777 FOREST LN
DALLAS, TX 75230
Dallas County (972) 247-9946
MRS. AMELIE P. MCKNEELY PA-C
Physician Assistant (Surgical)
7777 FOREST LN
DALLAS, TX 75230
Dallas County (972) 566-7000
MRS. SUSAN KAY DEAHL M.C.D.
Audiologist-Hearing Aid Fitter
7777 FOREST LN, BUILDING C SUITE 100
DALLAS, TX 75230
Dallas County (972) 566-4848
360 ANESTHESIA, PA
Anesthesiology
7777 FOREST LN
DALLAS, TX 75230
Dallas County (972) 566-4817

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 Sonya Merrill's NPI number?

The NPI number for Sonya Merrill is 1316954092. It was assigned to this individual provider in the NPPES registry on August 2, 2006.

Where is Sonya Merrill located?

Sonya Merrill practices at 7777 Forest Ln B116, Dallas, TX 75230. The listed phone number is (972) 566-7684.

What is Sonya Merrill's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Sonya Merrill enrolled in Medicare?

Yes. Sonya Merrill is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Sonya Merrill was last updated on July 16, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.