DR. SONJA GAYLE WILLIAMS DO
NPI 1609836857
Obstetrics & Gynecology in Cullman, AL

Active since March 23, 2006PECOS EnrolledAccepts Medicare Assignment
1912 COMMERCE AVE, CULLMAN, AL 35055(256) 739-5595(256) 739-5375 Get Directions Write a Review

NPPES record last updated: November 27, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 4, 2023, Aug 22, 2019, Feb 4, 2019 and 2 more (5 updates tracked since 2018).

About Dr. Sonja Gayle Williams Do NPPES

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

DR. SONJA GAYLE WILLIAMS DO (NPI 1609836857) is an individual obstetrics & gynecology provider in Cullman, Alabama, licensed in Alabama (DO.3174) and active in the NPI registry since March 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Pikeville, Kentucky College Of Osteopathic Med (2001).

NPPES Registry Identity

NPI1609836857
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. SONJA GAYLE WILLIAMSCredential: DO
Location Address1912 COMMERCE AVECullman, AL 35055-6150
Mailing Address1600 Main St EHartselle, AL 35640-2059 · (256) 754-5178
Fax(256) 739-5375
Sole ProprietorNo
Medical School CMSUniversity Of Pikeville, Kentucky College Of Osteopathic MedGraduated 2001
Enumeration DateMarch 23, 2006
Last NPPES UpdateNovember 27, 20245 updates tracked since enumeration
NPPES CertifiedNovember 27, 2024
✔ NPI 1609836857 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in AL · DO.3174✔ Licensed in MO · 200500798
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedFamily Medicine · Addiction MedicineTaxonomy 207QA0401X · License DO.3174 (AL)
1912 COMMERCE AVE, Cullman, AL 35055

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Sonja Gayle Williams Do 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 ID3870590946
PECOS Enrollment IDI20230612003349
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

7

Medicare enrollment records show Sonja Williams reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Same address
Mental Health (Including Community Mental Health Center)
1912 COMMERCE AVE
Cullman, AL 35055
  • Reassigned Medicare billing, Alabama enrollment
  • 15 clinicians in this Medicare group
Specialist
101 SIVLEY RD SW
Huntsville, AL 35801
  • Reassigned Medicare billing, Alabama enrollment
  • 182 clinicians in this Medicare group
Rehabilitation, Substance Use Disorder
1369 N WESTWOOD BLVD STE C
Poplar Bluff, MO 63901
  • Reassigned Medicare billing, Missouri enrollment
  • 15 clinicians in this Medicare group
Rural Health
9138 O'BANION ST
Birch Tree, MO 65438
  • Reassigned Medicare billing, Missouri enrollment
  • Also billed through NPI 1245277631 (Missouri)
  • 1,487 clinicians in this Medicare group
Rehabilitation, Substance Use Disorder
1639 BRUCE SMITH PKWY
West Plains, MO 65775
  • Reassigned Medicare billing, Missouri enrollment
  • 10 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
601 S MCARTHUR ST
Salem, MO 65560
  • Reassigned Medicare billing, Missouri enrollment
  • 27 clinicians in this Medicare group
Rehabilitation, Substance Use Disorder
404 EAST BATTLEFIELD
Springfield, MO 65807
  • Reassigned Medicare billing, Missouri enrollment
  • 12 clinicians in this Medicare group

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 4

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.
164 services42 patients
Testing for presence of drug, read by direct observation 80305
Testing for the presence of drugs involves collecting a sample, usually urine, which is then analyzed for specific substances. The process is monitored directly to ensure accuracy and integrity. This test helps to confirm if drugs are present in your system.
108 services34 patients
Office-based treatment for opioid use disorder, including care coordination, individual therapy and group therapy and counseling; at least 60 minutes in a subsequent calendar month G2087
This treatment for opioid use disorder involves regular office visits for coordinated care, individual and group therapy. It aims to manage withdrawal symptoms, prevent relapse, and promote recovery. It's a 60-minute procedure, repeated monthly.
22 services18 patients
Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms G0480
A definitive drug test is a detailed examination that can identify specific drugs in your system, even closely related ones. Techniques like GC/MS and LC/MS are used for high precision. This helps ensure accurate results for your safety and health.
21 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 35055 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
$122.31 typical visit price
range $52.65 – $161.63
Typical copayment $30.57 (range $13.16 – $40.40)
Most-billed visit code 99204
Established Patient
$66.08 typical visit price
range $16.56 – $131.65
Typical copayment $16.52 (range $4.14 – $32.91)
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 10

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

Counselor (Addiction (Substance Use Disorder))
1912 COMMERCE AVE
CULLMAN, AL 35055
Counselor (Addiction (Substance Use Disorder))
1912 COMMERCE AVE
CULLMAN, AL 35055
Counselor (Addiction (Substance Use Disorder))
1912 COMMERCE AVE
CULLMAN, AL 35055
Clinic/Center (Mental Health (Including Community Mental Health Center))
1912 COMMERCE AVE
CULLMAN, AL 35055
Counselor
1912 COMMERCE AVE
CULLMAN, AL 35055
Clinic/Center (Methadone)
1912 COMMERCE AVE
CULLMAN, AL 35055
Counselor (Mental Health)
1912 COMMERCE AVE
CULLMAN, AL 35055
Counselor (Addiction (Substance Use Disorder))
1912 COMMERCE AVE
CULLMAN, AL 35055

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 Sonja Williams's NPI number?

The NPI number for Sonja Williams is 1609836857. It was assigned to this individual provider in the NPPES registry on March 23, 2006.

Where is Sonja Williams located?

Sonja Williams practices at 1912 Commerce Ave, Cullman, AL 35055. The listed phone number is (256) 739-5595.

What is Sonja Williams's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Sonja Williams enrolled in Medicare?

Yes. Sonja Williams 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.

Which organizations bill Medicare for Sonja Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sonja Williams reassigns Medicare benefits to 7 organizations: Bhg Lxxii, LLC (Cullman, AL), Hh Physicians Network (Huntsville, AL), Bhg Lxxiv, LLC (Poplar Bluff, MO), Mercy Clinic Springfield Communities (Birch Tree, MO), Bhg Xxviii, LLC (West Plains, MO) and 2 more organizations, listed in the Medicare section above. 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 Sonja Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sonja Williams accept?

Health plans from Ambetter Health, Ambetter of Alabama, Ambetter of Tennessee, Medica and Oscar Insurance Company list Sonja Williams 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 Sonja Williams was last updated on November 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.