DR. ANDREW G WILLIAMSON DMD
NPI 1124257910
Dentist - General Practice in Harvest, AL

Q: What is Andrew Williamson's NPI number?

The NPI number for Andrew Williamson is 1124257910. It was assigned to this individual provider in the NPPES registry on July 14, 2009.

Q: What is Andrew Williamson's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for Andrew Williamson was last updated on September 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since July 14, 2009PECOS Enrolled

3154 JEFF RD, HARVEST, AL 35749(256) 852-1100 Get Directions Write a Review

NPPES record last updated: September 2, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. Andrew G Williamson Dmd NPPES

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

DR. ANDREW G WILLIAMSON DMD (NPI 1124257910) is an individual general practice provider in Harvest, Alabama, licensed in Alabama (5711) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124257910

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. ANDREW G WILLIAMSONCredential: DMD

Location Address3154 JEFF RDHarvest, AL 35749-8653

Mailing Address3154 Jeff RdHarvest, AL 35749-8653 · (256) 852-1100

Phone(256) 852-1100

Sole ProprietorNo

Enumeration DateJuly 14, 2009

Last NPPES UpdateSeptember 2, 2025

NPPES CertifiedSeptember 2, 2025

✔ NPI 1124257910 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in AL · 5711

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

3154 JEFF RD, Harvest, AL 35749

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Magnolia Health, Ambetter Health, Ambetter of Alabama and more.Insurance ›

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. Andrew G Williamson Dmd 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 35749 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

$81.90 typical visit price

range $52.65 – $161.63

Typical copayment $20.47 (range $13.16 – $40.40)

Most-billed visit code 99203

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.

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 Andrew Williamson's NPI number?

The NPI number for Andrew Williamson is 1124257910. It was assigned to this individual provider in the NPPES registry on July 14, 2009.

Where is Andrew Williamson located?

Andrew Williamson practices at 3154 Jeff Rd, Harvest, AL 35749. The listed phone number is (256) 852-1100.

What is Andrew Williamson's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Is Andrew Williamson enrolled in Medicare?

Yes. Andrew Williamson is registered in the Medicare PECOS enrollment system.

What insurance does Andrew Williamson accept?

Health plans from Ambetter Health, Ambetter from Magnolia Health, Ambetter of Alabama, Ambetter of Tennessee and Anthem Blue Cross and Blue Shield and 12 other insurers list Andrew Williamson 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 Andrew Williamson was last updated on September 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.