1. Home
  2. Directory
  3. Georgia
  4. Savannah
  5. Psychiatry Neurology
  6. NPI Profile

DR. ALTON CLEOTHA WILLIAMS III M.D.
NPI 1396150751
Psychiatry & Neurology - Psychiatry in Savannah, GA

Active since June 24, 2014PECOS EnrolledAccepts Medicare Assignment
6606 ABERCORN ST STE 210, SAVANNAH, GA 31405(912) 716-4785 Get Directions Write a Review

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

Record update history: Jul 18, 2026, Feb 9, 2021 (2 updates tracked since 2021).

About Dr. Alton Cleotha Williams Iii M.d. NPPES

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

DR. ALTON CLEOTHA WILLIAMS III M.D. (NPI 1396150751) is an individual psychiatry provider in Savannah, Georgia, licensed in Georgia (74795) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS and is a graduate of Washington University School Of Medicine (2014).

NPPES Registry Identity

NPI1396150751
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. ALTON CLEOTHA WILLIAMS IIICredential: M.D.
Location Address6606 ABERCORN ST STE 210Savannah, GA 31405-5831
Mailing Address6606 Abercorn St Ste 210Savannah, GA 31405-5831 · (912) 716-4785
Phone(912) 716-4785
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 2014
Enumeration DateJune 24, 2014
Last NPPES UpdateJuly 18, 20262 updates tracked since enumeration
NPPES CertifiedJuly 18, 2026
✔ NPI 1396150751 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in GA · 74795
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
6606 ABERCORN ST STE 210, Savannah, GA 31405
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Oscar Health, UnitedHealthcare.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. Alton Cleotha Williams Iii M.d. 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 ID2860792421
PECOS Enrollment IDI20190430002672
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

4

Medicare enrollment records show Alton Williams reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Uhs Of Savannah LLC
0.7 mi
Psychiatric Hospital
633 STEPHENSON AVE
Savannah, GA 31405
  • Reassigned Medicare billing, Georgia enrollment
  • 21 clinicians in this Medicare group
NPI 1427292333 (912) 692-4124
Mccd Fl Psychiatry Services PA
121 mi
Psychiatry
1301 RIVERPLACE BLVD STE 800
Jacksonville, FL 32207
  • Reassigned Medicare billing, Georgia enrollment
  • 66 clinicians in this Medicare group
NPI 1659003457 (833) 351-8255
South Carolina Dept Of Mental Health Accounting Office
137 mi
Mental Health (Including Community Mental Health Center)
301 PALMETTO PARK BLVD
Lexington, SC 29072
  • Reassigned Medicare billing, South Carolina enrollment
  • Also billed through NPI 1770667867 (South Carolina)
  • 236 clinicians in this Medicare group
NPI 1841374972 (803) 996-1500
Sgmp Southland LLC
150 mi
Psychiatry
2209 PINEVIEW DR
Valdosta, GA 31602
  • Reassigned Medicare billing, Georgia enrollment
  • 98 clinicians in this Medicare group
NPI 1447695085 (229) 236-0831

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 2

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.

Psychiatric diagnostic evaluation with medical services 90792
A psychiatric diagnostic evaluation with medical services is a comprehensive assessment. It includes a detailed examination of your mental health and physical wellbeing, as well as your personal and family history. This evaluation aids in creating an effective treatment plan.
18 services18 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 31405 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
$164.04 typical visit price
range $53.31 – $164.04
Typical copayment $41.01 (range $13.32 – $41.01)
Most-billed visit code 99205
Established Patient
$66.89 typical visit price
range $16.68 – $133.24
Typical copayment $16.72 (range $4.17 – $33.31)
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 Alton Williams's NPI number?

The NPI number for Alton Williams is 1396150751. It was assigned to this individual provider in the NPPES registry on June 24, 2014.

Where is Alton Williams located?

Alton Williams practices at 6606 Abercorn St Ste 210, Savannah, GA 31405. The listed phone number is (912) 716-4785.

What is Alton Williams's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Alton Williams enrolled in Medicare?

Yes. Alton 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 Alton Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alton Williams reassigns Medicare benefits to 4 organizations: Uhs Of Savannah LLC (Savannah, GA), Mccd Fl Psychiatry Services PA (Jacksonville, FL), South Carolina Dept Of Mental Health Accounting Office (Lexington, SC) and Sgmp Southland LLC (Valdosta, GA). 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 Alton Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alton Williams accept?

Health plans from Anthem Blue Cross and Blue Shield, Oscar Health and UnitedHealthcare list Alton 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 Alton Williams was last updated on July 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.