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

DR. JACK J. ST. JEAN MD
NPI 1467031732
Psychiatry & Neurology - Psychiatry in Alpharetta, GA

Active since April 05, 2021PECOS EnrolledAccepts Medicare Assignment
3400 OLD MILTON PKWY, BUILDING C, SUITE 395,, ALPHARETTA, GA 30005(678) 384-4911(678) 405-3259 Get Directions Write a Review

NPPES record last updated: August 21, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 10, 2025, Jun 27, 2025, Apr 17, 2021 and 1 more (4 updates tracked since 2021).

About Dr. Jack J. St. Jean Md NPPES

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

DR. JACK J. ST. JEAN MD (NPI 1467031732) is an individual psychiatry provider in Alpharetta, Georgia, licensed in Georgia (103618) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1467031732
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. JACK J. ST. JEANCredential: MD
Location Address3400 OLD MILTON PKWY, BUILDING C, SUITE 395,Alpharetta, GA 30005-3707
Mailing Address3400 Old Milton Pkwy Ste 395Alpharetta, GA 30005-3707 · (678) 384-4911
Phone(678) 384-4911
Fax(678) 405-3259
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateApril 5, 2021
Last NPPES UpdateAugust 21, 20254 updates tracked since enumeration
NPPES CertifiedAugust 21, 2025
✔ NPI 1467031732 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 · 103618
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.
3400 OLD MILTON PKWY, Alpharetta, GA 30005
Open in Google Maps ↗

Other Names 1

Other Name (5)Dr. Jack J. St Jean Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.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. Jack J. St. Jean Md 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 ID7719480375
PECOS Enrollment IDI20250911000262
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 St. Jean reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Privia Medical Group Of Georgia LLC
44 mi
Internal Medicine
101 YORKTOWN DR
Fayetteville, GA 30214
  • Reassigned Medicare billing, Georgia enrollment
  • 759 clinicians in this Medicare group
NPI 1013313857 (770) 460-4285

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 30005 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
$172.43 typical visit price
range $56.84 – $172.43
Typical copayment $43.10 (range $14.21 – $43.10)
Most-billed visit code 99205
Established Patient
$70.85 typical visit price
range $18.22 – $140.40
Typical copayment $17.71 (range $4.55 – $35.10)
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 20

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

DR. LISA A VINOKUR MD
Specialist
3400 OLD MILTON PKWY, SUITE C585
ALPHARETTA, GA 30005
Fulton County (770) 754-4445
DR. LARUE D PENNY JR. M.D.
Pediatrics
3400 OLD MILTON PKWY, SUITE 330/BLDG A
ALPHARETTA, GA 30005
Fulton County (770) 751-6111
EDWARD S. TRIZZINO
Dentist (General Practice)
3400 OLD MILTON PKWY, BUILDING C, SUITE 370
ALPHARETTA, GA 30005
Fulton County (770) 777-0808
ELIZABETH T SERGILE MD
Family Medicine
3400 OLD MILTON PKWY, STE A130
ALPHARETTA, GA 30005
Fulton County (770) 664-8898
MRS. SUSAN HORION ROSS FNP, PNP
Nurse Practitioner
3400 OLD MILTON PKWY, BUILDING C SUITE 545
ALPHARETTA, GA 30005
Fulton County (770) 751-0800
THE VEIN CENTER OF NORTH GEORGIA
Specialist
3400 OLD MILTON PKWY, SUITE C590
ALPHARETTA, GA 30005
Fulton County (770) 664-5713
DR. MICHAEL R PAPCIAK M.D.
Pediatrics
3400 OLD MILTON PKWY, SUITE 330
ALPHARETTA, GA 30005
Fulton County (770) 751-6111
LOTUS VISION LLC
Ophthalmology
3400 OLD MILTON PKWY, SUITE A520
ALPHARETTA, GA 30005
Fulton County (678) 762-1700

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 St. Jean's NPI number?

The NPI number for Jack St. Jean is 1467031732. It was assigned to this individual provider in the NPPES registry on April 5, 2021. The provider is also known as Dr. Jack J. St Jean MD.

Where is Jack St. Jean located?

Jack St. Jean practices at 3400 Old Milton Pkwy Building C, Suite 395,, Alpharetta, GA 30005. The listed phone number is (678) 384-4911.

What is Jack St. Jean's specialty?

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

Is Jack St. Jean enrolled in Medicare?

Yes. Jack St. Jean 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 organization bills Medicare for Jack St. Jean's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jack St. Jean reassigns Medicare benefits to Privia Medical Group Of Georgia LLC (Fayetteville, GA). 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 St. Jean's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jack St. Jean accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Jack St. Jean 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 Jack St. Jean was last updated on August 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.