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JAMES M SIWY PH.D.
NPI 1225245202
Psychologist - Group Psychotherapy in Roswell, GA

Active since May 17, 2007PECOS EnrolledAccepts Medicare Assignment
555 SUN VALLEY DR, SUITE L-4, ROSWELL, GA 30076(770) 641-7720(770) 642-7957 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About James M Siwy Ph.d. NPPES

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

JAMES M SIWY PH.D. (NPI 1225245202) is an individual group psychotherapy provider in Roswell, Georgia, licensed in Georgia (PSY000989) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1984).

NPPES Registry Identity

NPI1225245202
Entity TypeIndividualMale
Primary Taxonomy103TP2701X
Provider Legal NameJAMES M SIWYCredential: PH.D.
Location Address555 SUN VALLEY DR, SUITE L-4Roswell, GA 30076-5612
Mailing Address390 N Pond TrlRoswell, GA 30076-2921 · (770) 641-7720 · Fax (770) 642-7957
Phone(770) 641-7720
Fax(770) 642-7957
Sole ProprietorYes
Medical School CMSOtherGraduated 1984
Enumeration DateMay 17, 2007
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1225245202 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · Group PsychotherapyBehavioral Health & Social Service Providers
Taxonomy Code103TP2701X
License✔ Licensed in GA · PSY000989
Definition

A psychologist who specializes in group psychology and group psychotherapy that is an evidenced-based specialty that prepares group leaders to identify and capitalize on developmental and healing possibilities embedded in the interpersonal/intrapersonal functioning of individual group members as well as collectively for the group. Emphasis is placed on the use of group dynamics to assist and treat individual group members. The specialty is applicable to all age groups, children, adolescents, adults and older adults, for a wide variety of conditions and concerns, and in numerous and diverse settings.

Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License PSY000989 (GA)
555 SUN VALLEY DR, Roswell, GA 30076
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

James M Siwy Ph.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 ID4284651514
PECOS Enrollment IDI20051026000899
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.

Areas of Expertise CMS Part B claims

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.

Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
377 services12 patients

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.

MRS. LORI WINDHAM LPC
Counselor (Professional)
555 SUN VALLEY DR, BLDG F SUITE 1A
ROSWELL, GA 30076
Fulton County (770) 998-0989
MS. HELEN DOUTHAT LPC
Counselor (Professional)
555 SUN VALLEY DR, BLDG F- SUITE 1A
ROSWELL, GA 30076
Fulton County (770) 998-0989
DR. WENDY ANN HANEVOLD PH.D.
Psychologist
555 SUN VALLEY DR, SUITE M-1
ROSWELL, GA 30076
Fulton County (404) 325-1614
DR. WILLIAM THOMAS COLLINS DC
Chiropractor
555 SUN VALLEY DR, SUITE A3
ROSWELL, GA 30076
Fulton County (770) 663-8899
DR. RHETT BERGERON M.D
Family Medicine
555 SUN VALLEY DR, SUITE D
ROSWELL, GA 30076
Fulton County (678) 990-5401
MRS. ELIZABETH ALLISON LPC
Counselor (Professional)
555 SUN VALLEY DR, BLDG F - SUITE 1A
ROSWELL, GA 30076
Fulton County (770) 998-0989
MS. VALERIANN BIZON MARSHALL N.P.-C
Nurse Practitioner (Family)
555 SUN VALLEY DR, SUITE D-1
ROSWELL, GA 30076
Fulton County (678) 990-5401
DR. RAYMOND PAUL FOWLER D.C.
Chiropractor
555 SUN VALLEY DR, SUITE G-3
ROSWELL, GA 30076
Fulton County (770) 641-8283

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 James Siwy's NPI number?

The NPI number for James Siwy is 1225245202. It was assigned to this individual provider in the NPPES registry on May 17, 2007.

Where is James Siwy located?

James Siwy practices at 555 Sun Valley Dr Suite L-4, Roswell, GA 30076. The listed phone number is (770) 641-7720.

What is James Siwy's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Group Psychotherapy, with taxonomy code 103TP2701X.

Is James Siwy enrolled in Medicare?

Yes. James Siwy 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.

What insurance does James Siwy accept?

Health plans from Providence Health Plan list James Siwy 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 James Siwy was last updated on September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.