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ARTHUR SIEBESIAN MFT
NPI 1861985996
Marriage & Family Therapist in Gardena, CA

Active since June 13, 2018PECOS EnrolledAccepts Medicare Assignment
1225 W 190TH ST STE 280, GARDENA, CA 90248(877) 515-8113 Get Directions Write a Review

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

Record update history: Jul 21, 2026, Sep 7, 2022, Aug 29, 2022 and 1 more (4 updates tracked since 2018).

About Arthur Siebesian Mft NPPES

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

ARTHUR SIEBESIAN MFT (NPI 1861985996) is an individual marriage & family therapist in Gardena, California, licensed in Ohio (M.2200226) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS, maintains a secondary practice location in Columbus, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1861985996
Entity TypeIndividualMale
Primary Taxonomy106H00000X
Provider Legal NameARTHUR SIEBESIANCredential: MFT
Location Address1225 W 190TH ST STE 280Gardena, CA 90248-4305
Mailing Address700 Childrens DrColumbus, OH 43205-2639 · (614) 722-2000
Phone(877) 515-8113
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJune 13, 2018
Last NPPES UpdateJuly 21, 20264 updates tracked since enumeration
NPPES CertifiedJuly 21, 2026
✔ NPI 1861985996 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in OH · M.2200226
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
1225 W 190TH ST STE 280, Gardena, CA 90248
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Secondary Practice Location 1

Location 1495 E Main StColumbus, OH 43215-5679 · Phone (614) 355-8055 · Fax (614) 355-8056

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include 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

Arthur Siebesian Mft 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 ID1456843465
PECOS Enrollment IDI20251125004926
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 Arthur Siebesian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ehab Yacoub MD Inc.
Same address
Child & Adolescent Psychiatry
1225 W 190TH ST STE 280
Gardena, CA 90248
  • Reassigned Medicare billing, California enrollment
  • 375 clinicians in this Medicare group
NPI 1417373713 (310) 515-8113

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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. JUAN CRISTOBAL RONDEAU MD
Psychiatry & Neurology (Psychiatry)
1225 W 190TH ST STE 280
GARDENA, CA 90248
Los Angeles County (877) 515-8113
SUNNY MAKOLO
Nurse Practitioner (Psychiatric/Mental Health)
1225 W 190TH ST STE 280
GARDENA, CA 90248
Los Angeles County (877) 515-8113
DR. MANUEL RAMON MOTA-CASTILLO MD
Psychiatry & Neurology (Psychiatry)
1225 W 190TH ST STE 280
GARDENA, CA 90248
Los Angeles County (877) 515-8113
PUNAM PATEL
Psychiatry & Neurology (Psychiatry)
1225 W 190TH ST STE 280
GARDENA, CA 90248
Los Angeles County (877) 515-8113
GAVEENA BAGRI
Student in an Organized Health Care Education/Training Program
1225 W 190TH ST STE 280
GARDENA, CA 90248
Los Angeles County (877) 515-8113
MS. ADALJIZA TAVERA PMHNP, FNP
Nurse Practitioner (Family)
1225 W 190TH ST STE 280
GARDENA, CA 90248
Los Angeles County (310) 515-8113
EVELYN GARCIA
Nurse Practitioner (Psychiatric/Mental Health)
1225 W 190TH ST STE 280
GARDENA, CA 90248
Los Angeles County (877) 515-8113
GLORIA S ORIGEL PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
1225 W 190TH ST STE 280
GARDENA, CA 90248
Los Angeles County (877) 515-8113

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 Arthur Siebesian's NPI number?

The NPI number for Arthur Siebesian is 1861985996. It was assigned to this individual provider in the NPPES registry on June 13, 2018.

Where is Arthur Siebesian located?

Arthur Siebesian practices at 1225 W 190th St Ste 280, Gardena, CA 90248. The listed phone number is (877) 515-8113.

What is Arthur Siebesian's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Arthur Siebesian enrolled in Medicare?

Yes. Arthur Siebesian 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 Arthur Siebesian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Arthur Siebesian reassigns Medicare benefits to Ehab Yacoub MD Inc. (Gardena, CA). 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 Arthur Siebesian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Arthur Siebesian accept?

Health plans from UnitedHealthcare list Arthur Siebesian 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 Arthur Siebesian was last updated on July 21, 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.