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DR. MARILYN MAXINE SOSNA M.D.
NPI 1780637033
Psychiatry & Neurology - Psychiatry in Tustin, CA

Active since May 18, 2006Opted out of Medicare · through Jan 1, 2027
2472 CHAMBERS RD, SUITE 200, TUSTIN, CA 92780(714) 505-1500(714) 505-1780 Get Directions Write a Review

NPPES record last updated: June 28, 2012. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Marilyn Maxine Sosna M.d. NPPES

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

DR. MARILYN MAXINE SOSNA M.D. (NPI 1780637033) is an individual psychiatry provider in Tustin, California, licensed in California (A26143) and active in the NPI registry since May 2006. She has opted out of Medicare through January 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1780637033
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. MARILYN MAXINE SOSNACredential: M.D.
Location Address2472 CHAMBERS RD, SUITE 200Tustin, CA 92780-6979
Mailing Address2472 Chambers Rd, Suite 200Tustin, CA 92780-6979 · (714) 505-1500 · Fax (714) 505-1780
Phone(714) 505-1500
Fax(714) 505-1780
Sole ProprietorYes
Enumeration DateMay 18, 2006
Last NPPES UpdateJune 28, 2012
✔ NPI 1780637033 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A26143
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.
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License A26143 (CA)
2472 CHAMBERS RD, Tustin, CA 92780
Open in Google Maps ↗

Other Identifiers 2

Medicare UPINA26143CA
OtherA26143CA · State License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Marilyn Maxine Sosna M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from January 1, 2013 through January 1, 2027.

Opt-Out Effective DateJanuary 1, 2013
Opt-Out In Effect ThroughJanuary 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92780 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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

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

TRAVIS WAYNE TUCKER D. C.
Chiropractor
2472 CHAMBERS RD, STE.100
TUSTIN, CA 92780
Orange County (949) 767-7090

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 Marilyn Sosna's NPI number?

The NPI number for Marilyn Sosna is 1780637033. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is Marilyn Sosna located?

Marilyn Sosna practices at 2472 Chambers Rd Suite 200, Tustin, CA 92780. The listed phone number is (714) 505-1500.

What is Marilyn Sosna's specialty?

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

Is Marilyn Sosna enrolled in Medicare?

No. Marilyn Sosna has opted out of Medicare through January 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Marilyn Sosna was last updated on June 28, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.