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DR. ALLAN EVAN SOSIN MD
NPI 1598789299
Internal Medicine in Irvine, CA

Active since July 26, 2006Opted out of Medicare · through Jan 1, 2027
4 HUGHES STE 175, IRVINE, CA 92618(949) 600-5100(949) 600-5101 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Allan Evan Sosin Md NPPES

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

DR. ALLAN EVAN SOSIN MD (NPI 1598789299) is an individual internal medicine provider in Irvine, California, licensed in California (G21912) and active in the NPI registry since July 2006. He has opted out of Medicare through January 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1598789299
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ALLAN EVAN SOSINCredential: MD
Location Address4 HUGHES STE 175Irvine, CA 92618-2045
Mailing Address4 Hughes Ste 175Irvine, CA 92618-2045 · (949) 600-5100 · Fax (949) 600-5101
Phone(949) 600-5100
Fax(949) 600-5101
Sole ProprietorNo
Enumeration DateJuly 26, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1598789299 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G21912
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
4 HUGHES STE 175, Irvine, CA 92618
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Other Identifiers 3

Medicare ID-Type UnspecifiedW19219CA · Group
Medicare ID-Type UnspecifiedWG21912DCA · Individual Medicare Id
Medicare UPINB35063CA

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. Allan Evan Sosin Md 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, 2019 through January 1, 2027.

Opt-Out Effective DateJanuary 1, 2019
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 92618 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
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 Allan Sosin's NPI number?

The NPI number for Allan Sosin is 1598789299. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Allan Sosin located?

Allan Sosin practices at 4 Hughes Ste 175, Irvine, CA 92618. The listed phone number is (949) 600-5100.

What is Allan Sosin's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Allan Sosin enrolled in Medicare?

No. Allan Sosin 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 Allan Sosin was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.