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ALLEN LYTTON STARK MD
NPI 1427125806
Psychiatry & Neurology - Psychiatry in Lake Oswego, OR

Active since November 29, 2006Opted out of Medicare · through Mar 30, 2027
340 OSWEGO POINTE DR, SUITE 205, LAKE OSWEGO, OR 97034(503) 635-9336(503) 635-5414 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 04, 2026.

About Allen Lytton Stark Md NPPES

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

ALLEN LYTTON STARK MD (NPI 1427125806) is an individual psychiatry provider in Lake Oswego, Oregon, licensed in Oregon (MD15722) and active in the NPI registry since November 2006. He has opted out of Medicare through March 30, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1427125806
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameALLEN LYTTON STARKCredential: MD
Location Address340 OSWEGO POINTE DR, SUITE 205Lake Oswego, OR 97034
Mailing AddressPo Box 1110Mulino, OR 97042 · (503) 632-7426
Phone(503) 635-9336
Fax(503) 635-5414
Sole ProprietorNo
Enumeration DateNovember 29, 2006
Last NPPES UpdateMarch 7, 2023
✔ NPI 1427125806 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in OR · MD15722✔ Licensed in TX · E2875
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.
340 OSWEGO POINTE DR, Lake Oswego, OR 97034
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Other Identifiers 1

OtherO26542OR · Or

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc., PacificSource Health Plans, Regence BlueCross BlueShield of Oregon.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

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Opted out of Medicare

Allen Lytton Stark 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 March 30, 2017 through March 30, 2027.

Opt-Out Effective DateMarch 30, 2017
Opt-Out In Effect ThroughMarch 30, 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 97034 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
$176.88 typical visit price
range $58.99 – $176.88
Typical copayment $44.22 (range $14.74 – $44.22)
Most-billed visit code 99205
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
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.

CAROL LYNN REYNOLDS STARK MD
Psychiatry & Neurology (Psychiatry)
340 OSWEGO POINTE DR, SUITE 205
LAKE OSWEGO, OR 97034
Clackamas County (503) 635-9336

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 Allen Stark's NPI number?

The NPI number for Allen Stark is 1427125806. It was assigned to this individual provider in the NPPES registry on November 29, 2006.

Where is Allen Stark located?

Allen Stark practices at 340 Oswego Pointe Dr Suite 205, Lake Oswego, OR 97034. The listed phone number is (503) 635-9336.

What is Allen Stark's specialty?

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

Is Allen Stark enrolled in Medicare?

No. Allen Stark has opted out of Medicare through March 30, 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.

What insurance does Allen Stark accept?

Health plans from Moda Health Plan, Inc., PacificSource Health Plans and Regence BlueCross BlueShield of Oregon list Allen Stark 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 Allen Stark was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.