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DR. MARK ANDREW BROWN MD
NPI 1932318078
Psychiatry & Neurology - Psychiatry in Clackamas, OR

Active since May 22, 2007PECOS Enrolled
9800 SE SUNNYSIDE RD, CLACKAMAS, OR 97015(035) 249-3434 Get Directions Write a Review

NPPES record last updated: March 10, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Mark Andrew Brown Md NPPES

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

DR. MARK ANDREW BROWN MD (NPI 1932318078) is an individual psychiatry provider in Clackamas, Oregon, licensed in Oregon (MD154637) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932318078
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. MARK ANDREW BROWNCredential: MD
Location Address9800 SE SUNNYSIDE RDClackamas, OR 97015-9750
Mailing Address9800 Se Sunnyside RdClackamas, OR 97015-9750 · (520) 820-8506
Phone(035) 249-3434
Sole ProprietorYes
Enumeration DateMay 22, 2007
Last NPPES UpdateMarch 10, 2021
NPPES CertifiedMarch 10, 2021
✔ NPI 1932318078 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 · MD154637✔ Licensed in CA · A111108✔ Licensed in AZ · 38004
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.
9800 SE SUNNYSIDE RD, Clackamas, OR 97015
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Andrew Brown Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Mark Brown reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kaiser Foundation Health Plan Of The Northwest
0.1 mi
Sleep Disorder Diagnostic
9717 SE SUNNYSIDE RD, 3RD FLOOR
Clackamas, OR 97015
  • Reassigned Medicare billing, Oregon and Washington enrollments
  • Also billed through NPI 1871848457 (Washington)
  • 3,207 clinicians in this Medicare group
NPI 1174851505 (503) 659-2454

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97015 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 20

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

ASHLEY R JORDAN
Nurse Practitioner (Family)
9800 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (800) 813-2000
MICHAEL HOLLENBACK P.A.-C.
Physician Assistant (Surgical)
9800 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (503) 653-6440
DR. CALVERT JOHN SHIPLEY M.D.
Family Medicine
9800 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (503) 653-6440
JAY JOO M.D.
Pediatrics
9800 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (503) 813-2000
TRISHA ZANDER
Student in an Organized Health Care Education/Training Program
9800 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (503) 813-1319
NATASHA WARIKOO PHD
Student in an Organized Health Care Education/Training Program
9800 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (800) 813-2000
THANH VAN HOANG PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
9800 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (503) 571-8879
HANNAH LARSEN
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
9800 SE SUNNYSIDE RD
CLACKAMAS, OR 97015
Clackamas County (503) 571-8879

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 Mark Brown's NPI number?

The NPI number for Mark Brown is 1932318078. It was assigned to this individual provider in the NPPES registry on May 22, 2007.

Where is Mark Brown located?

Mark Brown practices at 9800 SE Sunnyside Rd, Clackamas, OR 97015. The listed phone number is (035) 249-3434.

What is Mark Brown's specialty?

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

Is Mark Brown enrolled in Medicare?

Yes. Mark Brown is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Brown's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Brown reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Northwest (Clackamas, OR). 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 Mark Brown's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mark Brown was last updated on March 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.