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CHRISTINA A KEMPER M.D.
NPI 1427213230
Internal Medicine in Portland, OR

Active since July 21, 2008PECOS Enrolled
500 NE MULTNOMAH ST STE 100, PORTLAND, OR 97232(503) 499-5200 Get Directions Write a Review

NPPES record last updated: April 12, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 12, 2022, Apr 7, 2022, Feb 16, 2016 (3 updates tracked since 2016).

About Christina A Kemper M.d. NPPES

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

CHRISTINA A KEMPER M.D. (NPI 1427213230) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD152863) and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427213230
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameCHRISTINA A KEMPERCredential: M.D.
Location Address500 NE MULTNOMAH ST STE 100Portland, OR 97232-2099
Mailing Address10854 Sw Falcon CtBeaverton, OR 97007-8386
Phone(503) 499-5200
Sole ProprietorNo
Enumeration DateJuly 21, 2008
Last NPPES UpdateApril 12, 20223 updates tracked since enumeration
NPPES CertifiedApril 12, 2022
✔ NPI 1427213230 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in OR · MD152863✔ Licensed in OR · LL18163
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.
500 NE MULTNOMAH ST STE 100, Portland, OR 97232
Open in Google Maps ↗

Other Names 1

Former Name (1)Christina A Stratis M.d.

Other Identifiers 1

Medicaid500635764OR

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Christina A Kemper M.d. 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 Christina Kemper reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kaiser Foundation Health Plan Of The Northwest
Same address
General Practice
500 NE MULTNOMAH ST
Portland, OR 97232
  • Reassigned Medicare billing, Oregon and Washington enrollments
  • Also billed through NPI 1871848457 (Washington)
  • 3,207 clinicians in this Medicare group
NPI 1306192455 (503) 813-2440

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 97232 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
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
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.

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.

HALEY JEANNE BATTIS RN
Registered Nurse
500 NE MULTNOMAH ST STE 100
PORTLAND, OR 97232
Multnomah County (503) 680-8794
MELISSA DENNY M.D.
Emergency Medicine
500 NE MULTNOMAH ST STE 100
PORTLAND, OR 97232
Multnomah County (971) 330-9494
KELLY TERESA CARY MSW
Social Worker
500 NE MULTNOMAH ST STE 100
PORTLAND, OR 97232
Multnomah County (877) 221-8221
DR. MICHAEL SFERLE PHARMD
Pharmacist
500 NE MULTNOMAH ST STE 100
PORTLAND, OR 97232
Multnomah County (888) 658-7548
DR. JAMES D NORRIS M. D.
Internal Medicine
500 NE MULTNOMAH ST STE 100
PORTLAND, OR 97232
Multnomah County (503) 813-2800
KATHERINE ELIZABETH STALEY OTD, OTR/L
Occupational Therapist
500 NE MULTNOMAH ST STE 100
PORTLAND, OR 97232
Multnomah County (800) 813-2000
MAYURA PHADTARE MADDEN MD
Emergency Medicine
500 NE MULTNOMAH ST STE 100
PORTLAND, OR 97232
Multnomah County (800) 813-2000
JULIA C CROWLEY
Registered Nurse
500 NE MULTNOMAH ST STE 100
PORTLAND, OR 97232
Multnomah County (503) 499-5200

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 Christina Kemper's NPI number?

The NPI number for Christina Kemper is 1427213230. It was assigned to this individual provider in the NPPES registry on July 21, 2008. The provider is also known as Christina A Stratis M.D..

Where is Christina Kemper located?

Christina Kemper practices at 500 NE Multnomah St Ste 100, Portland, OR 97232. The listed phone number is (503) 499-5200.

What is Christina Kemper's specialty?

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

Is Christina Kemper enrolled in Medicare?

Yes. Christina Kemper is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Christina Kemper's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christina Kemper reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Northwest (Portland, 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 Christina Kemper'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 Christina Kemper was last updated on April 12, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.