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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. NATHAN JOSEPH STUMPF MD
NPI 1881337269
Internal Medicine - Geriatric Medicine in Portland, OR

Active since April 14, 2022PECOS Enrolled
500 NE MULTNOMAH ST STE 100, PORTLAND, OR 97232(360) 571-3005 Get Directions Write a Review

NPPES record last updated: August 5, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 5, 2026, Apr 14, 2022 (2 updates tracked since 2022).

About Dr. Nathan Joseph Stumpf Md NPPES

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

DR. NATHAN JOSEPH STUMPF MD (NPI 1881337269) is an individual geriatric medicine provider in Portland, Oregon, licensed in Oregon (PG226671) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1881337269
Entity TypeIndividualMale
Primary Taxonomy207RG0300X
Provider Legal NameDR. NATHAN JOSEPH STUMPFCredential: MD
Location Address500 NE MULTNOMAH ST STE 100Portland, OR 97232-2099
Mailing Address500 Ne Multnomah St Ste 100Portland, OR 97232-2099 · (503) 813-3860
Phone(360) 571-3005
Sole ProprietorNo
Enumeration DateApril 14, 2022
Last NPPES UpdateAugust 5, 20262 updates tracked since enumeration
NPPES CertifiedAugust 5, 2026
✔ NPI 1881337269 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in OR · PG226671
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
500 NE MULTNOMAH ST STE 100, Portland, OR 97232
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Nathan Joseph Stumpf 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.

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
$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
$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. 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
JENNIFER ANN BLACK MD
Emergency Medicine (Hospice and Palliative Medicine)
500 NE MULTNOMAH ST STE 100
PORTLAND, OR 97232
Multnomah County (800) 813-2000

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 Nathan Stumpf's NPI number?

The NPI number for Nathan Stumpf is 1881337269. It was assigned to this individual provider in the NPPES registry on April 14, 2022.

Where is Nathan Stumpf located?

Nathan Stumpf practices at 500 NE Multnomah St Ste 100, Portland, OR 97232. The listed phone number is (360) 571-3005.

What is Nathan Stumpf's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Nathan Stumpf enrolled in Medicare?

Yes. Nathan Stumpf is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Nathan Stumpf was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days 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.