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LORIS HWANG SPENCER M. D.
NPI 1851579981
Pediatrics - Adolescent Medicine in Portland, OR

Active since January 31, 2008PECOS Enrolled
3181 SW SAM JACKSON PARK RD, PORTLAND, OR 97239(503) 418-5700(503) 418-5704 Get Directions Write a Review

NPPES record last updated: September 9, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 9, 2024, Jul 21, 2022, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About Loris Hwang Spencer M. D. NPPES

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

LORIS HWANG SPENCER M. D. (NPI 1851579981) is an individual adolescent medicine provider in Portland, Oregon, licensed in Oregon (MD221474) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1851579981
Entity TypeIndividualFemale
Primary Taxonomy2080A0000X
Provider Legal NameLORIS HWANG SPENCERCredential: M. D.
Location Address3181 SW SAM JACKSON PARK RDPortland, OR 97239-3011
Mailing Address3181 Sw Sam Jackson Park RdPortland, OR 97239-3011 · (503) 418-5700 · Fax (503) 418-5704
Phone(503) 418-5700
Fax(503) 418-5704
Sole ProprietorNo
Enumeration DateJanuary 31, 2008
Last NPPES UpdateSeptember 9, 20244 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2024
✔ NPI 1851579981 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatrics · Adolescent MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080A0000X
License✔ Licensed in OR · MD221474
Definition
A pediatrician who specializes in adolescent medicine is a multi-disciplinary healthcare specialist trained in the unique physical, psychological and social characteristics of adolescents, their healthcare problems and needs.
Also ListedPediatricsTaxonomy 208000000X · License A60237 (CA)
Also ListedGeneral PracticeTaxonomy 208D00000X · License MD221474 (OR)
3181 SW SAM JACKSON PARK RD, Portland, OR 97239
Open in Google Maps ↗

Secondary Practice Locations 2

Location 110833 Le Conte AveLos Angeles, CA 90095-0001 · Phone (310) 825-0867
Location 2Ucsf Department Of Pediatrics, 505 Parnassus Ave., #M969San Francisco, CA 94143-0001 · Phone (415) 353-2002

Other Identifiers 2

Medicaid8209710WA
OtherA60237CA · Ca Medical License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Loris Hwang Spencer 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 Loris Spencer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Professional Services
Same address
General Practice
3181 SW SAM JACKSON PARK RD
Portland, OR 97239
  • Reassigned Medicare billing, Oregon enrollment
  • 2,212 clinicians in this Medicare group
NPI 1376709535 (503) 494-8311

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

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.

DONALD RICHARD SULLIVAN MD
Internal Medicine (Pulmonary Disease)
3181 SW SAM JACKSON PARK RD, UHN67
PORTLAND, OR 97239
Multnomah County (503) 494-6949
MRS. ANJALEE NIX ROWE NP
Nurse Practitioner (Acute Care)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-3988
REEM HASAN MD
Internal Medicine
3181 SW SAM JACKSON PARK RD, PPV 350
PORTLAND, OR 97239
Multnomah County (503) 494-8562
DR. AMANDA D BALL PSY.D
Psychologist (Clinical)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-6176
SUNSHINE WELSCH LMT
Massage Therapist
3181 SW SAM JACKSON PARK RD, 7D19
PORTLAND, OR 97239
Multnomah County (503) 494-8349
DR. ROBERT GENE MEALER M.D., PH.D.
Psychiatry & Neurology (Psychiatry)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-6176
GREGORY HALL MD
Radiology (Diagnostic Radiology)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 418-0990
DR. BURHAN AHMED MIAN MD
Student in an Organized Health Care Education/Training Program
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-8311

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 Loris Spencer's NPI number?

The NPI number for Loris Spencer is 1851579981. It was assigned to this individual provider in the NPPES registry on January 31, 2008.

Where is Loris Spencer located?

Loris Spencer practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 418-5700.

What is Loris Spencer's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Adolescent Medicine, with taxonomy code 2080A0000X.

Is Loris Spencer enrolled in Medicare?

Yes. Loris Spencer is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Loris Spencer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Loris Spencer reassigns Medicare benefits to University Professional Services (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 Loris Spencer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Loris Spencer accept?

Health plans from PacificSource Health Plans list Loris Spencer 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 Loris Spencer was last updated on September 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.