MS. THERESA CHAN M.D.
NPI 1043254576
Family Medicine in Medford, OR

Active since June 15, 2006PECOS EnrolledAccepts Medicare Assignment
2825 E BARNETT ROAD, ROGUE VALLEY MEDICAL CENTER, MEDFORD, OR 97504(541) 789-7000 Get Directions Write a Review

NPPES record last updated: June 23, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Ms. Theresa Chan M.d. NPPES

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

MS. THERESA CHAN M.D. (NPI 1043254576) is an individual family medicine provider in Medford, Oregon, licensed in Oregon (MD152431) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (2001).

NPPES Registry Identity

NPI1043254576
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMS. THERESA CHANCredential: M.D.
Location Address2825 E BARNETT ROAD, ROGUE VALLEY MEDICAL CENTERMedford, OR 97504
Mailing Address2640 E Barnett Road, #e-333 Southern Oregon Hospitalists, PcMedford, OR 97504 · (541) 282-6770 · Fax (541) 282-6771
Sole ProprietorNo
Medical School CMSStanford University School Of MedicineGraduated 2001
Enumeration DateJune 15, 2006
Last NPPES UpdateJune 23, 2011
✔ NPI 1043254576 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in OR · MD152431✔ Licensed in CA · A83176
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
2825 E BARNETT ROAD, Medford, OR 97504

Other Identifiers 4

Medicaid00A831760CA
Medicare ID-Type Unspecified00A831761CA
Medicare PINR158469OR
Medicare UPINI24889CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Theresa Chan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7618929217
PECOS Enrollment IDI20050211000202
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 Reassignments

2

Medicare enrollment records show Theresa Chan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Federally Qualified Health Center (FQHC)
550 E WASHINGTON BLVD
Crescent City, CA 95531
  • Reassigned Medicare billing, California enrollment
  • 175 clinicians in this Medicare group
Multi-Specialty
1315 ALHAMBRA BLVD STE 210
Sacramento, CA 95816
  • Reassigned Medicare billing, California enrollment
  • 4,479 clinicians in this Medicare group

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

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
84 services83 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
16 services16 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97504 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
$84.82 typical visit price
range $54.96 – $166.64
Typical copayment $21.20 (range $13.74 – $41.66)
Most-billed visit code 99203
Established Patient
$97.16 typical visit price
range $17.68 – $136.19
Typical copayment $24.29 (range $4.42 – $34.04)
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 11

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

Hospitalist
2825 E BARNETT ROAD
MEDFORD, OR 97504
Hospitalist
2825 E BARNETT ROAD
MEDFORD, OR 97504
Hospitalist
2825 E BARNETT ROAD
MEDFORD, OR 97504
Hospitalist
2825 E BARNETT ROAD
MEDFORD, OR 97504
Hospitalist
2825 E BARNETT ROAD
MEDFORD, OR 97504
Hospitalist
2825 E BARNETT ROAD
MEDFORD, OR 97504
Hospitalist
2825 E BARNETT ROAD
MEDFORD, OR 97504
Internal Medicine
2825 E BARNETT ROAD
MEDFORD, OR 97504

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 Theresa Chan's NPI number?

The NPI number for Theresa Chan is 1043254576. It was assigned to this individual provider in the NPPES registry on June 15, 2006.

Where is Theresa Chan located?

Theresa Chan practices at 2825 E Barnett Road Rogue Valley Medical Center, Medford, OR 97504. The listed phone number is (541) 789-7000.

What is Theresa Chan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Theresa Chan enrolled in Medicare?

Yes. Theresa Chan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Theresa Chan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Theresa Chan reassigns Medicare benefits to 2 organizations: Open Door Community Health Centers (Crescent City, CA) and Sutter Bay Medical Foundation (Sacramento, CA). Each 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 Theresa Chan'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 Theresa Chan was last updated on June 23, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.