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SONJA MADDOX MD
NPI 1295732113
Family Medicine in Renton, WA

Active since July 07, 2005PECOS EnrolledAccepts Medicare Assignment
601 S CARR RD, SUITE 100, RENTON, WA 98055(425) 227-3700 Get Directions Write a Review

NPPES record last updated: June 16, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Sonja Maddox Md NPPES

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

SONJA MADDOX MD (NPI 1295732113) is an individual family medicine provider in Renton, Washington, licensed in Washington (MD00040495) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS, is affiliated with Valley Medical Center, and is a graduate of University Of Washington School Of Medicine (1999).

NPPES Registry Identity

NPI1295732113
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameSONJA MADDOXCredential: MD
Location Address601 S CARR RD, SUITE 100Renton, WA 98055-5866
Mailing Address601 S Carr Rd, Suite 100Renton, WA 98055-5866 · (425) 227-3700 · Fax (425) 227-3115
Phone(425) 227-3700
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 1999
Enumeration DateJuly 7, 2005
Last NPPES UpdateJune 16, 2021
NPPES CertifiedJune 16, 2021
✔ NPI 1295732113 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in WA · MD00040495
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.
601 S CARR RD, Renton, WA 98055
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Other Identifiers 1

Medicaid8312449WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Sonja Maddox Md 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 ID5193750883
PECOS Enrollment IDI20050930000656
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.

Areas of Expertise CMS Part B claims 5

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 moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
95 services58 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
42 services42 patients
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.
36 services34 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
21 services21 patients
Influenza vaccine, inactivated 90653
The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.
18 services18 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Valley Medical Center

Acute Care Hospitals · Renton, WA
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number500088
Location400 S 43rd StRenton, WA 98055 · King County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98055 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
$97.43 typical visit price
range $63.67 – $189.37
Typical copayment $24.35 (range $15.91 – $47.34)
Most-billed visit code 99203
Established Patient
$111.00 typical visit price
range $21.12 – $155.00
Typical copayment $27.75 (range $5.28 – $38.75)
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 18

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

ARKADIY B. TKACHEV M.D.
Family Medicine
601 S CARR RD, SUITE 100
RENTON, WA 98055
King County (415) 227-3700
DR. BENJAMIN REED JOHNSON D.M.D.
Dentist (Oral and Maxillofacial Surgery)
601 S CARR RD, SUITE 300
RENTON, WA 98055
King County (425) 466-1185
DR. LISE K ALEXANDER MD
Family Medicine
601 S CARR RD, SUITE 100
RENTON, WA 98055
King County (425) 227-3700
MAXOR NATIONAL PHARMACY
Pharmacy Technician
601 S CARR RD
RENTON, WA 98055
King County (425) 227-3122
MAUREEN BURNS PTA
Physical Therapy Assistant
601 S CARR RD
RENTON, WA 98055
King County (425) 227-3723
MS. SHARYL K.N. KAMIHARA PT
Physical Therapist
601 S CARR RD, SUITE 100
RENTON, WA 98055
King County (425) 227-3700
MS. JAN K. SANGDER PT
Physical Therapist
601 S CARR RD, SUITE 100
RENTON, WA 98055
King County (425) 227-3700
DR. LAN ALICE CHEN DDS, MSD
Dentist
601 S CARR RD, SUITE 400
RENTON, WA 98055
King County (425) 228-1033

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 Sonja Maddox's NPI number?

The NPI number for Sonja Maddox is 1295732113. It was assigned to this individual provider in the NPPES registry on July 7, 2005.

Where is Sonja Maddox located?

Sonja Maddox practices at 601 S Carr Rd Suite 100, Renton, WA 98055. The listed phone number is (425) 227-3700.

What is Sonja Maddox's specialty?

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

Is Sonja Maddox enrolled in Medicare?

Yes. Sonja Maddox 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.

What insurance does Sonja Maddox accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Sonja Maddox 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.

Is Sonja Maddox affiliated with any hospitals?

According to CMS data, Sonja Maddox is affiliated with Valley Medical Center.

When was this NPI record last updated?

The NPPES record for Sonja Maddox was last updated on June 16, 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.