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DE-ANN R WILLIAMS M.D.
NPI 1699114843
Internal Medicine - Rheumatology in Yakima, WA

Active since June 20, 2013PECOS EnrolledAccepts Medicare Assignment
88.39/100
CMS Quality Rating
1470 N 16TH AVE, YAKIMA, WA 98902(509) 574-6000(509) 225-2714 Get Directions Write a Review

NPPES record last updated: October 22, 2019. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Oct 22, 2019, Aug 15, 2018, Jun 13, 2016 and 1 more (4 updates tracked since 2016).

About De-ann R Williams M.d. NPPES

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

DE-ANN R WILLIAMS M.D. (NPI 1699114843) is an individual rheumatology provider in Yakima, Washington, licensed in Washington (MD60803850) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, is affiliated with Yakima Valley Memorial, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1699114843
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameDE-ANN R WILLIAMSCredential: M.D.
Location Address1470 N 16TH AVEYakima, WA 98902
Mailing Address3800 Summitview AveYakima, WA 98902-2715 · (509) 248-7849 · Fax (509) 248-8291
Phone(509) 574-6000
Fax(509) 225-2714
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateJune 20, 2013
Last NPPES UpdateOctober 22, 20194 updates tracked since enumeration
✔ NPI 1699114843 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in WA · MD60803850
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD60803850 (WA)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1470 N 16TH AVE, Yakima, WA 98902
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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

De-ann R Williams 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 ID446541270
PECOS Enrollment IDI20180810000180
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 4

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.
278 services176 patients
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.
154 services105 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
34 services30 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.
17 services16 patients

Hospital Affiliations CMS Care Compare 3

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

Yakima Valley Memorial

Acute Care Hospitals · Yakima, WA
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500036
Location2811 Tieton DriveYakima, WA 98902 · Yakima County
Emergency services Birthing friendly

Astria Sunnyside Hospital

Critical Access Hospitals · Sunnyside, WA
1/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number501330
Location1016 Tacoma AvenueSunnyside, WA 98944 · Yakima County
Emergency services

Kittitas Valley Community Hospital

Critical Access Hospitals · Ellensburg, WA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number501333
Location603 South ChestnutEllensburg, WA 98926 · Kittitas County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98902 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
$130.99 typical visit price
range $57.27 – $172.80
Typical copayment $32.74 (range $14.31 – $43.20)
Most-billed visit code 99204
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

88.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality89.25
Promoting Interoperability81
Improvement Activities40

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.

LILLIAN M CASSIDY LMP
Massage Therapist
1470 N 16TH AVE
YAKIMA, WA 98902
Yakima County (509) 574-3300
LISA BENOIT ARNP
Nurse Practitioner
1470 N 16TH AVE
YAKIMA, WA 98902
Yakima County (509) 574-3300
MEMORIAL PHYSICIANS, P.L.L.C.
Neurological Surgery
1470 N 16TH AVE
YAKIMA, WA 98902
Yakima County (509) 574-6030
MRS. HOLLY ANN SPRUNGER DPT
Physical Therapist
1470 N 16TH AVE
YAKIMA, WA 98902
Yakima County (509) 574-6050
CHIN-HEN CHANG MD
Physical Medicine & Rehabilitation
1470 N 16TH AVE
YAKIMA, WA 98902
Yakima County (509) 746-3057
YAKIMA VALLEY MEMORIAL HOSPITAL
Clinic/Center (Physical Therapy)
1470 N 16TH AVE
YAKIMA, WA 98902
Yakima County (509) 574-6050
STEPHEN R SHAUL M.D.
Internal Medicine (Rheumatology)
1470 N 16TH AVE, SUITE D
YAKIMA, WA 98902
Yakima County (509) 574-6000
MR. JOEL E BUFFUM MS, ATL, ATC
Specialist/Technologist (Athletic Trainer)
1470 N 16TH AVE
YAKIMA, WA 98902
Yakima County (509) 941-5746

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 De-ann Williams's NPI number?

The NPI number for De-ann Williams is 1699114843. It was assigned to this individual provider in the NPPES registry on June 20, 2013.

Where is De-ann Williams located?

De-ann Williams practices at 1470 N 16th Ave, Yakima, WA 98902. The listed phone number is (509) 574-6000.

What is De-ann Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is De-ann Williams enrolled in Medicare?

Yes. De-ann Williams 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 De-ann Williams accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list De-ann Williams 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 De-ann Williams affiliated with any hospitals?

According to CMS data, De-ann Williams is affiliated with Yakima Valley Memorial, Astria Sunnyside Hospital and Kittitas Valley Community Hospital.

When was this NPI record last updated?

The NPPES record for De-ann Williams was last updated on October 22, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.