DR. MARGARET K MERRIFIELD M.D.
NPI 1568517480
Family Medicine in Richland, WA

Active since January 23, 2007Opted out of Medicare · through Apr 1, 2028
4960 RAU ST, RICHLAND, WA 99352(509) 628-3060(509) 628-3024 Get Directions Write a Review

NPPES record last updated: January 8, 2009. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Margaret K Merrifield M.d. NPPES

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

DR. MARGARET K MERRIFIELD M.D. (NPI 1568517480) is an individual family medicine provider in Richland, Washington, licensed in Washington (MD00031118) and active in the NPI registry since January 2007. She has opted out of Medicare through April 1, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1568517480
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MARGARET K MERRIFIELDCredential: M.D.
Location Address4960 RAU STRichland, WA 99352-7829
Mailing AddressPo Box 460Richland, WA 99352-0460 · (509) 628-3060 · Fax (509) 628-3024
Fax(509) 628-3024
Sole ProprietorYes
Enumeration DateJanuary 23, 2007
Last NPPES UpdateJanuary 8, 2009
NPI 1568517480 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 · MD00031118
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.

4960 RAU ST, Richland, WA 99352

Other Names 1

Professional Name (2)Dr. Margaret K Merrifield M.d.

Other Identifiers 1

Medicare PINGAB37102

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Dr. Margaret K Merrifield M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 1, 2016 through April 1, 2028.

Opt-Out Effective DateApril 1, 2016
Opt-Out In Effect ThroughApril 1, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99352 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
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
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.

Other Providers at the Same Location NPPES

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

Family Medicine
4960 RAU ST
RICHLAND, WA 99352

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 Margaret Merrifield's NPI number?

The NPI number for Margaret Merrifield is 1568517480. It was assigned to this individual provider in the NPPES registry on January 23, 2007. The provider is also known as Dr. Margaret K Merrifield M.D..

Where is Margaret Merrifield located?

Margaret Merrifield practices at 4960 Rau St, Richland, WA 99352. The listed phone number is (509) 628-3060.

What is Margaret Merrifield's specialty?

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

Is Margaret Merrifield enrolled in Medicare?

No. Margaret Merrifield has opted out of Medicare through April 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Margaret Merrifield was last updated on January 8, 2009. NPI Profile syncs with the weekly NPPES data releases published by CMS.