MARIE K. YAMAMOTOYA MD
NPI 1487732111
Family Medicine in Fairfield, CA

Active since November 01, 2006PECOS EnrolledAccepts Medicare Assignment
470 CHADBOURNE RD STE A, FAIRFIELD, CA 94534(707) 419-8989 Get Directions Write a Review

NPPES record last updated: January 29, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Marie K. Yamamotoya Md NPPES

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

MARIE K. YAMAMOTOYA MD (NPI 1487732111) is an individual family medicine provider in Fairfield, California, licensed in California (A61112) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and is a graduate of University Of Washington School Of Medicine (1995).

NPPES Registry Identity

NPI1487732111
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMARIE K. YAMAMOTOYACredential: MD
Location Address470 CHADBOURNE RD STE AFairfield, CA 94534-9620
Mailing Address2855 E Manoa Rd Ste 105Honolulu, HI 96822-1854 · (916) 802-7601 · Fax (808) 515-4184
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 1995
Enumeration DateNovember 1, 2006
Last NPPES UpdateJanuary 29, 2025
NPPES CertifiedJanuary 29, 2025
NPI 1487732111 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in CA · A61112
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.
470 CHADBOURNE RD STE A, Fairfield, CA 94534

Other Identifiers 1

Medicaid00A611120CA

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

Marie K. Yamamotoya 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 ID2567365646
PECOS Enrollment IDI20140721001985
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.
116 services89 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.
79 services72 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.
41 services33 patients
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438
An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.
15 services15 patients
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677
The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

The Queens Medical Center

Acute Care Hospitals · Honolulu, HI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number120001
Location1301 Punchbowl StHonolulu, HI 96813 · Honolulu County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94534 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
$98.85 typical visit price
range $65.02 – $191.95
Typical copayment $24.71 (range $16.25 – $47.98)
Most-billed visit code 99203
Established Patient
$113.05 typical visit price
range $21.86 – $157.69
Typical copayment $28.26 (range $5.46 – $39.42)
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 20

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

Pediatrics (Pediatric Infectious Diseases)
470 CHADBOURNE RD STE A
FAIRFIELD, CA 94534
Registered Nurse
470 CHADBOURNE RD STE A
FAIRFIELD, CA 94534
Physician Assistant
470 CHADBOURNE RD STE A
FAIRFIELD, CA 94534
Social Worker (Clinical)
470 CHADBOURNE RD STE A
FAIRFIELD, CA 94534
Registered Nurse
470 CHADBOURNE RD STE A
FAIRFIELD, CA 94534
Family Medicine
470 CHADBOURNE RD STE A
FAIRFIELD, CA 94534
Nurse Practitioner (Family)
470 CHADBOURNE RD STE A
FAIRFIELD, CA 94534
Family Medicine
470 CHADBOURNE RD STE A
FAIRFIELD, CA 94534

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 Marie Yamamotoya's NPI number?

The NPI number for Marie Yamamotoya is 1487732111. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is Marie Yamamotoya located?

Marie Yamamotoya practices at 470 Chadbourne Rd Ste A, Fairfield, CA 94534. The listed phone number is (707) 419-8989.

What is Marie Yamamotoya's specialty?

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

Is Marie Yamamotoya enrolled in Medicare?

Yes. Marie Yamamotoya 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.

Is Marie Yamamotoya affiliated with any hospitals?

According to CMS data, Marie Yamamotoya is affiliated with The Queens Medical Center.

When was this NPI record last updated?

The NPPES record for Marie Yamamotoya was last updated on January 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.