MS. DIANNA ELIZABETH MARRERO FNP-C
NPI 1790547693
Nurse Practitioner - Family in Walla Walla, WA

Active since January 25, 2024PECOS EnrolledAccepts Medicare Assignment
1111 S 2ND AVE, WALLA WALLA, WA 99362(509) 897-3700(509) 897-8589 Get Directions Write a Review

NPPES record last updated: December 9, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ms. Dianna Elizabeth Marrero Fnp-c NPPES

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

MS. DIANNA ELIZABETH MARRERO FNP-C (NPI 1790547693) is an individual family provider in Walla Walla, Washington, licensed in Washington (AP61521106) and active in the NPI registry since January 2024. She is enrolled in Medicare PECOS, is affiliated with Providence St Mary Medical Center, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1790547693
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMS. DIANNA ELIZABETH MARREROCredential: FNP-C
Location Address1111 S 2ND AVEWalla Walla, WA 99362-4118
Mailing Address1111 S 2nd AveWalla Walla, WA 99362-4118 · (509) 897-3700
Fax(509) 897-8589
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateJanuary 25, 2024
Last NPPES UpdateDecember 9, 2024
NPPES CertifiedDecember 9, 2024
NPI 1790547693 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in WA · AP61521106
1111 S 2ND AVE, Walla Walla, WA 99362

Accepted 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

Ms. Dianna Elizabeth Marrero Fnp-c 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 ID4082054762
PECOS Enrollment IDI20240429000775
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 6

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.
54 services44 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.
26 services26 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.
15 services15 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.
13 services13 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.
12 services12 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.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

Providence St Mary Medical Center

Acute Care Hospitals · Walla Walla, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500002
Location401 W Poplar StWalla Walla, WA 99362 · Walla Walla County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99362 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 20

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

Dietitian, Registered
1111 S 2ND AVE
WALLA WALLA, WA 99362
Pharmacy (Community/Retail Pharmacy)
1111 S 2ND AVE
WALLA WALLA, WA 99362
Nurse Practitioner (Pediatrics)
1111 S 2ND AVE
WALLA WALLA, WA 99362
Family Medicine
1111 S 2ND AVE
WALLA WALLA, WA 99362
Pediatrics
1111 S 2ND AVE
WALLA WALLA, WA 99362
Nurse Practitioner (Family)
1111 S 2ND AVE
WALLA WALLA, WA 99362
Nurse Practitioner (Obstetrics & Gynecology)
1111 S 2ND AVE
WALLA WALLA, WA 99362
Registered Nurse (Case Management)
1111 S 2ND AVE
WALLA WALLA, WA 99362

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 Dianna Marrero's NPI number?

The NPI number for Dianna Marrero is 1790547693. It was assigned to this individual provider in the NPPES registry on January 25, 2024.

Where is Dianna Marrero located?

Dianna Marrero practices at 1111 S 2nd Ave, Walla Walla, WA 99362. The listed phone number is (509) 897-3700.

What is Dianna Marrero's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Dianna Marrero enrolled in Medicare?

Yes. Dianna Marrero 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 Dianna Marrero accept?

Health plans from Moda Health Plan, Inc., Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Dianna Marrero 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 Dianna Marrero affiliated with any hospitals?

According to CMS data, Dianna Marrero is affiliated with Providence St Mary Medical Center.

When was this NPI record last updated?

The NPPES record for Dianna Marrero was last updated on December 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.