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ROBERT SIXTO DIAZ PA-C
NPI 1356328892
Physician Assistant in Richland, WA

Active since December 27, 2005PECOS EnrolledAccepts Medicare Assignment
1050 GILMORE, SUITE, RICHLAND, WA 99352(509) 943-5300(509) 943-5331 Get Directions Write a Review

NPPES record last updated: October 22, 2012. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Robert Sixto Diaz Pa-c NPPES

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

ROBERT SIXTO DIAZ PA-C (NPI 1356328892) is an individual physician assistant in Richland, Washington, licensed in Washington (PA10004234) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Kadlec Regional Medical Center, and is a graduate of Other (2001).

NPPES Registry Identity

NPI1356328892
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameROBERT SIXTO DIAZCredential: PA-C
Location Address1050 GILMORE, SUITERichland, WA 99352
Mailing Address1050 Gilmore, SuiteRichland, WA 99352 · (509) 943-5300 · Fax (509) 943-5331
Phone(509) 943-5300
Fax(509) 943-5331
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateDecember 27, 2005
Last NPPES UpdateOctober 22, 2012
✔ NPI 1356328892 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in WA · PA10004234
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
1050 GILMORE, SUITE, Richland, WA 99352
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Other Identifiers 3

Medicare ID-Type UnspecifiedAB25745WA
Medicaid8359242WA
Medicare UPINP45555

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

Robert Sixto Diaz Pa-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 ID5395722474
PECOS Enrollment IDI20040707000175
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 11

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.
209 services134 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
105 services105 patients
X-ray of lower and sacral spine, minimum of 4 views 72110
An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.
62 services62 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.
50 services46 patients
Mri scan of lower spinal canal without contrast 72148
An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.
34 services34 patients
X-ray of middle spine, 2 views 72070
An X-ray of the middle spine, or thoracic spine, involves capturing two different images of the area. This non-invasive procedure uses small amounts of radiation to visualize the bones and tissues in your back, helping to identify any abnormalities or injuries.
21 services21 patients

Hospital Affiliations CMS Care Compare

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

Kadlec Regional Medical Center

Acute Care Hospitals · Richland, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500058
Location888 Swift BlvdRichland, WA 99352 · Benton County
Emergency services Birthing friendly

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
$71.29 typical visit price
range $18.56 – $141.11
Typical copayment $17.82 (range $4.64 – $35.27)
Most-billed visit code 99213
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.

MR. BOBBY LINARES PA-C
Physician Assistant (Medical)
1050 GILMORE, SUITE
RICHLAND, WA 99352
Benton County (509) 943-5300

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 Robert Diaz's NPI number?

The NPI number for Robert Diaz is 1356328892. It was assigned to this individual provider in the NPPES registry on December 27, 2005.

Where is Robert Diaz located?

Robert Diaz practices at 1050 Gilmore, Suite, Richland, WA 99352. The listed phone number is (509) 943-5300.

What is Robert Diaz's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Robert Diaz enrolled in Medicare?

Yes. Robert Diaz 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 Robert Diaz accept?

Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Robert Diaz 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 Robert Diaz affiliated with any hospitals?

According to CMS data, Robert Diaz is affiliated with Kadlec Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Robert Diaz was last updated on October 22, 2012. NPI Profile syncs with the weekly NPPES data releases published by CMS.