Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MATTHEW S RAY DO
NPI 1275952541
Internal Medicine - Nephrology in Spokane, WA

Q: What is Matthew Ray's NPI number?

The NPI number for Matthew Ray is 1275952541. It was assigned to this individual provider in the NPPES registry on April 15, 2014.

Q: What is Matthew Ray's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Ray was last updated on October 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.

Active since April 15, 2014PECOS EnrolledAccepts Medicare Assignment

507 S WASHINGTON ST STE 101, SPOKANE, WA 99204(509) 271-7365(509) 271-0202 Get Directions Write a Review

NPPES record last updated: October 12, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 12, 2026, Dec 2, 2020, Jul 11, 2018 and 1 more (4 updates tracked since 2018).

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About Matthew S Ray Do NPPES

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

MATTHEW S RAY DO (NPI 1275952541) is an individual nephrology provider in Spokane, Washington, licensed in Washington (OP60645891) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Deaconess Medical Center, and maintains a secondary practice location in Spokane.

NPPES Registry Identity

NPI1275952541

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameMATTHEW S RAYCredential: DO

Location Address507 S WASHINGTON ST STE 101Spokane, WA 99204-2604

Mailing Address507 S Washington St Ste 101Spokane, WA 99204-2604 · (509) 271-0736 · Fax (509) 271-0202

Phone(509) 271-7365

Fax(509) 271-0202

Sole ProprietorYes

Medical School CMSLake Erie College Of Osteopathic Medicine, ErieGraduated 2014

Enumeration DateApril 15, 2014

Last NPPES UpdateOctober 12, 20264 updates tracked since enumeration

NPPES CertifiedOctober 12, 2026

✔ NPI 1275952541 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in WA · OP60645891

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

507 S WASHINGTON ST STE 101, Spokane, WA 99204

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Secondary Practice Location 1

Location 1104 W 5th Ave, Ste 200WSpokane, WA 99204-4880 · Phone (509) 624-2313 · Fax (509) 459-0686

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Matthew S Ray Do 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 ID143580118

PECOS Enrollment IDI20180213000417

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.

Medicare Billing Reassignments

Medicare enrollment records show Matthew Ray reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pacific Northwest Kidney And Hypertension Institute PLLC

Same address

Nephrology

507 S WASHINGTON ST STE 101
Spokane, WA 99204

Reassigned Medicare billing, Washington enrollment
2 clinicians in this Medicare group

NPI 1023950524 (509) 271-7365

Providence Health & Services Washington

0.4 mi

Pulmonary Disease

101 W 8TH AVE, MOTHER GAMELIN CENTER 3RD FLOOR
Spokane, WA 99204

Reassigned Medicare billing, Washington enrollment
862 clinicians in this Medicare group

NPI 1194099390 (509) 474-2072

Multicare Health System

0.6 mi

Internal Medicine

400 E 5TH AVE
Spokane, WA 99202

Reassigned Medicare billing, Washington enrollment
4,383 clinicians in this Medicare group

NPI 1730687161 (509) 838-2531

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 13

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.

Dialysis services, 1 physician visit per month (20 years or older) 90962

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys canâ€™t do their job. A physician visit once a month ensures your treatment is working effectively and adjusts it if necessary. This service is available for individuals aged 20 years and older.

236 services35 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.

161 services127 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

120 services51 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

96 services17 patients

Home dialysis services per month (20 years or older) 90966

Home dialysis services provide kidney treatment for patients aged 20 or older right in their own homes. This service includes necessary equipment, supplies, and support for performing dialysis. It's a convenient option that allows patients to maintain their daily routines while receiving essential care.

89 services14 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

65 services35 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.

57 services50 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

49 services22 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

20 services20 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

18 services18 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.

16 services15 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

14 services14 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Deaconess Medical Center

Acute Care Hospitals · Spokane, WA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500044

LocationW 800 Fifth AvenueSpokane, WA 99210 · Spokane County

Emergency services Birthing friendly

Multicare Valley Hospital

Acute Care Hospitals · Spokane, WA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500119

Location12606 East Mission AvenueSpokane, WA 99216 · Spokane County

Emergency services Birthing friendly

Tacoma General Allenmore Hospital

Acute Care Hospitals · Tacoma, WA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500129

Location315 S Mlk Jr WayTacoma, WA 98405 · Pierce County

Emergency services Birthing friendly

Providence St Joseph Hospital

Critical Access Hospitals · Chewelah, WA

OwnershipVoluntary non-profit - Church

CMS Certification Number501309

Location500 East WebsterChewelah, WA 99109 · Stevens County

Emergency services

Providence Mount Carmel Hospital

Critical Access Hospitals · Colville, WA

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number501326

Location982 East ColumbiaColville, WA 99114 · Stevens County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99204 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.

Other Providers at the Same Location NPPES 7

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

PACIFIC NORTHWEST KIDNEY AND HYPERTENSION INSTITUTE PLLC

Internal Medicine (Nephrology)