Dr. Roy Paul Mathews , DO
Internal Medicine • Seattle, WA
1334 Terry Ave
Seattle, WA 981012747
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on August 29, 2006; this date does not establish years in practice.
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Published CMS data list 478 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 99233 — Subsequent hospital care with moderate levelof medical decision making: 342 service units.
- 99232 — Subsequent hospital care with moderate levelof medical decision making: 136 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 77 Medicare Part D prescriptions, including refills, in 2017.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2017. Published rows only; this is not a quality measure.
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Published Part D records, 2017:
- Gabapentin — 18 prescription fills, including refills.
- Atorvastatin Calcium — 18 prescription fills, including refills.
- Oxycodone Hcl — 16 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2017. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 5 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 3,770 in 2019 to 478 in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019–2023.
Practice Location & Contact Primary Location
1334 Terry Ave
Seattle, WA 981012747
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $54,473 in 2023
The total amount Medicare approved for these services in 2023. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023.
Paid by Medicare
About $41,388 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023.
30-day fills
77 standardized 30-day fills in 2017
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$797 in 2017
The total cost of these prescriptions in 2017, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2017.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $28.29 in 2021
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2021.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Seattle and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Mathews are from 2023.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Mathews are from 2017.
821 active clinicians are listed under Internal Medicine with a practice address in Seattle, WA (3,081 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Seattle
26.8% of these 821 clinicians have the CMS telehealth indicator.
49.7% of these 821 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 87% from 3,770 in 2019 to 478 in 2023.
- 2019: 3,770
- 2020: 4,293
- 2021: 3,436
- 2022: 1,619
- 2023: 478
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Medicare-allowed amount
Medicare-allowed amount decreased 88% from $469,102 in 2019 to $54,473 in 2023.
- 2019: $469,102
- 2020: $545,949
- 2021: $412,665
- 2022: $173,931
- 2023: $54,473
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Paid by Medicare
Paid by Medicare decreased 89% from $368,921 in 2019 to $41,388 in 2023.
- 2019: $368,921
- 2020: $432,448
- 2021: $328,554
- 2022: $138,514
- 2023: $41,388
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2017 only.
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30-day fills
CMS data for 30-day fills are available for 2017 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2017 only.
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2021 only.
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2017), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $28.29.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Shionogi Inc |
Food and Beverage
In-kind items and services
|
Fetroja | General | $28.29 |
Source: CMS Open Payments, program year 2021, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2022 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2023; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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342 | 23 | $250.00 | $125.95 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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136 | 13 | $140.00 | $83.81 |
Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2017.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Gabapentin | Gabapentin | 18 | 355 | $212.44 | — |
| Atorvastatin Calcium | Atorvastatin Calcium | 18 | 327 | $185.11 | 11 |
| Oxycodone Hcl | Oxycodone Hcl | 16 | 82 | $167.67 | — |
| Pantoprazole Sodium | Pantoprazole Sodium | 14 | 220 | $126.78 | — |
| Omeprazole | Omeprazole | 11 | 214 | $104.83 | — |
Source: CMS Part D by Provider and Drug, 2017; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-08-12NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Physical Medicine & Rehabilitation
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Internal Medicine
Doctor of Medicine (M.D.)
Physical Medicine & Rehabilitation
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 10618 NE 155TH PL, BOTHELL, WA 980115770 (Tel: 2064372549)
Registered at 1334 TERRY AVE, SEATTLE, WA 981012747 (Tel: 2069226500)
NPI status registered as active in NPPES database
Registered at 10631 8TH AVE NE, SEATTLE, WA 981257213 (Tel: 2063642050)
Registered at 505 S 336TH ST, SUITE 600, FEDERAL WAY, WA 980036328 (Tel: 2538386180)
Recorded as ROY MATHEWS, DO
Internal Medicine (license number reported to NPPES: WA OP00001488)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Seattle
- Dr. Darell Kumar, DO
- Dr. Daniel Coffin, DO
- Dr. Chang Liu, DO
- Dr. Brian Wood, MD
- Dr. Sara Jackson, MD
- Dr. Gary Martz, DO
Mailing Address
10618 Ne 155th Pl
Bothell, WA 980115770
Phone: 2064372549