Arnulfo T. Deray, MD
Internal Medicine Physician · Richland, WA
Arnulfo T. Deray, MD is an internal medicine physician with a practice address in Richland, Washington, and NPI 1063470037, issued on May 1, 2006. Check the license (Washington MD00049111, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Arnulfo T. Deray
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD00049111 WA
227104 MA
Self-reported in NPPES; status is on the state search - Practice location
- 888 Swift Blvd, Richland, WA 99352
- Phone
- (509) 946-4611
- Enumerated
- May 1, 2006
- Record last updated
- May 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (509) 942-2185
- Medicaid ID
- 8509499 WA
- Medicare enrollment
- Enrolled (PECOS I20080404000041); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 888 Swift Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Arnulfo T. Deray in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00049111Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
338 Medicare Part D claims for 127 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 24 claims were for opioids.
Most prescribed
- Pantoprazole Sodium23 claims
- Cefdinir20 claims
- Metoprolol Succinate15 claims
- Oxycodone Hcl15 claims
- Amoxicillin-Clavulanate Potass12 claims
- Potassium Chloride12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $31.92
1 payment: food and beverage; the largest payer was Pfizer Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Kadlec Regional Medical CenterRichland, WA · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Arnulfo T. Deray among 3,079 internal medicine physician records in Washington
Arnulfo T. Deray, MD is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1998 · median 2006 among the 1,852 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
53 internal medicine physician records list a practice address in Richland
They are 53 of the 1,955 NPPES records with a practice address in Richland, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Richland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Michael Benedict, M.D.Richland, WA 993521639134943
- Denise Cinciripini, M.D.Richland, WA 993521104863281
- David Roy Evangelista, MDRichland, WA 993521689600165
- Terri Grant, MDRichland, WA 993521467409847
- Reem Habboushe, M.D.Richland, WA 993521518937895
- Ellen Kim, MDRichland, WA 993521124024229
- Jesus Marcelo, MDRichland, WA 993521457331159
- Maylin Padayatty, MDRichland, WA 993521811932924
Common questions
What is Arnulfo T. Deray, MD's NPI number?
Arnulfo T. Deray, MD's National Provider Identifier (NPI) is 1063470037, issued on May 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Arnulfo T. Deray, MD located?
The NPPES record lists a practice address at 888 Swift Blvd, Richland, WA, 99352. Phone: (509) 946-4611. Providers update this record themselves, so call before visiting.
How can I verify Arnulfo T. Deray, MD's license?
NPPES lists Washington license number MD00049111, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Arnulfo T. Deray, MD prescribe under Medicare Part D?
In 2024, Arnulfo T. Deray, MD had 338 Medicare Part D claims for 127 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Arnulfo T. Deray, MD's MIPS final score?
The 2023 MIPS final score is 83.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.