NPPES file of Aug 9, 2026

Matthew Ryan Knouse, MD

Diagnostic Radiology Physician · San Juan, PR

Matthew Ryan Knouse, MD is a diagnostic radiology physician with a practice address in San Juan, Puerto Rico, and NPI 1477045284, issued on Jun 6, 2018. Check the license with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1477045284
Name
Matthew Ryan Knouse
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
MD479088 PA
TPME5446 FL
M-2527 GU
MTL-2026-010 GU
MT215706 PA
and 1 more
Self-reported in NPPES; status is on the state search
Practice location
53 Calle Palmeras Ste 601, San Juan, PR 00901
Phone
(787) 334-1435
Enumerated
Jun 6, 2018
Record last updated
Jul 28, 2026
Medicare enrollment
Enrolled (PECOS I20260407003750); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Verify Matthew Ryan Knouse in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Puerto Rico board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Puerto Rico license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

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.

  1. Qualityout of 100 · 30% of the final score80.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $97.23

2 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Inc. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Matthew Knouse$97.23
  2. Specialty average$2,488.38

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 16+ group practices

  1. Advanced Radiology SolutionsSan Juan, PR
  2. Cal Devon Urgent Care IncMorton Grove, IL
  3. Christiana Care Pennsylvania IncGlen Mills, PA
  4. Coastal Imaging LLCSan Juan, PR
  5. Florida Radiology Associates LLCSan Juan, PR
  6. Gifford Medical Center IncRandolph, VT
  7. Guadalupe CountySanta Rosa, NM
  8. Guam Healthcare Development IncorporatedDededo, GU
  9. Hartsville Medical Group LLCMetairie, LA
  10. Huron Regional Medical Center IncHuron, SD
  11. Knd Development 59 LLCGreensboro, NC
  12. Pennsylvania Radiology Associates PCSan Juan, PR
  13. Radiology Associates OF North Carolina PCSan Juan, PR
  14. Radiology Associates OF South Carolina LLCGreenville, SC
  15. Rfc Radiology Associates LLCPhiladelphia, PA
  16. Roosevelt County Special Hospital DistrictPortales, NM

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Matthew Ryan Knouse among 210 diagnostic radiology physician records in Puerto Rico

Matthew Ryan Knouse, MD is one of 210 diagnostic radiology physician records with a practice address in Puerto Rico. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 94% of them.

  • NPI issued2018 · 94% of these records are older, 3% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2018 · median 1996 among the 148 with a school on file
  • Record last updated2026 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

83 diagnostic radiology physician records list a practice address in San Juan

They are 83 of the 8,960 NPPES records with a practice address in San Juan, and 210 diagnostic radiology physician records in Puerto Rico.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Felipe Arias, M.D.San Juan, PR 009011336137462
  2. Carmen Alvarez-Villar, M.D.Santurce, PR 009071427153931
  3. Juan Cancio Acevedo, MDSan Juan, PR 009071760432223
  4. Marga Cardona Duran, MDSan Juan, PR 009071528057841
  5. Tomas Jimenez, MDSan Juan, PR 009071184613499
  6. Tomas Jimenez Chafey, M.D.San Juan, PR 009071619145018
  7. Jose Landron Guardiola, MDSan Juan, PR 009071588653570
  8. Euyen Perez, M.D.San Juan, PR 009071700053261

Common questions

What is Matthew Ryan Knouse, MD's NPI number?

Matthew Ryan Knouse, MD's National Provider Identifier (NPI) is 1477045284, issued on Jun 6, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Ryan Knouse, MD located?

The NPPES record lists a practice address at 53 Calle Palmeras Ste 601, San Juan, PR, 00901. Phone: (787) 334-1435. Providers update this record themselves, so call before visiting.

How can I verify Matthew Ryan Knouse, MD's license?

Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

What is Matthew Ryan Knouse, 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.