NPPES file of Aug 9, 2026

Dennis Alberto Marquez, APRN

Gerontology Nurse Practitioner · Lake Oswego, OR

Dennis Alberto Marquez, APRN is a gerontology nurse practitioner with a practice address in Lake Oswego, Oregon, and NPI 1619564192, issued on Dec 30, 2020. Check the license (Oregon 000202010828, as entered in NPPES) with the Oregon 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619564192
Name
Dennis Alberto Marquez
Credential
APRN
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
000202010828 OR
Self-reported in NPPES; status is on the state search
Practice location
5 Centerpointe Dr Ste 600, Lake Oswego, OR 97035
Phone
(503) 603-7355
Enumerated
Dec 30, 2020
Record last updated
Dec 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 5 Centerpointe Dr Ste 600

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Adam Bailey, PA-CPhysician Assistant1306096185
  2. Pamela Bosa, NPFamily Nurse Practitioner1528130713
  3. Krisa Fenton, FNPFamily Nurse Practitioner1013506187
  4. Anthony HernandezFamily Nurse Practitioner1083130058
  5. Amy Humphrey, DNP, FNP-BCFamily Nurse Practitioner1265887335
  6. Corinne KuszikGerontology Nurse Practitioner1427108885

Verify Dennis Alberto Marquez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 000202010828
    Check 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 Oregon license search

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71% more Medicare Part D claims than the average gerontology nurse practitioner in 2024

2,337 Medicare Part D claims for 115 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 266 claims were for opioids.

  1. Dennis Marquez2,337
  2. Specialty average1,369

Most prescribed

  1. Eliquis124 claims
  2. Oxycodone Hcl89 claims
  3. Potassium Chloride78 claims
  4. Furosemide77 claims
  5. Tramadol Hcl63 claims
  6. Warfarin Sodium62 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.

Dennis Alberto Marquez among 113 gerontology nurse practitioner records in Oregon

Dennis Alberto Marquez, APRN is one of 113 gerontology nurse practitioner records with a practice address in Oregon. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 65% of them.

  • NPI issued2020 · 65% of these records are older, 27% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 67% of these records are
  • Record last updated2020 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in Oregon

There are 113 gerontology nurse practitioner records in Oregon.

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Corinne KuszikLake Oswego, OR 970351427108885
  2. Andrea Pace, FNPLake Oswego, OR 970351700015666
  3. Stefanie Casey, ARNPHood River, OR 970311194060251
  4. Robert Mayer, AGPCNPGresham, OR 970301154753457
  5. Amy Stivers, NPOregon City, OR 970451366867293
  6. Michelle Fray, NPClackamas, OR 970151336616994
  7. Kemble Green, NPClackamas, OR 970151205292703
  8. Susan Fee, ANP GNPCanby, OR 970131598717282

Common questions

What is Dennis Alberto Marquez, APRN's NPI number?

Dennis Alberto Marquez, APRN's National Provider Identifier (NPI) is 1619564192, issued on Dec 30, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Dennis Alberto Marquez, APRN located?

The NPPES record lists a practice address at 5 Centerpointe Dr Ste 600, Lake Oswego, OR, 97035. Phone: (503) 603-7355. Providers update this record themselves, so call before visiting.

How can I verify Dennis Alberto Marquez, APRN's license?

NPPES lists Oregon license number 000202010828, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Dennis Alberto Marquez, APRN prescribe under Medicare Part D?

In 2024, Dennis Alberto Marquez, APRN had 2,337 Medicare Part D claims for 115 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. Part D covers Medicare prescriptions only.

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.