Dennis Marquez, APRN
NPI 1619564192 · Gerontology Nurse Practitioner · Lake Oswego, OR
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Marquez, APRN is a Gerontology Nurse Practitioner provider in Lake Oswego, OR (NPI 1619564192).
Provider details
- NPI number
- 1619564192
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Male
- Sole proprietor
- No
- License
- 000202010828 (OR)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 124 | 12 |
| Oxycodone Hcl | 89 | 25 |
| Potassium Chloride | 78 | 11 |
| Furosemide | 77 | 11 |
| Tramadol Hcl | 63 | — |
| Warfarin Sodium | 62 | — |
| Atorvastatin Calcium | 60 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-12-30
- Last updated
- 2020-12-30
- Certified
- 2020-12-21
Frequently asked questions
- What is Dennis Marquez's NPI number?
- Dennis Marquez's National Provider Identifier (NPI) is 1619564192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Marquez's specialty?
- Dennis Marquez is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Dennis Marquez located?
- Dennis Marquez's practice location on file with NPPES is 5 Centerpointe Dr Ste 600, Lake Oswego, OR 97035-8662.
- What is Dennis Marquez's phone number?
- The practice phone number listed in the NPPES registry for Dennis Marquez is (503) 603-7355.
- Does Dennis Marquez accept Medicare?
- Dennis Marquez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Marquez's NPI active?
- Yes — Dennis Marquez's NPI (1619564192) is active in the NPPES registry as of the last update on 2020-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.