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Family Practice

Marion L. Gardner Jr., MD

Works at hospitals in Hillsboro, OR · Oregon

Summary

Dr. Marion L. Gardner Jr., MD is a family doctor at 10245 NW Glencoe Rd, North Plains, OR 97133. Phone: (503) 647-9261. May accept Medicare assignment. In 2024, Marion L. Gardner Jr. had 162 Original Medicare patients and 3,965 services. NPI 1740382480. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 10245 NW Glencoe Rd, North Plains, OR 97133 · Directions
  • Phone: (503) 647‑9261
  • Medicare: May accept Medicare assignment
  • Hospital: Hillsboro Medical Center
  • Medical school: Oregon Health Sciences University School Of Medicine · graduated 1990 (36 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Marion L. Gardner Jr., joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Marion L. Gardner Jr. accept Medicare assignment?
Medicare's clinician data says Marion L. Gardner Jr. may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Marion L. Gardner Jr. see?
In 2024, CMS data shows 162 Original Medicare patients and 3,965 services for Marion L. Gardner Jr.. This counts Original Medicare only and measures volume, not quality.
What is Marion L. Gardner Jr.'s NPI number?
1740382480. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Marion L. Gardner Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients162
Services billed to Medicare3,965
Different services or procedures65
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, methylprednisolone acetate, 1 mg (J1010)1,778 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)287 services
  3. Insertion of needle into vein for collection of blood sample (36415)157 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)106 services
  5. Testing for presence of drug, read by direct observation (80305)55 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure57%
  • High cholesterol48%
  • Arthritis36%
  • Diabetes31%
  • Ischemic heart disease19%
  • Heart failure19%

Hospitals where Marion L. Gardner Jr. works

Medicare's Facility Affiliation Data lists Marion L. Gardner Jr. at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Marion L. Gardner Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Family Practice doctors in Oregon →

Other family doctors in Oregon

Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.

All family doctors in Oregon →

Clinician information

CredentialMD
Medical schoolOregon Health Sciences University School Of Medicine
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1740382480
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians