Quick answers
- Which hospitals does James L. Neifing work at?
- Medicare's official clinician data lists James L. Neifing at 5 hospitals: Legacy Good Samaritan Medical Center, Legacy Meridian Park Medical Center, OHSU Hospital and Clinics, Providence Newberg Medical Center and Providence St Vincent Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James L. Neifing see patients?
- Medicare's clinician data lists 1 practice location in Portland, OR. Call before your visit to confirm the address.
- What is James L. Neifing's specialty?
- Medicare lists Endocrinology as the primary specialty.
- Does James L. Neifing accept Medicare assignment?
- Yes. Medicare's clinician data says James L. Neifing accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does James L. Neifing offer telehealth?
- Medicare's clinician data says James L. Neifing offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for James L. Neifing?
- (503) 297-3336, as listed in official Medicare / NPI Registry data.
- What is James L. Neifing's NPI number?
- 1437207941. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James L. Neifing works
Medicare's Facility Affiliation Data lists James L. Neifing at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Legacy Good Samaritan Medical CenterPortland, OR · Acute Care Hospital · CCN 380017
- Legacy Meridian Park Medical CenterTualatin, OR · Acute Care Hospital · CCN 380089
- OHSU Hospital and ClinicsPortland, OR · Acute Care Hospital · CCN 380009
- Providence Newberg Medical CenterNewberg, OR · Acute Care Hospital · CCN 380037
- Providence St Vincent Medical CenterPortland, OR · Acute Care Hospital · CCN 380004
Practice locations
Addresses where James L. Neifing is enrolled with Medicare (CMS data updated 2026-10-02).
- 9135 SW Barnes Rd, Suite 985Portland, OR 97225 (503) 297‑3336
Group practices
Medicare enrollment lists James L. Neifing as a member of this group (CMS data updated 2026-10-02).
- Portland Diabetes and Endocrinology10 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Portland
Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1437207941 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians