Quick answers
- Which hospitals does Dorien A. Johnk work at?
- Medicare's official clinician data lists Dorien A. Johnk at 1 hospital: Stanford Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dorien A. Johnk see patients?
- Medicare's clinician data lists 3 practice locations, including Stanford, CA and Redwood City, CA. Call before your visit to confirm the address.
- What is Dorien A. Johnk's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Dorien A. Johnk accept Medicare assignment?
- Yes. Medicare's clinician data says Dorien A. Johnk 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 Dorien A. Johnk offer telehealth?
- Medicare's clinician data says Dorien A. Johnk offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Dorien A. Johnk?
- (650) 723-4000, as listed in official Medicare / NPI Registry data.
- What is Dorien A. Johnk's NPI number?
- 1902469364. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dorien A. Johnk works
Medicare's Facility Affiliation Data lists Dorien A. Johnk at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Stanford Health CareStanford, CA · Acute Care Hospital · CCN 050441
Practice locations
Addresses where Dorien A. Johnk is enrolled with Medicare (CMS data updated 2026-10-02).
- 300 Pasteur DrStanford, CA 94305 (650) 723‑4000
- 420 Broadway StRedwood City, CA 94063 (650) 723‑4000
- 450 Broadway StRedwood City, CA 94063 (650) 723‑4000
Group practices
Medicare enrollment lists Dorien A. Johnk as a member of this group (CMS data updated 2026-10-02).
- Stanford Health Care3,122 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Stanford
Clinicians with the same Medicare primary specialty in Stanford, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1902469364 |
| 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