Quick answers
- Which hospitals does John Stillson work at?
- Medicare's official clinician data lists John Stillson at 4 hospitals: Community Hospital of Huntington Park, Hamilton General Hospital, Pioneers Memorial Healthcare District and Scripps Mercy Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Stillson see patients?
- Medicare's clinician data lists 4 practice locations, including Chula Vista, CA, Hamilton, TX and San Diego, CA. Call before your visit to confirm the address.
- What is John Stillson's specialty?
- Medicare lists Family Practice as the primary specialty, and also Gastroenterology.
- Does John Stillson accept Medicare assignment?
- Yes. Medicare's clinician data says John Stillson 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 John Stillson offer telehealth?
- Medicare's clinician data says John Stillson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John Stillson?
- (619) 422-8338, as listed in official Medicare / NPI Registry data.
- What is John Stillson's NPI number?
- 1902556202. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Stillson works
Medicare's Facility Affiliation Data lists John Stillson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Community Hospital of Huntington ParkHuntington Park, CA · Acute Care Hospital · CCN 050091
- Hamilton General HospitalHamilton, TX · Critical Access Hospital · CCN 451392
- Pioneers Memorial Healthcare DistrictBrawley, CA · Acute Care Hospital · CCN 050342
- Scripps Mercy HospitalSan Diego, CA · Acute Care Hospital · CCN 050077
Practice locations
Addresses where John Stillson is enrolled with Medicare (CMS data updated 2026-10-02).
- 340 4th Ave, Suite 2Chula Vista, CA 91910 (619) 422‑8338
- 353 Church Ave, Suite AChula Vista, CA 91910 (619) 585‑8883
- 400 N Brown StHamilton, TX 76531 (254) 386‑1600
- 4077 5th AveSan Diego, CA 92103 (619) 359‑6600
Group practices
Medicare enrollment lists John Stillson as a member of these groups (CMS data updated 2026-10-02).
- On Call Specialists Medical Group of San Diego Inc144 clinicians in the group
- Hamilton County Hospital District22 clinicians in the group
- Southern California Health Providers Medical GRP Inc5 clinicians in the group
- Gregory J Wiener M D Professional Corporation3 clinicians in the group
Specialties
- Family Practiceprimary
- Gastroenterologyalso
Other family doctors in Chula Vista
Clinicians with the same Medicare primary specialty in Chula Vista, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1902556202 |
| 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