Individual provider Active NPI

John Stillson, MD

  • Family Medicine Physician
  • Chula Vista, CA
National Provider Identifier
1902556202
Registry record updated Nov 5, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
A202111 Issued in CA
Practice address
340 4TH Ave Ste 2
Chula Vista, CA 91910-3883
Phone
(619) 422-8338
NPI assigned
Mar 28, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 5, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X A202111 CA Primary
Family Medicine Physician 207Q00000X U6089 TX
Gastroenterology Physician 207RG0100X A202111 CA

Addresses

Primary practice location

340 4TH Ave Ste 2
Chula Vista, CA 91910-3883

Mailing address

340 4TH Ave Ste 2
Chula Vista, CA 91910-3883

Other practice location 1

353 Church Ave Ste A
Chula Vista, CA 91910-3906
Phone (619) 585-8883

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, CA, AL3 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20240201001541 TX Practitioner - Family Practice 4688027030 Reassigns benefits to 4 organizations
I20250827004095 CA Practitioner - Family PracticePractitioner - Gastroenterology 4688027030 Reassigns benefits to 4 organizations
I20260316000688 AL Practitioner - Emergency Medicine 4688027030 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Family PracticeAlso: Gastroenterology
Education
Indiana University School of Medicine, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Southern California Health Providers Medical GRP IncGroup PAC ID 9739160961, 5 clinicians
Gregory J Wiener M D Professional CorporationGroup PAC ID 6901983519, 4 clinicians
On Call Specialists Medical Group of San Diego IncGroup PAC ID 7911395231, 145 clinicians

Practice addresses (Care Compare)

340 4TH Ave
Suite 2
Chula Vista, CA 91910-3883
Phone (619) 422-8338

353 Church Ave
Suite a
Chula Vista, CA 91910-3906
Phone (619) 585-8883

400 N Brown St
Hamilton, TX 76531-1518
Phone (254) 386-1600

4077 5TH Ave
San Diego, CA 92103-2105
Phone (619) 359-6600

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Upper gastrointestinal (GI) endoscopy for acid reflux17

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
U6089TXMDFamily Medicine Physician
A202111CAMDGastroenterology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Southern California Health Providers Medical GRP Inc Family Medicine CurrentSince Aug 1, 2025 Accepting new patients
Hamilton County Hospital District Family Medicine CurrentSince Apr 1, 2024 Accepting new patients
Hamilton County Hospital District CurrentSince Apr 1, 2024 Accepting new patients
Concord Medical Group of Texas PLLC CurrentSince Dec 30, 2023 Accepting new patients
Patrick Sweet MD PC Family Medicine CurrentSince Nov 1, 2025 Accepting new patients
Gregory J Wiener M D Professional Corporation CurrentSince Aug 1, 2025 Accepting new patients
Concord Medical Group PLLC Current Accepting new patients
Relias Emergency Medicine Specialists of Regional, LLC CurrentSince Mar 1, 2026 Accepting new patients

Locations

809 University Blvd E
Tuscaloosa, AL 35401
Phone (205) 333-4661

207 W Legion Rd
Brawley, CA 92227
Phone (760) 351-3333

751 W Legion Rd
Ste 303
Brawley, CA 92227
Phone (760) 351-4466

353 Church Ave
Chula Vista, CA 91910

353 Church Ave
#A
Chula Vista, CA 91910
Phone (619) 585-8883

340 Fourth Ave
Ste 2
Chula Vista, CA 91910
Phone (619) 265-1237

463 N Magnolia Ave
El Cajon, CA 92020
Phone (619) 359-8380

4077 5th Ave
San Diego, CA 92103
Phone (619) 260-7245

200 S Geneva St
Breckenridge, TX 76424
Phone (254) 559-2241

400 N Brown St
Bldg 1
Hamilton, TX 76531
Phone (254) 386-1600

400 N Brown St
Hamilton, TX 76531
Phone (254) 386-1600

310 W South St
Henrietta, TX 76365
Phone (806) 647-2191

215 Chisholm Trl
Jacksboro, TX 76458
Phone (940) 567-5528

1602 Avenue Q
Lubbock, TX 79401
Phone (469) 809-6712

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Organizations & group practices 9

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 4

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1648425600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762300800000",
    "number": "1902556202",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "340 4TH AVE STE 2",
            "city": "CHULA VISTA",
            "state": "CA",
            "postal_code": "919103883"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "340 4TH AVE STE 2",
            "city": "CHULA VISTA",
            "state": "CA",
            "postal_code": "919103883",
            "telephone_number": "619-422-8338"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "353 Church Ave Ste A",
            "address_purpose": "LOCATION",
            "city": "Chula Vista",
            "state": "CA",
            "postal_code": "919103906",
            "country_code": "US",
            "telephone_number": "619-585-8883",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "STILLSON",
        "first_name": "JOHN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-28",
        "last_updated": "2025-11-05",
        "certification_date": "2025-11-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A202111",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "TX",
            "license": "U6089",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CA",
            "license": "A202111",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chula Vista, CA

Sources for this page

Verify at the official NPI Registry.