Individual provider Active NPI

Amanda Lynn Jainchill, M.D.

  • Family Medicine Physician
  • National City, CA
National Provider Identifier
1720426901
Registry record updated Sep 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
A141541 Issued in CA
Practice address
2835 Highland Ave
National City, CA 91950-7404
Phone
(844) 200-2426
Fax
(619) 474-4008
NPI assigned
Jun 10, 2013
Last updated
Sep 1, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 1, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 0116025759 VA
Family Medicine Physician 207Q00000X A141541 CA Primary

Addresses

Primary practice location

2835 Highland Ave
National City, CA 91950-7404

Mailing address

637 3Rd Ave Ste E1
Chula Vista, CA 91910-5707
Phone (844) 200-2426

Other names 1

  • Amanda Lynn Tarnowicz Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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 1

Enrollment IDStateProvider typePAC IDDetails
I20160929000717 CA Practitioner - Family Practice 2264755255 Reassigns benefits to 5 organizations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A141541CAMDFamily Medicine Physician
0116025759VAMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
County of Monterey Behavioral Health CurrentSince Aug 3, 2016 Accepting new patients
County of Monterey CurrentSince Aug 3, 2016 Accepting new patients
Scripps Mercy Physicians Cardiology Medical Corporation CurrentSince Apr 25, 2023 Accepting new patients
Operation Samahan Inc CurrentSince Sep 21, 2025 Accepting new patients
On Call Specialists Medical Group of San Diego, Inc. CurrentSince Aug 3, 2024 Accepting new patients
Operation Samahan Inc PastSince Jul 22, 2025 Accepting new patients
Operation Samahan, Inc. Past Accepting new patients

Locations

435 H St
Ste CV112
Chula Vista, CA 91910

1428 Highland Ave
National City, CA 91950
Phone (619) 245-1707

2835 Highland Ave
National City, CA 91950
Phone (209) 683-5640

2835 Highland Ave
Ste A
National City, CA 91950
Phone (618) 474-5567

1441 Constitution Blvd
Salinas, CA 93906
Phone (831) 261-8090

10737 Camino Ruiz
Ste 235
San Diego, CA 92126
Phone (858) 578-4220

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

650 E Devon Ave
Ste 165
Itasca, IL 60143
Phone (630) 285-1040

Interoperability endpoints

  • Direct secure messaging: amanda.jainchill@opsam.eclinicaldirectplus.com

Organizations & group practices 8

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

NPI Registry JSON

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

{
    "created_epoch": "1370822400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788220800000",
    "number": "1720426901",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "637 3RD AVE STE E1",
            "city": "CHULA VISTA",
            "state": "CA",
            "postal_code": "919105707",
            "telephone_number": "844-200-2426",
            "fax_number": "619-356-2726"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2835 HIGHLAND AVE",
            "city": "NATIONAL CITY",
            "state": "CA",
            "postal_code": "919507404",
            "telephone_number": "844-200-2426",
            "fax_number": "619-474-4008"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JAINCHILL",
        "first_name": "AMANDA",
        "middle_name": "LYNN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-06-10",
        "last_updated": "2026-09-01",
        "certification_date": "2026-09-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "VA",
            "license": "0116025759",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A141541",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "AMANDA",
            "last_name": "TARNOWICZ",
            "middle_name": "LYNN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in National City, CA

Sources for this page

Verify at the official NPI Registry.