NPIMap

Individual provider Active NPI

John H. Hart Jr., MD

  • Internal Medicine Physician
  • Saint Helena, CA
National Provider Identifier
1104904945
Registry record updated May 20, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
G81027 Issued in CA
Practice address
10 Woodland Rd
Saint Helena, CA 94574-9554
Phone
(707) 963-6399
Fax
(707) 967-5915
NPI assigned
Nov 1, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 20, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X G81027 CA
Internal Medicine Physician 207R00000X G081027 CA
Internal Medicine Physician 207R00000X G81027 CA Primary

Addresses

Primary practice location

10 Woodland Rd
Saint Helena, CA 94574-9554

Mailing address

PO Box 7096
Stockton, CA 95267-0096
Phone (209) 956-7725

Other practice location 1

444 Bruce St
Yreka, CA 96097-3450
Phone (303) 390-1940

Other practice location 2

1800 Spring Ridge Dr
Susanville, CA 96130-6100
Phone (303) 390-1940

Other identifiers 1

IdentifierTypeStateIssuer
00G810270MedicaidCA

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20090602000629 CA Practitioner - Internal Medicine 1850441486 Reassigns benefits to 2 organizations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
G081027CAMDInternal Medicine Physician
G81027CAMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
SV Hospitalist Medical Group Inc Hospitalist CurrentSince Oct 26, 2019 Accepting new patients
Galen Inpatient Physicians, PC Hospitalist Current Accepting new patients
Galen Inpatient Physicians, PC Hospitalist CurrentSince Jun 1, 2024 Accepting new patients
Brennan Friedman and Kapjian a Professional Corporation Internal Medicine Past Accepting new patients
Providence Medical Foundation Past Accepting new patients
Quantum Healthcare Medical Associates Inc. Internal Medicine Past Accepting new patients

Locations

15630 18th Ave
Clearlake, CA 95422
Phone (707) 995-5820

115 Mall Dr
Hanford, CA 93230
Phone (559) 537-0550

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423

10 Woodland Rd
Saint Helena, CA 94574
Phone (707) 963-2002

347 Andrieux St
Sonoma, CA 95476
Phone (707) 935-5000

869 N Cherry St
Tulare, CA 93274
Phone (559) 326-2800

1 Marcela Dr
Willits, CA 95490
Phone (707) 456-3001

Organizations & group practices 16

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.

View all 16

Hospital & facility affiliations 5

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

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Meharry Medical College School of Medicine, 1993
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Galen Inpatient Physicians PC 1,045 clinicians
SV Hospitalist Medical Group Inc 7 clinicians

Practice addresses (Care Compare)

1 Marcela Dr
Willits, CA 95490-5769
Phone (707) 459-6801

347 Andrieux St
Sonoma, CA 95476-6811
Phone (707) 935-5000

Hospital & facility affiliations

  • Sonoma Valley Hospital Hospital, Sonoma, CA, CCN 050090
  • Adventist Health Howard Memorial Hospital, Willits, CA, CCN 051310
  • Providence Santa Rosa Memorial Hospital Hospital, Santa Rosa, CA, CCN 050174
  • Providence Queen of the Valley Medical Center Hospital, Napa, CA, CCN 050009

Merit-based Incentive Payment System (MIPS)

Final score
82.4 of 100Reported as group
Quality
65.6
Improvement activities
40
Cost
71.06

Merit-based Incentive Payment System (MIPS)

Final score
98.43 of 100Reported as group
Improvement activities
40
Cost
79.39

Merit-based Incentive Payment System (MIPS)

Final score
89.41 of 100Reported as group
Quality
86.32
Promoting interoperability
95
Improvement activities
40
Cost
66.55

NPI Registry JSON

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

{
    "created_epoch": "1162339200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1747699200000",
    "number": "1104904945",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7096",
            "city": "STOCKTON",
            "state": "CA",
            "postal_code": "952670096",
            "telephone_number": "209-956-7725",
            "fax_number": "209-956-7733"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10 WOODLAND RD",
            "city": "SAINT HELENA",
            "state": "CA",
            "postal_code": "945749554",
            "telephone_number": "707-963-6399",
            "fax_number": "707-967-5915"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "444 Bruce St",
            "address_purpose": "LOCATION",
            "city": "Yreka",
            "state": "CA",
            "postal_code": "960973450",
            "country_code": "US",
            "telephone_number": "303-390-1940",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1800 Spring Ridge Dr",
            "address_purpose": "LOCATION",
            "city": "Susanville",
            "state": "CA",
            "postal_code": "961306100",
            "country_code": "US",
            "telephone_number": "303-390-1940",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HART",
        "first_name": "JOHN",
        "middle_name": "H.",
        "name_prefix": "Dr.",
        "name_suffix": "Jr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-01",
        "last_updated": "2025-05-20",
        "certification_date": "2025-05-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "G81027",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G081027",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G81027",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G810270",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Saint Helena, CA

Sources for this page

Verify at the official NPI Registry.