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DR. JOHN H. HART JR. MD
NPI 1104904945
Internal Medicine in Saint Helena, CA

Active since November 01, 2006PECOS EnrolledAccepts Medicare Assignment
96.44/100
CMS Quality Rating
10 WOODLAND RD, SAINT HELENA, CA 94574(707) 963-6399(707) 967-5915 Get Directions Write a Review

NPPES record last updated: May 20, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 20, 2025, Nov 9, 2016 (2 updates tracked since 2016).

About Dr. John H. Hart Jr. Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN H. HART JR. MD (NPI 1104904945) is an individual internal medicine provider in Saint Helena, California, licensed in California (G81027) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Meharry Medical College School Of Medicine (1993).

NPPES Registry Identity

NPI1104904945
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOHN H. HART JR.Credential: MD
Location Address10 WOODLAND RDSaint Helena, CA 94574-9554
Mailing AddressPo Box 7096Stockton, CA 95267-0096 · (209) 956-7725 · Fax (209) 956-7733
Phone(707) 963-6399
Fax(707) 967-5915
Sole ProprietorNo
Medical School CMSMeharry Medical College School Of MedicineGraduated 1993
Enumeration DateNovember 1, 2006
Last NPPES UpdateMay 20, 20252 updates tracked since enumeration
NPPES CertifiedMay 20, 2025
✔ NPI 1104904945 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in CA · G81027✔ Licensed in CA · G081027
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License G81027 (CA)
10 WOODLAND RD, Saint Helena, CA 94574
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1444 Bruce StYreka, CA 96097-3450 · Phone (303) 390-1940
Location 21800 Spring Ridge DrSusanville, CA 96130-6100 · Phone (303) 390-1940

Other Identifiers 1

Medicaid00G810270CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John H. Hart Jr. Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1850441486
PECOS Enrollment IDI20090602000629
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
289 services132 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
140 services130 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
80 services78 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
27 services26 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94574 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$145.99 typical visit price
range $65.08 – $192.16
Typical copayment $36.49 (range $16.27 – $48.04)
Most-billed visit code 99204
Established Patient
$113.15 typical visit price
range $21.86 – $157.83
Typical copayment $28.28 (range $5.46 – $39.45)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

96.44/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Improvement Activities40
Cost79.57

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
99%202 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DOUGLAS PHILIP TAPPER M.D.
Internal Medicine (Critical Care Medicine)
10 WOODLAND RD
SAINT HELENA, CA 94574
Napa County (707) 963-6399
DR. GEOFFREY WILLIAM HORN DO
Radiology (Diagnostic Radiology)
10 WOODLAND RD
SAINT HELENA, CA 94574
Napa County (707) 963-6430
KATHERINE LYNN SALLAS
Perfusionist
10 WOODLAND RD
SAINT HELENA, CA 94574
Napa County (707) 963-3611
DAN CLAY M.D.
Emergency Medicine
10 WOODLAND RD
SAINT HELENA, CA 94574
Napa County (707) 963-6311
NAZIR J. HABIB MD
Internal Medicine (Critical Care Medicine)
10 WOODLAND RD
SAINT HELENA, CA 94574
Napa County (707) 963-6399
SEANEEN WHALEY F.N.P
Nurse Practitioner (Family)
10 WOODLAND RD, ICU ROOM 500
SAINT HELENA, CA 94574
Napa County (707) 963-6445
MONA HUISMAN
Occupational Therapist
10 WOODLAND RD
SAINT HELENA, CA 94574
Napa County (707) 963-6596
ADVENTIST HEALTH CALIFORNIA MEDICAL GROUP, INC.
Preventive Medicine (Public Health & General Preventive Medicine)
10 WOODLAND RD
SAINT HELENA, CA 94574
Napa County (707) 963-2002

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Hart's NPI number?

The NPI number for John Hart is 1104904945. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Where is John Hart located?

John Hart practices at 10 Woodland Rd, Saint Helena, CA 94574. The listed phone number is (707) 963-6399.

What is John Hart's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is John Hart enrolled in Medicare?

Yes. John Hart is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for John Hart was last updated on May 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.