NORTHBAY HEALTHCARE GROUP
NPI 1780736736
Psychiatry & Neurology - Addiction Medicine in Fairfield, CA

Q: What is Northbay Healthcare Group's NPI number?

The NPI number for Northbay Healthcare Group is 1780736736. It was assigned to this organization in the NPPES registry on January 18, 2007. The provider is doing business as NorthBay Health Urgent Care.

Q: What is Northbay Healthcare Group's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Addiction Medicine, with taxonomy code 2084A0401X.

Q: What quality rating does Northbay Healthcare Group have?

CMS rates Northbay Medical Center 3 out of 5 stars overall on Care Compare, based on measures of safety, patient experience and outcomes. The full measure detail is in the Hospital Quality Ratings section above.

Active since January 18, 2007

3/5

Hospital Overall Rating

1860 PENNSYLVANIA AVE STE 230, FAIRFIELD, CA 94533(707) 646-4370 Get Directions Write a Review

NPPES record last updated: January 22, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 22, 2026, Nov 17, 2025, Nov 5, 2025 and 3 more (6 updates tracked since 2019).

On this page

About Northbay Healthcare Group NPPES

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

NORTHBAY HEALTHCARE GROUP (NPI 1780736736), doing business as Northbay Health Urgent Care, is a healthcare organization registered as an addiction medicine in Fairfield, California and active in the NPI registry since January 2007. The organization maintains 2 additional practice locations and lists Joseph Dangina, Cfo, as its authorized official.

NPPES Registry Identity

NPI1780736736

Entity TypeOrganization

Primary Taxonomy2084A0401X

Legal Business NameNORTHBAY HEALTHCARE GROUP

Location Address1860 PENNSYLVANIA AVE STE 230Fairfield, CA 94533-3550

Mailing Address4500 Business Center DrFairfield, CA 94534-6888 · (707) 646-3111

Phone(707) 646-4370

Organization SubpartYes

Authorized OfficialJoseph DanginaCfo · (707) 646-3111

Enumeration DateJanuary 18, 2007

Last NPPES UpdateJanuary 22, 20266 updates tracked since enumeration

NPPES CertifiedJanuary 22, 2026

✔ NPI 1780736736 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 6

★ Primary SpecialtyPsychiatry & Neurology · Addiction MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2084A0401X

Definition

A doctor of osteopathy board eligible/certified in the field of Psychiatry by the American Osteopathic Board of Neurology and Psychiatry is able to obtain a Certificate of Added Qualifications in the field of Addiction Medicine

Also ListedInternal Medicine · GastroenterologyTaxonomy 207RG0100X

Also ListedInternal Medicine · RheumatologyTaxonomy 207RR0500X

Also ListedInternal Medicine · Medical OncologyTaxonomy 207RX0202X

Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X

Also ListedRespiratory Therapist, Certified · Pulmonary RehabilitationTaxonomy 2278P1005X

1860 PENNSYLVANIA AVE STE 230, Fairfield, CA 94533

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Other Names 1

Doing Business AsNorthbay Health Urgent Care

Secondary Practice Locations 2

Location 14520 Business Center Drive, 180Fairfield, CA 94534 · Phone (707) 646-3555

Location 21860 Pennsylvania Ave Ste 230Fairfield, CA 94533-3550 · Phone (707) 646-4370

Other Identifiers 2

Other110000093CA · Dhs License

OtherGR0093200CA · Medi-cal Physician Group

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Northbay Healthcare Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

515

Medicare enrollment records show 515 clinicians reassign Medicare billing to Northbay Healthcare Group, which bills Medicare for the services they deliver. Of these, 27 practice at this address and 181 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 50

Nurse Practitioner70

Emergency Medicine56

Internal Medicine55

Diagnostic Radiology36

Obstetrics/Gynecology36

Family Practice27

Hospitalist23

Neurology18

42 other specialties194

Nearest to this location (20)

See all 515

Ameer Almullahassani, MD

Neurology

NPI 1245473131

1860 PENNSYLVANIA AVE SUITE 210
Fairfield, CA 94533

(707) 646-4380

✔ PECOS✔ Accepts MedicareSame address

Jeffrey Breneisen, MD

Cardiovascular Disease (Cardiology)

NPI 1629058615

1860 PENNSYLVANIA AVE SUITE 120
Fairfield, CA 94533

(707) 646-4400

✔ PECOS✔ Accepts MedicareSame address

Amanda Christian, APRN, CNM

Certified Nurse Midwife (CNM)

NPI 1972891273

1860 PENNSYLVANIA AVE STE 300
Fairfield, CA 94533

(707) 646-4100

✔ PECOS✔ Accepts MedicareSame address

Milind Dhond, M. D.

Cardiovascular Disease (Cardiology)

NPI 1972500676

1860 PENNSYLVANIA AVE SUITE 120
Fairfield, CA 94533

(707) 646-4400

✔ PECOS✔ Accepts MedicareSame address

Donald Doyle, MD

Sleep Medicine

NPI 1699766220

1860 PENNSYLVANIA AVE SUITE 200
Fairfield, CA 94533

(707) 646-4180

✔ PECOS✔ Accepts MedicareSame address

Teodor Duro, MD

Endocrinology

NPI 1780180315

1860 PENNSYLVANIA AVE STE 110
Fairfield, CA 94533

(707) 646-4114

✔ PECOS✔ Accepts MedicareSame address

William Fulton, D.O.

General Surgery

NPI 1497831564

1860 PENNSYLVANIA AVE SUITE 300B
Fairfield, CA 94533

(707) 646-4180

✔ PECOS✔ Accepts MedicareSame address

Majid Kianmajd, DO

General Surgery

NPI 1396008389

1860 PENNSYLVANIA AVE STE 200
Fairfield, CA 94533

(707) 646-4180

✔ PECOS✔ Accepts MedicareSame address

Kalie Li, D.O.

Obstetrics/Gynecology

NPI 1508158288

1860 PENNSYLVANIA AVE STE 300
Fairfield, CA 94533

(707) 646-4100

✔ PECOS✔ Accepts MedicareSame address

Andrew Lin, M.D.

Obstetrics/Gynecology

NPI 1689617565

1860 PENNSYLVANIA AVE SUITE 300
Fairfield, CA 94533

(707) 646-4100

✔ PECOS✔ Accepts MedicareSame address

Jonathan Lopez, MD

Hematology/Oncology

NPI 1881682714

1860 PENNSYLVANIA AVE SUITE 230
Fairfield, CA 94533

(707) 646-4000

✔ PECOS✔ Accepts MedicareSame address

Cyrus Mancherje, M.D.

Interventional Cardiology

NPI 1659398543

1860 PENNSYLVANIA AVE SUITE 120
Fairfield, CA 94533

(415) 609-8513

✔ PECOS✔ Accepts MedicareSame address

Mary Meier

Qualified Speech Language Pathologist

NPI 1932666849

1860 PENNSYLVANIA AVE STE 305
Fairfield, CA 94533

(707) 646-4333

✔ Accepts MedicareSame address

Rebecca Parker, AGACNP-BC

Nurse Practitioner

NPI 1609304963

1860 PENNSYLVANIA AVE
Fairfield, CA 94533

(707) 646-4459

✔ PECOS✔ Accepts MedicareSame address

Maricel Roblez, NP

Nurse Practitioner

NPI 1811294283

1860 PENNSYLVANIA AVE SUITE 230
Fairfield, CA 94533

(707) 646-4000

✔ PECOS✔ Accepts MedicareSame address

Sherry Taylor, M.D., PH.D

Neurosurgery

NPI 1942375688

1860 PENNSYLVANIA AVE SUITE 320
Fairfield, CA 94533

(707) 646-4370

✔ PECOS✔ Accepts MedicareSame address

Teresa Whitley, M.D.

Internal Medicine

NPI 1760496764

1860 PENNSYLVANIA AVE SUITE 300
Fairfield, CA 94533

(707) 646-4100

✔ PECOS✔ Accepts MedicareSame address

Edie Zusman, MD

Neurosurgery

NPI 1629178637

1860 PENNSYLVANIA AVE SUITE 320
Fairfield, CA 94533

(707) 646-4370

✔ PECOSSame address

Melissa Loja, MD

Vascular Surgery

NPI 1578826749

1860 PENNSYLVANIA AVE STE 120
Fairfield, CA 94533

(707) 646-4400

✔ PECOS✔ Accepts MedicareSame address

Herkanwal Khaira, MD

Urology

NPI 1073691564

1860 PENNSYLVANIA AVE STE 200 200
Fairfield, CA 94533

(707) 646-4180

✔ PECOS✔ Accepts MedicareSame address

See all 515 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Quality Ratings CMS Care Compare

Quality and patient-experience ratings for Northbay Medical Center (CMS certification number 050367), from CMS Care Compare.

Northbay Medical Center

Acute Care Hospitals · Fairfield, CA

3/5 CMS Overall Rating

OwnershipVoluntary non-profit - Private

CMS Certification Number050367

Location1200 B Gale Wilson BlvdFairfield, CA 94533 · Solano County · (707) 646-5000

Emergency services Birthing friendly Meaningful use of EHRs

Patient Experience

HCAHPS patient survey · Jan 2023 – Dec 2023

3/5 summary rating

Nurse communication

3/5

Doctor communication

3/5

Staff responsiveness

3/5

Communication about medicines

2/5

Discharge information

4/5

Care transition

2/5

Cleanliness

2/5

Quietness

2/5

Overall hospital rating

3/5

Recommend hospital

3/5

Star ratings summarize responses from patients surveyed after discharge, collected through the CMS HCAHPS program.

Complications & Deaths 19

Rate of complications for hip/knee replacement patients

3.1 No different than national

Death rate for heart attack patients

13.3% No different than national

Death rate for CABG surgery patients

5.2% No different than national

Death rate for COPD patients

8.3% No different than national

Death rate for heart failure patients

10.9% No different than national

Death rate for pneumonia patients

18.4% No different than national

Infections 5

Central Line Associated Bloodstream Infection (ICU + select Wards)

0 observed cases · 4.493 predicted · 6,373 patient days

0.000 Better than the national benchmark

Catheter Associated Urinary Tract Infections (ICU + select Wards)

4 observed cases · 3.404 predicted · 4,780 patient days

1.175 No different than national

SSI - Colon Surgery

1 observed case · 2.118 predicted · 71 patient days

0.472 No different than national

MRSA Bacteremia

2 observed cases · 2.119 predicted · 55,491 patient days

0.944 No different than national

Clostridium Difficile (C.Diff)

4 observed cases · 28.616 predicted · 51,357 patient days

0.140 Better than the national benchmark

Unplanned Hospital Visits 14

Hospital return days for heart attack patients

197 days per 100 discharges

Hospital return days for heart failure patients

504 days per 100 discharges

Hospital return days for pneumonia patients

505 days per 100 discharges

Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)

151 No different than national

Rate of inpatient admissions for patients receiving outpatient chemotherapy

169 No different than national

Rate of emergency department (ED) visits for patients receiving outpatient chemotherapy

169 No different than national

Timely & Effective Care 16

Emergency department volume

Very high

Percentage of healthcare personnel who are up to date with COVID-19 vaccinations

88.2%

Hospital Harm - Severe Hypoglycemia

Hospital Harm - Severe Hyperglycemia

Healthcare workers given influenza vaccination

61%

Average (median) time patients spent in the emergency department before leaving from the visit A lower number of minutes is better

198 minutes

Maternal Health 2

Elective Delivery

20%

Maternal Morbidity Structural Measure

Yes

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 Northbay Healthcare Group's NPI number?

The NPI number for Northbay Healthcare Group is 1780736736. It was assigned to this organization in the NPPES registry on January 18, 2007. The provider is doing business as NorthBay Health Urgent Care.

Where is Northbay Healthcare Group located?

Northbay Healthcare Group is located at 1860 Pennsylvania Ave Ste 230, Fairfield, CA 94533. The listed phone number is (707) 646-4370.

What is Northbay Healthcare Group's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Addiction Medicine, with taxonomy code 2084A0401X.

Is Northbay Healthcare Group enrolled in Medicare?

Yes. Northbay Healthcare Group is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Northbay Healthcare Group?

According to the CMS Revalidation Reassignment List (October 2026 release), 515 clinicians in 50 Medicare specialties reassign their Medicare billing to Northbay Healthcare Group. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (70), Emergency Medicine (56) and Internal Medicine (55). Of these, 27 practice at this address and 181 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Is Northbay Healthcare Group a Medicare-certified hospital?

Yes. Northbay Medical Center is a Medicare-certified hospital (Acute Care Hospitals). The hospital provides emergency services.

What quality rating does Northbay Healthcare Group have?

CMS rates Northbay Medical Center 3 out of 5 stars overall on Care Compare, based on measures of safety, patient experience and outcomes. The full measure detail is in the Hospital Quality Ratings section above.

When was this NPI record last updated?

The NPPES record for Northbay Healthcare Group was last updated on January 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.