Active NPI
William J Focazio, MD
- Gastroenterology Physician
- Clifton, NJ
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- MA42726
- Practice address
- 999 Clifton Ave
Clifton, NJ 07013 - Phone
- (973) 777-7879
- Fax
- (973) 777-6738
- NPI assigned
- Nov 8, 2005
- Last updated
- Jul 13, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | MA42726 | NJ | Primary |
Addresses
Primary practice location
999 Clifton Ave
Clifton, NJ 07013
Mailing address
999 Clifton Ave
Clifton, NJ 07013
Phone (973) 777-7879
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NJ
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Gastroenterology
- Education
- Other, 1981
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
382 W Passaic Ave
Bloomfield, NJ 07003-5555
Phone (973) 777-7879
60 Evergreen PL
Suite 400
East Orange, NJ 07018-2120
Phone (973) 395-1550
Hospital & facility affiliations
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 42 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 21 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MA42726 | NJ | MD | Gastroenterology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| The Radiology Group of New Jersey, LLC | Current | Accepting new patients | |
| The Heart Center of the Oranges | Current | Accepting new patients | |
| Madison Medical and Sports Rehabilitation L.L.C | Current | Accepting new patients | |
| Monmouth Digestive Health LLC | Gastroenterology | Past | Accepting new patients |
| Madison Medical and Sports Rehabilitation L.L.C | Past | Accepting new patients |
Locations
1100 Clifton Ave
Clifton, NJ 07013
Phone (973) 777-7879
1100 Clifton Ave
Ste 5
Clifton, NJ 07013
Phone (973) 777-7879
60 Evergreen Pl
Ste 400
East Orange, NJ 07018
145 Wyckoff Rd
Ste 201
Eatontown, NJ 07724
Phone (732) 597-7333
57 US Highway 46
Ste 212
Hackettstown, NJ 07840
651 Willow Grove St
Hackettstown, NJ 07840
Phone (908) 441-1161
345 Main St
Madison, NJ 07940
Phone (973) 377-6700
175 High St
Newton, NJ 07860
Phone (973) 383-2121
60 Vose Ave
South Orange, NJ 07079
Phone (973) 763-5200
92 Old Northfield Rd
West Orange, NJ 07052
Phone (973) 736-0885
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.
-
- Cardiovascular Disease Physician
- East Orange, NJ
- NPI 1477532588
-
- Gastroenterology Physician
- Clifton, NJ
- NPI 1508053125
-
- Sports Physician Chiropractor
- Madison, NJ
- NPI 1992730253
-
dba The Medical Group of New Jersey
- Multi-Specialty Clinic/Center
- Hackettstown, NJ
- NPI 1174010540
-
- Ambulatory Surgical Clinic/Center
- Clifton, NJ
- NPI 1740261882
-
- Gastroenterology Physician
- Clifton, NJ
- NPI 1396761979
-
- Rehabilitation Clinic/Center
- Madison, NJ
- NPI 1952240822
-
- Gastroenterology Physician
- Eatontown, NJ
- NPI 1831721232
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba CareWell Health Medical Center
- General Acute Care Hospital
- East Orange, NJ
- NPI 1013386143
-
- General Acute Care Hospital
- Paterson, NJ
- NPI 1669462420
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1131408000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1205817277",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "999 CLIFTON AVE",
"city": "CLIFTON",
"state": "NJ",
"postal_code": "07013",
"telephone_number": "973-777-7879",
"fax_number": "973-777-6738"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "999 CLIFTON AVE",
"city": "CLIFTON",
"state": "NJ",
"postal_code": "07013",
"telephone_number": "973-777-7879",
"fax_number": "973-777-6738"
}
],
"practiceLocations": [],
"basic": {
"last_name": "FOCAZIO",
"first_name": "WILLIAM",
"middle_name": "J",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-11-08",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "NJ",
"license": "MA42726",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Clifton, NJ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.