Individual provider Active NPI

Jonathan Mazer, M.D.

  • Anesthesiology Physician
  • Boston, MA
National Provider Identifier
1902288194
Registry record updated May 22, 2019
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
25MA10401500 Issued in NJ
Practice address
75 Francis St
Boston, MA 02115-6110
Phone
(917) 886-4222
NPI assigned
Jun 24, 2015
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 22, 2019

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X 263741 MA
Anesthesiology Physician 207L00000X 25MA10401500 NJ Primary

Addresses

Primary practice location

75 Francis St
Boston, MA 02115-6110

Mailing address

BWH
75 Francis Street
Boston, MA 02115
Phone (617) 732-5500

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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190612000286 NJ Practitioner - Anesthesiology 6709192669 Reassigns benefits to 9 organizations

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Other, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Rwjbh Observation Associates LLCGroup PAC ID 5193137503, 995 clinicians
Centurion Anesthesia Surgical Centers LLCGroup PAC ID 9537551254, 51 clinicians
Bergen Anesthesia Group, P.C.Group PAC ID 6608861794, 61 clinicians
Bay AnesthesiaGroup PAC ID 0446639306, 75 clinicians

Practice addresses (Care Compare)

1 Clara Maass Dr
Belleville, NJ 07109-3550
Phone (973) 450-2000

190 Midland Ave
Saddle Brook, NJ 07663-6408
Phone (718) 540-8600

223 N Van Dien Ave
Ridgewood, NJ 07450-2726
Phone (201) 847-9403

561 Cranbury Rd
East Brunswick, NJ 08816-5400
Phone (201) 620-3010

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
60.05 of 100Reported as group
Quality
46.59
Improvement activities
40
Cost
64.74

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
263741MAMDStudent in an Organized Health Care Education/Training Program

Practice roles

OrganizationSpecialtyStatusNew patients
Omnj Division Three LLC Anesthesiology CurrentSince Jan 1, 2025 Accepting new patients
Bergen Anesthesia Group, P.C. CurrentSince Jul 1, 2019 Accepting new patients
Rwjbh Emergency Medicine Associates, LLC Anesthesiology CurrentSince Jan 9, 2025 Accepting new patients
Centurion Anesthesia Surgical Centers LLC Anesthesiology CurrentSince Apr 19, 2025 Accepting new patients
Bay Anesthesia LLC Anesthesiology CurrentSince Dec 16, 2024 Accepting new patients
Olena Medical New Jersey LLC Anesthesiology CurrentSince Jan 1, 2025 Accepting new patients
Integrated Medical Care LLC Anesthesiology CurrentSince May 29, 2025 Accepting new patients
Rwjbh Observation Associates LLC Anesthesiology CurrentSince Jan 9, 2025 Accepting new patients
Valley Physician Services PC CurrentSince Mar 10, 2020 Accepting new patients

Locations

1 Clara Maass Dr
Belleville, NJ 07109
Phone (973) 450-2008

1255 Broad St
Ste 200
Bloomfield, NJ 07003
Phone (646) 740-8302

561 Cranbury Rd
East Brunswick, NJ 08816
Phone (201) 620-3010

225 Williamson St
Elizabeth, NJ 07202
Phone (908) 994-5204

321 Essex St
Hackensack, NJ 07601
Phone (201) 692-9800

600 River Ave
Lakewood, NJ 08701
Phone (732) 363-1900

360 Route 70
Lakewood, NJ 08701
Phone (732) 367-3050

37 W Century Rd
Ste 101
Paramus, NJ 07652
Phone (201) 634-9000

223 N Van Dien Ave
Ridgewood, NJ 07450
Phone (201) 447-8417

190 Midland Ave
Saddle Brook, NJ 07663
Phone (201) 549-9998

110 Rehill Ave
Somerville, NJ 08876
Phone (908) 429-5833

1700 Whitehorse Hamilton Square Rd
Ste A1
Trenton, NJ 08690
Phone (215) 781-2020

1 Hamilton Health Pl
Trenton, NJ 08690
Phone (609) 584-6763

Organizations & group practices 9

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1435104000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1558483200000",
    "number": "1902288194",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "BWH",
            "address_2": "75 FRANCIS STREET",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02115",
            "telephone_number": "617-732-5500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "75 FRANCIS ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021156110",
            "telephone_number": "917-886-4222"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAZER",
        "first_name": "JONATHAN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-06-24",
        "last_updated": "2019-05-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "MA",
            "license": "263741",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NJ",
            "license": "25MA10401500",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.