NPIMap

Individual provider Active NPI

Evan J. Zahner, MD

  • Orthopaedic Surgery Physician
  • Stoneham, MA
National Provider Identifier
1154378479
Registry record updated Jul 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Surgery PhysicianTaxonomy code 207X00000X
License
152993 Issued in MA
Practice address
92 Montvale Ave
Stoneham, MA 02180-3647
Phone
(781) 279-7040
NPI assigned
May 30, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 6, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Orthopaedic Surgery Physician 207X00000X 152993 MA Primary

Addresses

Primary practice location

92 Montvale Ave
Stoneham, MA 02180-3647

Mailing address

92 Montvale Ave
Ste 1400
Stoneham, MA 02180-3629
Phone (781) 279-7040

Other practice location 1

405 Pearl St
Malden, MA 02148-6644
Phone (781) 665-9500

Other practice location 2

44 Bearfoot Rd Ste 3125
Northborough, MA 01532-1559
Phone (781) 279-7040

Other practice location 3

362 Belmont St
Brockton, MA 02301-4950
Phone (781) 279-7040

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
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
I20051207000612 MA Practitioner - Orthopedic Surgery 7012938921 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Orthopedic Surgery
Education
Columbia University College of Physicians and Surgeons, 1992
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Orthopedic Surgery, IncGroup PAC ID 0244207645, 25 clinicians

Practice addresses (Care Compare)

92 Montvale Ave
Suite 1400
Stoneham, MA 02180-3629
Phone (781) 279-7040

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Hip replacement41
Knee replacement25
Lower limb (leg) arthroscopy (minimally invasive joint repair)1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
152993MAMDOrthopaedic Surgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Orthopedic Surgery, Inc CurrentSince Jan 1, 2015 Accepting new patients
Caritas St. Elizabeth's Medical Center Past Accepting new patients
Sheehan & Zahner Orthopedic Associates PC Orthopaedic Surgery PastSince Feb 4, 2003 Accepting new patients
Steward St. Elizabeth's Medical Center of Boston, Inc. Past Accepting new patients
North Suburban Orthopedic Associates, Inc. Orthopaedic Surgery Past Accepting new patients

Locations

405 Pearl St
#1
Malden, MA 02148
Phone (781) 665-9500

405 Pearl St
Malden, MA 02148
Phone (781) 321-8785

92 Montvale Ave
Ste 1400
Stoneham, MA 02180
Phone (781) 279-7040

92 Montvale Ave
Ste 3675
Stoneham, MA 02180
Phone (781) 438-1800

92 Montvale Ave
Stoneham, MA 02180
Phone (781) 279-7040

Interoperability endpoints

  • Direct secure messaging: ezahner29027@tuftsmedicine.direct-ci.com

Organizations & group practices 5

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 9

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": "1148947200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783296000000",
    "number": "1154378479",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "92 MONTVALE AVE",
            "address_2": "STE 1400",
            "city": "STONEHAM",
            "state": "MA",
            "postal_code": "021803629",
            "telephone_number": "781-279-7040",
            "fax_number": "781-279-8430"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "92 MONTVALE AVE",
            "city": "STONEHAM",
            "state": "MA",
            "postal_code": "021803647",
            "telephone_number": "781-279-7040"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "405 Pearl St",
            "address_purpose": "LOCATION",
            "city": "Malden",
            "state": "MA",
            "postal_code": "021486644",
            "country_code": "US",
            "telephone_number": "781-665-9500",
            "fax_number": "781-665-3856",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "44 Bearfoot Rd Ste 3125",
            "address_purpose": "LOCATION",
            "city": "Northborough",
            "state": "MA",
            "postal_code": "015321559",
            "country_code": "US",
            "telephone_number": "781-279-7040",
            "fax_number": "781-279-8430",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "362 Belmont St",
            "address_purpose": "LOCATION",
            "city": "Brockton",
            "state": "MA",
            "postal_code": "023014950",
            "country_code": "US",
            "telephone_number": "781-279-7040",
            "fax_number": "781-279-8430",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZAHNER",
        "first_name": "EVAN",
        "middle_name": "J.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-30",
        "last_updated": "2026-07-06",
        "certification_date": "2026-07-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "MA",
            "license": "152993",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stoneham, MA

Sources for this page

Verify at the official NPI Registry.