Individual provider Active NPI

Stephen Grant Wahlig, MD

  • Diagnostic Radiology Physician
  • Burlington, MA
National Provider Identifier
1073170528
Registry record updated Jun 18, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
1021841 Issued in MA
Practice address
41 Mall Rd
Burlington, MA 01805-2204
Phone
(781) 744-8000
NPI assigned
May 21, 2019
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 18, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X R11480 IA
Diagnostic Radiology Physician 2085R0202X A181018 CA
Diagnostic Radiology Physician 2085R0202X 1021841 MA Primary

Addresses

Primary practice location

41 Mall Rd
Burlington, MA 01805-2204

Mailing address

PO Box 24520
New York, NY 10087-3720

Other practice location 1

505 Parnassus Ave
San Francisco, CA 94143-2204
Phone (415) 353-9056

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, MA2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20240709001599 CA Practitioner - Diagnostic Radiology 7517293012 Reassigns benefits to 3 organizations
I20250515000342 MA Practitioner - Diagnostic Radiology 7517293012 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Lahey Clinic IncGroup PAC ID 2264336528, shared by 3 NPIs, 1,381 clinicians

Practice addresses (Care Compare)

1 Essex Ctr Dr
Peabody, MA 01960-2901
Phone (978) 538-4000

16 Hayden Ave
Lexington, MA 02421-7929
Phone (781) 372-7100

29 Mall Rd
Burlington, MA 01805-0001

41 Mall Rd
Burlington, MA 01805-0001

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.01 of 100Reported as group
Quality
86.78
Improvement activities
40
Cost
70.46

Merit-based Incentive Payment System (MIPS)

Final score
84.89 of 100Reported as group
Quality
81.13
Improvement activities
40
Cost
71.5

Merit-based Incentive Payment System (MIPS)

Final score
97.28 of 100Reported as group
Quality
89.92
Promoting interoperability
100
Improvement activities
40
Cost
78.23

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
1021841MAMDClinical Social Worker
R11480IAMDInternal Medicine Physician
A181018CAMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of California San Francisco Internal Medicine CurrentSince Jun 24, 2024 Accepting new patients
University of California San Francisco Current Accepting new patients
University of California SFGH Medical Group Diagnostic Radiology CurrentSince Jun 18, 2024 Accepting new patients
University of California SFGH Medical Group CurrentSince Jun 18, 2024 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jun 24, 2024 Accepting new patients
UCSF Medical Group Business Services Internal Medicine CurrentSince Jun 24, 2024 Accepting new patients
Lahey Clinic, Inc. Internal Medicine CurrentSince May 1, 2025 Accepting new patients
Lahey Clinic, Inc Internal Medicine CurrentSince May 1, 2025 Accepting new patients
University of California San Francisco CurrentSince Jun 24, 2024 Accepting new patients

Locations

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

1001 Potrero Ave
Bldg 5
San Francisco, CA 94110
Phone (628) 206-5753

2001 The Embarcadero
Ste 1500
San Francisco, CA 94143
Phone (415) 353-1606

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

1001 Potrero Ave
San Francisco, CA 94110
Phone (415) 206-2305

41 Mall Rd
Burlington, MA 01805
Phone (781) 744-8400

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 6

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": "1558396800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750204800000",
    "number": "1073170528",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 24520",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100873720"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "41 MALL RD",
            "city": "BURLINGTON",
            "state": "MA",
            "postal_code": "018052204",
            "telephone_number": "781-744-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "505 Parnassus Ave",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941432204",
            "country_code": "US",
            "telephone_number": "415-353-9056",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WAHLIG",
        "first_name": "STEPHEN",
        "middle_name": "GRANT",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-05-21",
        "last_updated": "2025-06-18",
        "certification_date": "2025-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IA",
            "license": "R11480",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A181018",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MA",
            "license": "1021841",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Burlington, MA

Sources for this page

Verify at the official NPI Registry.