Mary L Bakalos, M.D.

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

154232 Issued in MA

Practice address

200 Groton Rd
Nashoba Valley Medical Center
Ayer, MA 01432-1168

Phone

(978) 784-9270

NPI assigned

May 3, 2006

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

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

Specialty

Diagnostic Radiology

Education

Boston University School of Medicine, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

L and M Radiology IncGroup PAC ID 6305819228, 20 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Holy Family Hospital Hospital, Methuen, MA, CCN 220080
• Merrimack Health Lawrence Hospital Hospital, Lawrence, MA, CCN 220010
• Anna Jaques Hospital Hospital, Newburyport, MA, CCN 220029
• Dana-Farber Cancer Institute Hospital, Boston, MA, CCN 220162
• Boston Medical Center-Brighton Hospital, Brighton, MA, CCN 220036

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• L & M Radiology, Inc.

  • Diagnostic Radiology Physician
  • Lawrence, MA
  • NPI 1699721985
  Medicare reassignment Care Compare group NPD
• Steward Medical Group, Inc

  • Specialist
  • Brighton, MA
  • NPI 1356654495
  Medicare reassignment NPD
• Steward Medical Group, Inc

  • Internal Medicine Physician
  • Dartmouth, MA
  • NPI 1821349317
  Medicare reassignment NPD

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

• Anna Jaques Hospital

  • General Acute Care Hospital
  • Newburyport, MA
  • NPI 1992779482
  Care Compare affiliation
• Boston Medical Center - Brighton Corporation

  dba Boston Medical Center - Brighton

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1720814072
  Care Compare affiliation
• Dana-Farber Cancer Institute, Inc.

  dba Dana-Farber Cancer Institute

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1851333686
  Care Compare affiliation
• Lawrence General Hospital

  dba Merrimack Health Lawrence Hospital

  • General Acute Care Hospital
  • Lawrence, MA
  • NPI 1750381281
  Care Compare affiliation
• LG Newcorp Inc

  dba Merrimack Health Methuen Hospital

  • General Acute Care Hospital
  • Methuen, MA
  • NPI 1265267991
  Care Compare affiliation

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

{
    "created_epoch": "1146614400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1629036090",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9 ALLAN DR",
            "city": "MAYNARD",
            "state": "MA",
            "postal_code": "017541909",
            "telephone_number": "978-784-9270"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 GROTON RD",
            "address_2": "NASHOBA VALLEY MEDICAL CENTER",
            "city": "AYER",
            "state": "MA",
            "postal_code": "014321168",
            "telephone_number": "978-784-9270"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BAKALOS",
        "first_name": "MARY",
        "middle_name": "L",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-03",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MA",
            "license": "154232",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ayer Pharmacy Inc. (Ayer Family Pharmacy - Long Term Care)
• Ayer Shirley Regional School District
• Ayer Valley Operating LLC
• Ayer Valley Rehab and Nursing LLC
• Dawn Baird, PA-C
• Steven Charles Balser, M.D.
• Behavioral Milestones
• Marie G Bennett, FNP-BC
• Elisha S Bernstein, LICSW
• Desdalin Cornelia Black, M.S.ED., BCBA

• Diagnostic Radiology Physician in Ayer, MA
• Providers in Ayer, MA by specialty
• Diagnostic Radiology Physician in Massachusetts

• 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.

Verify at the official NPI Registry.