Mary E Baker, CNM

Primary specialty

MidwifeTaxonomy code 176B00000X

License

200739 Issued in MA

Practice address

330 Mount Auburn St
Cambridge, MA 02138-5502

Phone

(617) 499-5151

Fax

(617) 499-5179

NPI assigned

Sep 12, 2005

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Nurse Midwife

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: baker.mary.nwh@direct.partners.masshiway.net

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.

• Mass General Brigham Medical Group Suburban Massachusetts Inc

  • Family Medicine Physician
  • Newton, MA
  • NPI 1538191218
  Medicare reassignment NPD
• Newton Wellesley Hospital

  • General Acute Care Hospital
  • Newton, MA
  • NPI 1952845521
  NPD
• Mt Auburn Prof Services

  dba Sleep Disorders Center

  • Sleep Disorder Diagnostic Clinic/Center
  • Cambridge, MA
  • NPI 1326202797
  NPD (past)

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

{
    "created_epoch": "1126483200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1457346884",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 ARSENAL MARKET PL",
            "city": "WATERTOWN",
            "state": "MA",
            "postal_code": "024725018",
            "telephone_number": "617-673-1851",
            "fax_number": "617-499-5579"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "330 MOUNT AUBURN ST",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021385502",
            "telephone_number": "617-499-5151",
            "fax_number": "617-499-5179"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BAKER",
        "first_name": "MARY",
        "middle_name": "E",
        "credential": "CNM",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-09-12",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "176B00000X",
            "taxonomy_group": "",
            "desc": "Midwife",
            "state": "MA",
            "license": "200739",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0388840",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Jhony Baissary, MD
• Debra Merle Baker
• Douglas C Baker, LICSW
• Elizabeth Beeuwkes Baker, M.D.
• Lily Baker
• Armand Baklajian, PHARMD
• Gauthami Balagopal, MD
• Sheelan Balata
• Emily Moreen Balazs
• Dennis Balcom, MSW

• Midwife in Cambridge, MA
• Providers in Cambridge, MA by specialty
• Midwife 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.