Mary Elizabeth Hammett, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

AP125979 Issued in TX

Practice address

5 Garrett Ave
La Plata, MD 20646-5960

Phone

(301) 609-4000

NPI assigned

Oct 14, 2008

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in MD, TX2 enrollments

Enrollment records 2

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northstar Anesthesia of Maryland LLCGroup PAC ID 4284085796, 28 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of MD Charles Regional Medical Center Hospital, La Plata, MD, CCN 210035

Merit-based Incentive Payment System (MIPS)

Final score

87.23 of 100Reported as group

Quality

81.01

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mhammett1169629@direct.umm.edu

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.

• Northstar Anesthesia of Maryland LLC

  • Anesthesiology Physician
  • La Plata, MD
  • NPI 1528747490
  Medicare reassignment Care Compare group NPD
• Northstar Anesthesia II PA

  • Anesthesiology Physician
  • Burleson, TX
  • NPI 1477066405

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Northstar Anesthesia III PA

  • Anesthesiology Physician
  • Corpus Christi, TX
  • NPI 1356968952

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Newbridge Surgery Center at Prince Frederick, LLC

  • Ambulatory Surgical Clinic/Center
  • Prince Frederick, MD
  • NPI 1285944504
  NPD (past)

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

• Civista Medical Center Inc

  • Rural Acute Care Hospital
  • La Plata, MD
  • NPI 1992701825
  Care Compare affiliation
• Civista Medical Center, Inc.

  • Physical Therapist
  • La Plata, MD
  • NPI 1689071219

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1223942400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770854400000",
    "number": "1376795021",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4455 S PADRE ISLAND DR STE 11",
            "city": "CORPUS CHRISTI",
            "state": "TX",
            "postal_code": "784115163",
            "telephone_number": "361-883-6211",
            "fax_number": "361-882-4891"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5 GARRETT AVE",
            "city": "LA PLATA",
            "state": "MD",
            "postal_code": "206465960",
            "telephone_number": "301-609-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6130 Parkway Dr",
            "address_purpose": "LOCATION",
            "city": "Corpus Christi",
            "state": "TX",
            "postal_code": "784142455",
            "country_code": "US",
            "telephone_number": "361-853-2200",
            "fax_number": "361-882-4891",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAMMETT",
        "first_name": "MARY",
        "middle_name": "ELIZABETH",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-10-14",
        "last_updated": "2026-02-12",
        "certification_date": "2026-02-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "WV",
            "license": "60145",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "TX",
            "license": "AP125979",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gopal Guruswamy, M.D.
• Dalisa Eboni Gutter, WHNP
• Sarah Ruth Guy, OTR/L
• Alexander Demoz Hailemelekot, PHYSICAL THERAPIST
• Maria Theresa Hamilton, LCSW-C
• Jonathan Edward Hangey, PHARMD, RPH
• Happy Trails ABA LLC
• Harcart Health Holdings LLC
• Anthony Fitzgerald Harewood, M.D.
• James I. Harring, M.D.

• Certified Registered Nurse Anesthetist in La Plata, MD
• Providers in La Plata, MD by specialty
• Certified Registered Nurse Anesthetist in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 12, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.