James Mazjanis, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

R257658 Issued in MD

Practice address

13013 Ebenezer Chapel Dr
Clarksburg, MD 20871-4323

Phone

(401) 215-4245

NPI assigned

Sep 13, 2022

Last updated

May 27, 2025By the provider in NPPES

Sex

Male

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 MD, DC, VA3 enrollments

Enrollment records 3

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 2022

Medicare assignment

May accept Medicare assignment

Group practices

First Colonies Anesthesia Associates, LLCGroup PAC ID 8426039744, 339 clinicians

Valley Health Anesthesia Services, LLCGroup PAC ID 3678002565, 124 clinicians

Johns Hopkins UniversityGroup PAC ID 8921903147, 2,886 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Holy Cross Germantown Hospital Hospital, Germantown, MD, CCN 210065
• Johns Hopkins Hospital, the Hospital, Baltimore, MD, CCN 210009
• Winchester Medical Center Hospital, Winchester, VA, CCN 490005
• Johns Hopkins Bayview Medical Center Hospital, Baltimore, MD, CCN 210029
• Holy Cross Hospital Hospital, Silver Spring, MD, CCN 210004

Merit-based Incentive Payment System (MIPS)

Final score

63.85 of 100Reported as group

Quality

57.47

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jmazjanis1381443@direct.hopkinsmedicine.org

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.

• First Colonies Anesthesia Associates, LLC

  • Anesthesiology Physician
  • Columbia, MD
  • NPI 1740218767

  DC, Nurse Anesthetist, Certified Registered

  Medicare reassignment Care Compare group NPD
• Johns Hopkins University

  dba Jhu - Anesthesia Pain MGMT

  • Pain Medicine (Anesthesiology) Physician
  • Baltimore, MD
  • NPI 1922008549
  Medicare reassignment Care Compare group NPD
• Valley Health Anesthesia Services, LLC

  • Anesthesiology Physician
  • Winchester, VA
  • NPI 1174343610
  Medicare reassignment Care Compare group NPD
• Anesthesia Company, LLC

  • Anesthesiology Physician
  • Annapolis, MD
  • NPI 1871548156

  DC, Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• Inova Cares - Community

  • Anesthesiology Physician
  • Fairfax, VA
  • NPI 1861131906

  DC

  Medicare reassignment NPD
• Johns Hopkins University

  dba JHU - 4692 Millennium Drive - Physician

  • Ophthalmology Physician
  • Belcamp, MD
  • NPI 1376342774
  NPD
• Johns Hopkins University

  dba Jhu - Emergency Medicine

  • Emergency Medicine Physician
  • Baltimore, MD
  • NPI 1386631810
  NPD

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

• Holy Cross Health, Inc

  dba Holy Cross Hospital

  • General Acute Care Hospital
  • Silver Spring, MD
  • NPI 1669417838
  Care Compare affiliation
• Holy Cross Health, Inc.

  dba Holy Cross Germantown Hospital

  • General Acute Care Hospital
  • Germantown, MD
  • NPI 1245655638
  Care Compare affiliation
• Holy Cross Health, Inc.

  dba Holy Cross Health Lab Outreach

  • Clinical Medical Laboratory
  • Silver Spring, MD
  • NPI 1831574284

  Hospital

  Care Compare affiliation
• Johns Hopkins Bayview Medical Center Inc

  • General Acute Care Hospital
  • Baltimore, MD
  • NPI 1790700904
  Care Compare affiliation
• Johns Hopkins Bayview Medical Center, Inc.

  dba Johns Hopkins Bayview Care Center

  • Chronic Disease Hospital
  • Baltimore, MD
  • NPI 1336251412
  Care Compare affiliation
• The Johns Hopkins Hospital

  • General Acute Care Hospital
  • Baltimore, MD
  • NPI 1578597993
  Care Compare affiliation
• Winchester Medical Center

  • General Acute Care Hospital
  • Winchester, VA
  • NPI 1619928017
  Care Compare affiliation
• Winchester Medical Center

  dba Valley Health Laboratories

  • Clinical Medical Laboratory
  • Winchester, VA
  • NPI 1790024909

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1663027200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748304000000",
    "number": "1568184950",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13013 EBENEZER CHAPEL DR",
            "city": "CLARKSBURG",
            "state": "MD",
            "postal_code": "208714323",
            "telephone_number": "401-215-4245"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "13013 EBENEZER CHAPEL DR",
            "city": "CLARKSBURG",
            "state": "MD",
            "postal_code": "208714323",
            "telephone_number": "401-215-4245"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1800 Orleans St",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212870010",
            "country_code": "US",
            "telephone_number": "410-955-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAZJANIS",
        "first_name": "JAMES",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-09-13",
        "last_updated": "2025-05-27",
        "certification_date": "2025-05-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MD",
            "license": "R257658",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Radhika Jayaraj Manikumar, M.D.
• Marshall Clinical Social Work
• Maxine Marshall, LCSW-C
• Maryland CVS Pharmacy LLC (CVS Pharmacy # 11054)
• Shelah Maul
• Valentine E Mbogne
• Maureen Laura McAllister, BS, E-RYT 500, YACEP
• Julia McCafferty
• Heather Murray McKenna, MA, LCPC
• Medidoz Pharmacy LLC (Thrive Pharmacy)

• Certified Registered Nurse Anesthetist in Clarksburg, MD
• Providers in Clarksburg, 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 May 27, 2025; 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.