Individual provider Active NPI

Katherine S De Guzman

  • Family Nurse Practitioner
  • Baltimore, MD
National Provider Identifier
1477893600
Registry record updated Jul 7, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
R253278 Issued in MD
Practice address
6225 Smith Ave Ste B300
Baltimore, MD 21209-3613
Phone
(410) 583-2653
NPI assigned
Feb 25, 2013
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 7, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Registered Nurse 163W00000X 774840 CA
Family Nurse Practitioner 363LF0000X 22228 CA
Family Nurse Practitioner 363LF0000X R253278 MD Primary

Addresses

Primary practice location

6225 Smith Ave Ste B300
Baltimore, MD 21209-3613

Mailing address

6201 Greenleigh Ave
Middle River, MD 21220-2004
Phone (818) 763-8836

Other practice location 1

6801 Coldwater Canyon Ave
North Hollywood, CA 91605-5162
Phone (818) 763-8836

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, DC2 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20221006000056 MD Practitioner - Nurse Practitioner 0840423513 Reassigns benefits to 1 organization
I20221006000103 DC Practitioner - Nurse Practitioner 0840423513 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

1000 E Eager St
E Baltimore Med Ctr
Baltimore, MD 21202-5533
Phone (410) 522-9800

14207 Park Ctr Dr
Suite 102
Laurel, MD 20707-5255
Phone (301) 604-5254

14955 Shady Grove Rd
Suite 100
Rockville, MD 20850-8728
Phone (301) 990-3190

410 Malcolm Dr C
Westminster, MD 21157-6160
Phone (410) 857-2300

6225 Smith Ave
Baltimore, MD 21209-3626
Phone (667) 208-8855

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.23 of 100Reported as group
Quality
80.47
Promoting interoperability
100
Improvement activities
40
Cost
76.96

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
774840CAMDRegistered Nurse
R253278MDMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Johns Hopkins Community Physicians, Inc CurrentSince Sep 1, 2022 Accepting new patients
Johns Hopkins Community Physicians CurrentSince Sep 1, 2022 Accepting new patients
Johns Hopkins Community Physicians, Inc CurrentSince Sep 1, 2022 Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients

Locations

6225 Smith Ave
Baltimore, MD 21209
Phone (401) 369-0000

1000 E Eager St
Baltimore, MD 21202
Phone (410) 522-9800

14207 Park Center Dr
Ste 102
Laurel, MD 20707
Phone (301) 604-5254

6201 Greenleigh Ave
Middle River, MD 21220
Phone (410) 933-2704

6225 Smith Ave
Ste B300
Mt Washington, MD 21209
Phone (667) 208-8855

Interoperability endpoints

  • Direct secure messaging: kdeguzman1020660@direct.hopkinsmedicine.org

Organizations & group practices 4

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 2

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": "1361750400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751846400000",
    "number": "1477893600",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVE",
            "city": "MIDDLE RIVER",
            "state": "MD",
            "postal_code": "212202004",
            "telephone_number": "818-763-8836"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6225 SMITH AVE STE B300",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212093613",
            "telephone_number": "410-583-2653"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6801 Coldwater Canyon Ave",
            "address_purpose": "LOCATION",
            "city": "North Hollywood",
            "state": "CA",
            "postal_code": "916055162",
            "country_code": "US",
            "telephone_number": "818-763-8836",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DE GUZMAN",
        "first_name": "KATHERINE",
        "middle_name": "S",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-02-25",
        "last_updated": "2025-07-07",
        "certification_date": "2025-07-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "CA",
            "license": "774840",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "22228",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MD",
            "license": "R253278",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Baltimore, MD

Sources for this page

Verify at the official NPI Registry.