Individual provider Active NPI

Peter J Underwood, MSN FNP- BC

  • Family Nurse Practitioner
  • Pasadena, CA
National Provider Identifier
1548069297
Registry record updated Mar 13, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
NP95032901 Issued in CA
Practice address
556 S Fair Oaks Ave # 101-249
Pasadena, CA 91105-2656
Phone
(626) 482-0290
NPI assigned
Mar 13, 2025
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 13, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X NP95032901 CA Primary

Addresses

Primary practice location

556 S Fair Oaks Ave # 101-249
Pasadena, CA 91105-2656

Mailing address

556 S Fair Oaks Ave # 101-249
Pasadena, CA 91105-2656
Phone (626) 482-0290

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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 1

Enrollment IDStateProvider typePAC IDDetails
I20250724003198 CA Practitioner - Nurse Practitioner 4789191834

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Master of Science - Nursing, Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
NP95032901CAMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
J M Geiss DO Apc CurrentSince Jun 23, 2025 Accepting new patients

Locations

520 Superior Ave
Ste 255
Newport Beach, CA 92663
Phone (949) 720-9266

5 Hutton Centre Dr
Ste 950
Santa Ana, CA 92707
Phone (855) 434-7663

28650 Newhall Ranch Rd
Santa Clarita, CA 91355
Phone (661) 347-0051

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1741824000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741824000000",
    "number": "1548069297",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "556 S FAIR OAKS AVE # 101-249",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911052656",
            "telephone_number": "626-482-0290"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "556 S FAIR OAKS AVE # 101-249",
            "city": "PASADENA",
            "state": "CA",
            "postal_code": "911052656",
            "telephone_number": "626-482-0290"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "UNDERWOOD",
        "first_name": "PETER",
        "middle_name": "J",
        "name_prefix": "Mr.",
        "credential": "MSN FNP- BC",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-03-13",
        "last_updated": "2025-03-13",
        "certification_date": "2025-03-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "NP95032901",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Pasadena, CA

Sources for this page

Verify at the official NPI Registry.