Individual provider Active NPI

Natalie Howlett

  • Internal Medicine Physician
  • Palo Alto, CA
National Provider Identifier
1154776094
Registry record updated Aug 18, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A155075 Issued in CA
Practice address
900 Blake Wilbur Dr
Palo Alto, CA 94304-2201
Phone
(650) 723-6961
NPI assigned
Apr 28, 2016
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 18, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Rheumatology Physician 207RR0500X A155075 CA
Internal Medicine Physician 207R00000X A155075 CA Primary

Addresses

Primary practice location

900 Blake Wilbur Dr
Palo Alto, CA 94304-2201

Mailing address

4000 Civic Center Dr Ste 200a
San Rafael, CA 94903-5233

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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20191114002112 CA Practitioner - Internal MedicinePractitioner - Rheumatology 6800135401 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Rheumatology
Education
State University of New York Downstate Medical Center, 2016
Medicare assignment
May accept Medicare assignment
Telehealth
Offers telehealth services
Group practices
Regents Univ of California UCSFGroup PAC ID 6305160300, 276 clinicians

Practice addresses (Care Compare)

505 Parnassus Ave
San Francisco, CA 94143-2204
Phone (415) 476-1000

Hospital & facility affiliations

  • Marinhealth Medical Center Hospital, Greenbrae, CA, CCN 050360
  • Sonoma Valley Hospital Hospital, Sonoma, CA, CCN 050090
  • Novato Community Hospital Hospital, Novato, CA, CCN 050131
  • Santa Clara Valley Medical Center Hospital, San Jose, CA, CCN 050038

Merit-based Incentive Payment System (MIPS)

Final score
61 of 100Reported as group
Quality
59.41
Promoting interoperability
0
Improvement activities
40
Cost
71.45

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A155075CAMDRheumatology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
County of Santa Clara CurrentSince Jul 12, 2022 Accepting new patients
County of Santa Clara Internal Medicine CurrentSince Jul 12, 2022 Accepting new patients
Regents Univ of California UCSF Internal Medicine CurrentSince Aug 19, 2025 Accepting new patients
County of Santa Clara CurrentSince Jul 12, 2022 Accepting new patients
County of Santa Clara Current Accepting new patients
County of Santa Clara Current Accepting new patients
County of Santa Clara CurrentSince Jul 12, 2022 Accepting new patients

Locations

7475 Camino Arroyo
Gilroy, CA 95020
Phone (408) 852-2400

757 Westwood Plz
Los Angeles, CA 90095
Phone (310) 267-9448

900 Blake Wilbur Dr
Palo Alto, CA 94304
Phone (650) 498-6004

505 Parnassus Ave
San Francisco, CA 94143
Phone (415) 476-9058

1996 Lundy Ave
San Jose, CA 95131
Phone (408) 299-5846

1993 McKee Rd
San Jose, CA 95116
Phone (408) 254-6320

751 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-5110

2101 Alexian Dr
San Jose, CA 95116
Phone (408) 272-6050

751 S Bascom Ave
Fl 5
San Jose, CA 95128

750 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-2320

500 Tully Rd
San Jose, CA 95111
Phone (408) 817-1433

4000 Civic Center Dr
San Rafael, CA 94903
Phone (415) 492-3333

4000 Civic Center Dr
Ste 200A
San Rafael, CA 94903
Phone (415) 444-0300

660 S Fair Oaks Ave
Sunnyvale, CA 94086
Phone (408) 885-7366

Interoperability endpoints

  • Direct secure messaging: hnatalie446030@direct-ucsfmedicalcenter.org

Organizations & group practices 7

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 4

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": "1461801600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755475200000",
    "number": "1154776094",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4000 CIVIC CENTER DR STE 200A",
            "city": "SAN RAFAEL",
            "state": "CA",
            "postal_code": "949035233"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 BLAKE WILBUR DR",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943042201",
            "telephone_number": "650-723-6961"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOWLETT",
        "first_name": "NATALIE",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2016-04-28",
        "last_updated": "2025-08-18",
        "certification_date": "2025-08-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "CA",
            "license": "A155075",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A155075",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.