Melissa Lauren Peyton, FNP

Primary specialty

Primary Care Nurse PractitionerTaxonomy code 363LP2300X

License

95036792 Issued in CA

Practice address

421 Nut Tree Rd
Vacaville, CA 95687-3508

Phone

(707) 646-5500

NPI assigned

Jun 12, 2024

Last updated

Oct 26, 2025By the provider in NPPES

Sex

Female

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 TX, CA2 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

Specialty

Nurse Practitioner

Education

Other, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northbay Health Medical FoundationGroup PAC ID 3274010871, 207 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northbay Medical Center Hospital, Fairfield, CA, CCN 050367

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

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.

• Northbay Health Medical Foundation

  dba NorthBay Health Medical Network

  • Internal Medicine Physician
  • Fairfield, CA
  • NPI 1760283527
  Medicare reassignment Care Compare group NPD
• Northbay Healthcare Group

  dba dba NorthBay Medical Center

  • General Acute Care Hospital
  • Fairfield, CA
  • NPI 1821147786
  Medicare reassignment NPD
• Family Practice Associates LLP

  • Family Medicine Physician
  • Wichita Falls, TX
  • NPI 1386772978
  Medicare reassignment NPD
• Northbay Healthcare Group

  dba NorthBay VacaValley Hospital

  • Multi-Specialty Clinic/Center
  • Vacaville, CA
  • NPI 1760534713
  NPD

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

• Northbay Healthcare Group

  dba dba NorthBay Medical Center

  • General Acute Care Hospital
  • Fairfield, CA
  • NPI 1821147786
  Care Compare affiliation

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

{
    "created_epoch": "1718150400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761436800000",
    "number": "1679315295",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "421 NUT TREE RD",
            "city": "VACAVILLE",
            "state": "CA",
            "postal_code": "956873508",
            "telephone_number": "707-646-5500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "421 NUT TREE RD",
            "city": "VACAVILLE",
            "state": "CA",
            "postal_code": "956873508",
            "telephone_number": "707-646-5500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PEYTON",
        "first_name": "MELISSA",
        "middle_name": "LAUREN",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-06-12",
        "last_updated": "2025-10-26",
        "certification_date": "2025-10-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP2300X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Primary Care",
            "state": "CA",
            "license": "95036792",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Patricia K Peters, N.P.
• Defne Zeynep Peterson, PT,DPT
• Robert Kay Peterson, M.D.
• William James Peterson, M.D.
• James Robert Petty
• Loan Pham
• Luan Pham
• Yen Hoang Phan, PHARMD
• Piangwarin Phaosawasdi, M.D
• Alexandra Phillips

• Primary Care Nurse Practitioner in Vacaville, CA
• Providers in Vacaville, CA by specialty
• Primary Care Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 26, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.