NPIMap

Individual provider Active NPI

Mark Peters Foster, M.D.

  • Family Medicine Physician
  • Laguna Hills, CA
National Provider Identifier
1548338908
Registry record updated Nov 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
A85216 Issued in CA
Practice address
24411 Health Center Dr
Suite 460
Laguna Hills, CA 92653-3651
Phone
(949) 373-7799
Fax
(949) 334-8377
NPI assigned
Dec 1, 2006
Last updated
Nov 16, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 16, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X A85216 CA Primary

Addresses

Primary practice location

24411 Health Center Dr
Suite 460
Laguna Hills, CA 92653-3651

Mailing address

PO Box 35380
Las Vegas, NV 89133-5380
Phone (702) 579-3203

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050719000734 CA Practitioner - Family Practice 6507893849 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Boston University School of Medicine, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Saddleback Medical Group IncGroup PAC ID 5092606905, 27 clinicians
Paloma Medical Group IncGroup PAC ID 5193821908, 18 clinicians

Practice addresses (Care Compare)

24221 Calle de la Louisa
Laguna Hills, CA 92653-3642
Phone (949) 465-8155

24411 Health Ctr Dr
Suite 460
Laguna Hills, CA 92653-3687
Phone (949) 465-8155

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
78.94 of 100Reported as individual
Quality
85.91
Promoting interoperability
69
Improvement activities
40
Cost
69.71

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Saddleback Medical Group Inc CurrentSince Jan 1, 2013 Accepting new patients
Healthcare Partners Affiliates Medical Group Family Medicine Current Accepting new patients
Healthcare Partners Affiliates Medical Group CurrentSince Jul 1, 2025 Accepting new patients
Healthcare Partners Affiliates Medical Group CurrentSince Jul 1, 2025 Accepting new patients
Memorial Medical Group Inc Past Accepting new patients
Paul D. Corona, M.D., Inc. Family Medicine Past Accepting new patients

Locations

1236 N Magnolia Ave
Anaheim, CA 92801
Phone (714) 995-1000

5957 W Ramsey St
Banning, CA 92220
Phone (951) 845-8864

2910 Jefferson St
Ste 100
Carlsbad, CA 92008
Phone (760) 729-8600

824 E Carson St
Ste 104
Carson, CA 90745
Phone (310) 830-9706

24221 Calle de la Louisa
Ste 200
Laguna Hills, CA 92653
Phone (949) 465-8155

24221 Calle de la Louisa
Ste 400
Laguna Hills, CA 92653
Phone (949) 465-8155

24411 Health Center Dr
Ste 460
Laguna Hills, CA 92653
Phone (949) 373-7799

1700 N Waterman Ave
Sn Bernrdno, CA 92404
Phone (909) 883-8611

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: markp.foster.p15@direct.monarchhealthcare.nextgenshare.com

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 5

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": "1164931200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763251200000",
    "number": "1548338908",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35380",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891335380",
            "telephone_number": "702-579-3203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24411 HEALTH CENTER DR",
            "address_2": "SUITE 460",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926533651",
            "telephone_number": "949-373-7799",
            "fax_number": "949-334-8377"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FOSTER",
        "first_name": "MARK",
        "middle_name": "PETERS",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-01",
        "last_updated": "2025-11-16",
        "certification_date": "2025-11-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A85216",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Laguna Hills, CA

Sources for this page

Verify at the official NPI Registry.