Erik J Petersen, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

A137589 Issued in CA

Practice address

999 N Tustin Ave Ste 216
Santa Ana, CA 92705-6506

Phone

(714) 545-5550

Fax

(949) 609-0374

NPI assigned

May 7, 2007

Sex

Male

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 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

Specialty

Psychiatry

Education

Virginia Commonwealth University, School of Medicine, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Pacific Neuropsychiatric Specialists IncGroup PAC ID 3375796170, 70 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

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.

• Pacific Neuropsychiatric Specialists Inc.

  • Psychiatry Physician
  • Costa Mesa, CA
  • NPI 1356685218
  Medicare reassignment Care Compare group NPD
• Hoag Hospital

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1689864365
  NPD (past)
• Market Pharmacy LLC

  dba Regions Pharmacy

  • Community/Retail Pharmacy
  • Santa Ana, CA
  • NPI 1194405076
  NPD (past)
• Ananda B. Chellappan Inc

  dba Mental Wellness Center

  • Psychiatry Physician
  • Richmond, VA
  • NPI 1730448358
  NPD (past)

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

{
    "created_epoch": "1178496000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771372800000",
    "number": "1922210251",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3151 AIRWAY AVE STE G1",
            "city": "COSTA MESA",
            "state": "CA",
            "postal_code": "926264624",
            "telephone_number": "714-545-5550",
            "fax_number": "714-708-2588"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "999 N TUSTIN AVE STE 216",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927056506",
            "telephone_number": "714-545-5550",
            "fax_number": "949-609-0374"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PETERSEN",
        "first_name": "ERIK",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-07",
        "last_updated": "2026-02-18",
        "certification_date": "2026-02-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A137589",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kaitlin B Perry
• Persue Health Partnership
• Pes-Ebs.Inc.
• Pete Thomas DPM Professional Corporation
• Peter V. Le D.D.S. & Bich-Thuy Hoang D.D.S.
• Danielle Peterson
• Elaine Peterson, PA
• Jerome N. Peterson, DDS
• Branah Petrey, ABAT
• Odeta Petri, DDS

• Psychiatry Physician in Santa Ana, CA
• Providers in Santa Ana, CA by specialty
• Psychiatry Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 18, 2026; 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.