Prit Oat Sinchai, M.D.

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

A102404 Issued in CA

Practice address

439 E Chapman Ave
Orange, CA 92866-1509

Phone

(714) 769-6386

Fax

(714) 769-6387

NPI assigned

Mar 13, 2007

Last updated

Sep 14, 2026By the provider in NPPES

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

Other names 1

• Prit Oat Sinchai Professional name

Medicare fee-for-service enrollment

Enrolled in CA, FL2 enrollments

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 2

Specialty

Ophthalmology

Education

Indiana University School of Medicine, 2001

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Eye Surgery Associates LLCGroup PAC ID 4688575244, 12 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

75 of 100Reported as individual

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: prit.sinchai.p3@direct.drea.nextgenshare.com

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.

• Eye Surgery Associates LLC

  • Specialist
  • Hollywood, FL
  • NPI 1861589343
  Medicare reassignment Care Compare group NPD
• Oat Sinchai, M.D., a Professional Corporation

  • Ophthalmology Physician
  • Orange, CA
  • NPI 1972849768
  Medicare reassignment Authorized official
• Eye Surgery Associates LLC

  • Ophthalmology Physician
  • Hollywood, FL
  • NPI 1396382719
  NPD
• Florida Vision Institute Inc

  • Ophthalmology Physician
  • Stuart, FL
  • NPI 1083614366
  NPD
• St Joseph Hospital of Orange

  dba Providence St. Joseph Hospital

  • General Acute Care Hospital
  • Orange, CA
  • NPI 1912982216
  NPD (past)

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

{
    "created_epoch": "1173744000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789344000000",
    "number": "1528191269",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "439 E CHAPMAN AVE",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928661509",
            "telephone_number": "714-769-6386",
            "fax_number": "714-769-6387"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "439 E CHAPMAN AVE",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928661509",
            "telephone_number": "714-769-6386",
            "fax_number": "714-769-6387"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3111 N Tustin St Ste 150",
            "address_purpose": "LOCATION",
            "city": "Orange",
            "state": "CA",
            "postal_code": "928651752",
            "country_code": "US",
            "telephone_number": "714-769-6386",
            "fax_number": "714-769-6387",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SINCHAI",
        "first_name": "PRIT",
        "middle_name": "OAT",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-03-13",
        "last_updated": "2026-09-14",
        "certification_date": "2026-09-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "CA",
            "license": "A102404",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "PRIT",
            "last_name": "SINCHAI",
            "middle_name": "OAT",
            "credential": "M.D.",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

• Jennifer L Simpson, MD
• Toron Simpson
• Joe Sims
• Luanne Sims, NP
• Sina Eftekharzadeh DDS Prof Dental Corp
• Lauren Renee Sinclair
• Ashley Sincosky, BCBA
• Lilian Klara Sing
• Lisa Anne Singer, MSN, AGACNP-BC
• Arshdeep Singh

• Ophthalmology Physician in Orange, CA
• Providers in Orange, CA by specialty
• Ophthalmology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 14, 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.