Loka P Thangamathesvaran, MD

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

MD61536948 Issued in WA

Practice address

1750 112TH Ave NE Ste D050
Bellevue, WA 98004-3779

Phone

(206) 215-3850

Fax

(206) 215-3870

NPI assigned

Apr 6, 2019

Last updated

Jul 31, 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 WA

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

Ophthalmology

Education

Rutgers New Jersey Medical School, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Pacific Northwest Retina PLLCGroup PAC ID 8820494073, 19 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Swedish Medical Center Hospital, Seattle, WA, CCN 500027

Merit-based Incentive Payment System (MIPS)

Final score

83.31 of 100Reported as group

Quality

73.89

Promoting interoperability

100

Improvement activities

40

Cost

70.47

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: loka.thangamathesvaranmd.p16@direct.pnwr.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.

• Pacific Northwest Retina PLLC

  • Retina Specialist (Ophthalmology) Physician
  • Bellevue, WA
  • NPI 1558940387
  Medicare reassignment Care Compare group NPD
• The Retina Surgery Center LLC

  dba The Retina Surgery Center

  • Ambulatory Surgical Clinic/Center
  • Bellevue, WA
  • NPI 1457670648
  NPD
• Proliance Surgeons Inc P S

  dba Proliance Orthopedic Associates

  • Orthopaedic Surgery Physician
  • Renton, WA
  • NPI 1235091463
  NPD (past)

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

• Swedish Health Services

  • General Acute Care Hospital
  • Seattle, WA
  • NPI 1306992151
  Care Compare affiliation

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

{
    "created_epoch": "1554508800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753920000000",
    "number": "1558824680",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "22232 17TH AVE SE STE 308",
            "city": "BOTHELL",
            "state": "WA",
            "postal_code": "980217425",
            "telephone_number": "425-296-3837"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1750 112TH AVE NE STE D050",
            "city": "BELLEVUE",
            "state": "WA",
            "postal_code": "980043779",
            "telephone_number": "206-215-3850",
            "fax_number": "206-215-3870"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THANGAMATHESVARAN",
        "first_name": "LOKA",
        "middle_name": "P",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-04-06",
        "last_updated": "2025-07-31",
        "certification_date": "2025-07-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "WA",
            "license": "MD61536948",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nelson Thai, PT, DPT
• Christine Marie Thain, LM, CPM
• Steven Paull Thain, D.C.
• Himani Suhas Thakar III, R.P.H
• Serena Tham, D.M.D.
• Rasita Thanyathontangsakun, LMP
• Amy Thatcher, RN
• April Thatcher, PHARM.D
• John L Thayer, M.D.
• Mary Kathryn Thayer, M.D.

• Ophthalmology Physician in Bellevue, WA
• Providers in Bellevue, WA by specialty
• Ophthalmology Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 31, 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.