Katie Lynn Topping, M.D.

Primary specialty

Ophthalmology PhysicianTaxonomy code 207W00000X

License

A143601 Issued in CA

Practice address

300 Pasteur Dr
Stanford, CA 94305-2200

Phone

(650) 723-4000

NPI assigned

Mar 30, 2012

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Katie Lynn Wetsch Former name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in CA, NV2 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

University of North Dakota School of Medicine, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Island Eye Specialists ApcGroup PAC ID 8325402597, 4 clinicians

Faculty Physicians and Surgeons of LlusmGroup PAC ID 1153227814, 1,313 clinicians

Southern California Permanente Medical GroupGroup PAC ID 6002729175, 11,250 clinicians

Marcus J Ko MD PLLCGroup PAC ID 0840422671, 3 clinicians

Eye Physicians Medical Surgical CenterGroup PAC ID 0042283681, 9 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Riverside University Health System-Medical Center Hospital, Moreno Valley, CA, CCN 050292
• Sharp Chula Vista Medical Center Hospital, Chula Vista, CA, CCN 050222
• Renown Regional Medical Center Hospital, Reno, NV, CCN 290001

Merit-based Incentive Payment System (MIPS)

Final score

88.87 of 100Reported as group

Quality

72.13

Promoting interoperability

80

Improvement activities

40

Cost

77.36

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ktoppingmd@eyephysmedsurg.direct.eyemdemr.com
• Direct secure messaging: ktopping86762@direct.llu.edu

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.

• Eye Physicians Medical Surgical Center

  • Eyewear Supplier
  • Chula Vista, CA
  • NPI 1538135694

  Ophthalmology

  Medicare reassignment Care Compare group NPD
• Faculty Physicians and Surgeons of Llusm

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Apple Valley, CA
  • NPI 1205009917
  Medicare reassignment Care Compare group NPD
• Island Eye Specialists, Apc

  • Ophthalmology Physician
  • Coronado, CA
  • NPI 1154008027
  Medicare reassignment Care Compare group NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Baldwin Park, CA
  • NPI 1770515280
  Medicare reassignment Care Compare group NPD
• Marcus J. Ko, M.D., PLLC

  • Ophthalmology Physician
  • Reno, NV
  • NPI 1730505736
  Medicare reassignment Care Compare group
• Faculty Physicians and Surgeons of Llusm

  • Ophthalmology Physician
  • Loma Linda, CA
  • NPI 1437109469
  NPD
• Faculty Physicians and Surgeons of Llusm

  • Family Medicine Physician
  • Moreno Valley, CA
  • NPI 1558788331
  NPD
• Faculty Physicians and Surgeons of Llusm

  • Transplant Surgery Physician
  • Rancho Mirage, CA
  • NPI 1689002024
  NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • San Diego, CA
  • NPI 1225060742
  NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Santa Clarita, CA
  • NPI 1316409410
  NPD
• Faculty Physicians and Surgeons of Llusm

  • Orthopaedic Surgery Physician
  • Loma Linda, CA
  • NPI 1275582918
  NPD (past)

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

• County of Riverside

  • General Acute Care Hospital
  • Moreno Valley, CA
  • NPI 1821159195
  Care Compare affiliation
• Sharp Chula Vista Medical Center

  • General Acute Care Hospital
  • Chula Vista, CA
  • NPI 1396728630
  Care Compare affiliation
• Renown Regional Medical Center

  • General Acute Care Hospital
  • Reno, NV
  • NPI 1124098421
  Care Compare affiliation
• Renown Regional Medical Center

  • General Acute Care Hospital
  • Sparks, NV
  • NPI 1932517299
  Care Compare affiliation

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

{
    "created_epoch": "1333065600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774569600000",
    "number": "1215203534",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5435 RENO CORPORATE DR STE 100",
            "city": "RENO",
            "state": "NV",
            "postal_code": "895112624",
            "telephone_number": "775-871-2100",
            "fax_number": "775-322-8388"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TOPPING",
        "first_name": "KATIE",
        "middle_name": "LYNN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-03-30",
        "last_updated": "2026-03-27",
        "certification_date": "2026-03-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "CA",
            "license": "A143601",
            "primary": true
        },
        {
            "code": "207WX0200X",
            "taxonomy_group": "",
            "desc": "Ophthalmology, Ophthalmic Plastic and Reconstructive Surgery",
            "state": "NV",
            "license": "28841",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwest.kp.org:14430/Interconnect-prodcalgateway/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/scalceq",
            "affiliation": "Y",
            "endpointDescription": "Carequality",
            "affiliationName": "Southern California Permanente Medical Group",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "4647 Zion Ave",
            "city": "San Diego",
            "state": "CA",
            "country_code": "US",
            "postal_code": "921202507",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "KATIE",
            "last_name": "WETSCH",
            "middle_name": "LYNN",
            "credential": "M.D.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Ka Wing Calvin Tong, M.D.
• Michelle Sun Tong, MD
• Aubrey Michelle Toole, PHD
• Fabio Mauricio Topolski, VISITING
• Nicole Jane Topp, MD
• Stefan Torelli, MD
• Natalie Julia Torok, M.D.
• Lenie Torregrossa, PHD
• Isabell I Torres-Yaya, NP
• Edwin Omar Torres, MD

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 27, 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.