Cornelis Millard Elmes, MD

Key facts

NPI

1245280460

Entity type

Individual (NPI type 1)

Primary specialty

Orthopaedic Surgery Physician 207X00000X

License

218698 (NY)

Practice address

1445 Portland Ave Ste 210
Rochester, NY 14621-3008

Phone

(585) 266-2010

Fax

(585) 266-5363

NPI assigned

May 10, 2006

Sex

Male

Sole proprietor

No

Organizations & group practices 9

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.

• Northbay Health Medical Foundation Internal Medicine Physician · Fairfield, CA · NPI 1760283527
  Medicare reassignment Care Compare group NPD CA · ORTHOPAEDIC SURGERY
• Northbay Healthcare Group General Acute Care Hospital · Fairfield, CA · NPI 1821147786
  Medicare reassignment Care Compare group NPD CA
• Northbay Healthcare Group Multi-Specialty Clinic/Center · Vacaville, CA · NPI 1760534713
  Care Compare group NPD
• Lawrenceburg Orthopaedics, PC Specialist · Lawrenceburg, TN · NPI 1700834579
  NPD (past) Authorized official
• Northbay Healthcare Group Community/Retail Pharmacy · Vacaville, CA · NPI 1558891325
  Care Compare group
• California Physician Consultants, PC Orthopaedic Surgery Physician · Mission Viejo, CA · NPI 1013231893
  NPD (past) ORTHOPAEDIC SURGERY
• Elwood Paul Reid MD Inc Orthopaedic Surgery Physician · Grass Valley, CA · NPI 1639331341
  NPD (past) ORTHOPAEDIC SURGERY
• Fairfield on-Call Specialists PC Obstetrics & Gynecology Physician · Fairfield, CA · NPI 1588849491
  NPD (past) ORTHOPAEDIC SURGERY
• Mid-South Orthopedic Hospitalists LLC Orthopaedic Surgery Physician · Southaven, MS · NPI 1114175585
  NPD (past) ORTHOPAEDIC SURGERY

Hospital & facility affiliations 1

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

• Northbay Healthcare Group General Acute Care Hospital · Fairfield, CA · NPI 1821147786
  Care Compare affiliation Hospital

Medicare Care Compare profile

Specialty

Orthopedic Surgery

Education

Northwestern University Feinberg Medical School, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Northbay Physicians Surgery Center, LLC (336 clinicians)
Northbay Health Medical Foundation (207 clinicians)

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northbay Medical Center Hospital · Fairfield, CA · CCN 050367

Procedures performed for Medicare patients

Medicare participation

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

National Provider Directory

Medicare enrollment (NPD)

Yes

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Specialties & licenses

Addresses

Electronic endpoints

The complete NPPES record for this NPI in the NPI Registry API JSON format, last updated by the provider on Aug 14, 2026.

{
    "created_epoch": "1147219200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786665600000",
    "number": "1245280460",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 KINGS HWY S",
            "city": "ROCHESTER",
            "state": "NY",
            "postal_code": "146175504",
            "fax_number": "585-922-1011"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1445 PORTLAND AVE STE 210",
            "city": "ROCHESTER",
            "state": "NY",
            "postal_code": "146213008",
            "telephone_number": "585-266-2010",
            "fax_number": "585-266-5363"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2500 Hilborn Rd",
            "address_purpose": "LOCATION",
            "city": "Fairfield",
            "state": "CA",
            "postal_code": "945341097",
            "country_code": "US",
            "telephone_number": "707-646-5599",
            "fax_number": "707-646-5571",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ELMES",
        "first_name": "CORNELIS",
        "middle_name": "MILLARD",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-10",
        "last_updated": "2026-08-14",
        "certification_date": "2026-08-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207XX0801X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Orthopaedic Trauma",
            "state": "TN",
            "license": "41021",
            "primary": false
        },
        {
            "code": "207XX0801X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Orthopaedic Trauma",
            "state": "CA",
            "license": "A86984",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "NY",
            "license": "218698",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "celmes449723@direct.rochesterregional.org",
            "affiliation": "N",
            "endpointDescription": "Rochester Regional Health",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1445 Portland Ave Ste 210",
            "city": "Rochester",
            "state": "NY",
            "country_code": "US",
            "postal_code": "146213008",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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