John William McNeil II, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

A161553 Issued in CA

Practice address

333 Mercy Ave
Merced, CA 95340-8319

Phone

(209) 564-5000

NPI assigned

Apr 14, 2017

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in CA, MO2 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

Family Practice

Education

University of California, San Diego School of Medicine, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mercy East Ambulatory Services LLCGroup PAC ID 2365739240, 102 clinicians

Mercy Southern Missouri Ambulatory Services LLCGroup PAC ID 5193089621, 32 clinicians

Lester E Cox Medical CentersGroup PAC ID 1254248917, 336 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Medical Center Hospital, Merced, CA, CCN 050444
• Cox Medical Centers Hospital, Springfield, MO, CCN 260040

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jmcneil608793@hisp.ehr.sutterhealth.org
• FHIR API: https://api.platform.athenahealth.com/10944/brand/3/csg/1/fhir/r4
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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.

• Mercy East Ambulatory Services LLC

  • Urgent Care Clinic/Center
  • Chesterfield, MO
  • NPI 1134673148

  MO

  Medicare reassignment Care Compare group NPD
• Mercy Southern Missouri Ambulatory Services LLC

  • Urgent Care Clinic/Center
  • Springfield, MO
  • NPI 1871094052

  MO

  Medicare reassignment Care Compare group NPD
• HMTS, Inc

  • Urgent Care Clinic/Center
  • Irvine, CA
  • NPI 1326828575

  CA, Family Medicine

  Medicare reassignment NPD
• Hoag Clinic

  • Primary Care Clinic/Center
  • Newport Beach, CA
  • NPI 1942799523

  CA

  Medicare reassignment NPD
• San Joaquin Emergency Medical Associates

  • Emergency Medicine Physician
  • Merced, CA
  • NPI 1588960413

  CA, Emergency Medicine

  Medicare reassignment NPD
• Lester E. Cox Medical Centers

  • Family Medicine Physician
  • Shell Knob, MO
  • NPI 1538334396

  Family Medicine, MO

  Medicare reassignment NPD
• Sutter Valley Medical Foundation

  • Multi-Specialty Clinic/Center
  • Modesto, CA
  • NPI 1669846986

  Family Medicine

  NPD
• Sutter Valley Medical Foundation

  • Durable Medical Equipment & Medical Supplies
  • Tracy, CA
  • NPI 1720930712
  NPD
• Sutter Valley Medical Foundation

  • Multi-Specialty Clinic/Center
  • Sacramento, CA
  • NPI 1952327256

  Family Medicine

  NPD
• Lester E Cox Medical Centers

  • Neurology Physician
  • Springfield, MO
  • NPI 1023763414
  NPD
• Lester E Cox Medical Centers

  • Family Medicine Physician
  • Springfield, MO
  • NPI 1922126077

  Emergency Medicine

  NPD
• Lester E Cox Medical Centers

  • Family Medicine Physician
  • Willow Springs, MO
  • NPI 1417122326

  Family Medicine

  NPD (past)

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

• Dignity Health

  • General Acute Care Hospital
  • Merced, CA
  • NPI 1518018191

  Hospital

  Care Compare affiliation
• Lester E Cox Medical Centers

  • General Acute Care Hospital
  • Springfield, MO
  • NPI 1093740128

  Hospital

  Care Compare affiliation
• Lester E Cox Medical Centers

  • Land Ambulance
  • Springfield, MO
  • NPI 1114044823

  Hospital

  Care Compare affiliation
• Lester E. Cox Medical Centers

  • Air Ambulance
  • Springfield, MO
  • NPI 1578680286

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1492128000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754265600000",
    "number": "1003340126",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "340 S LEMON AVE # 6518",
            "city": "WALNUT",
            "state": "CA",
            "postal_code": "917892706",
            "telephone_number": "310-702-3639"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "333 MERCY AVE",
            "city": "MERCED",
            "state": "CA",
            "postal_code": "953408319",
            "telephone_number": "209-564-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1722 Clarkson Rd",
            "address_purpose": "LOCATION",
            "city": "Chesterfield",
            "state": "MO",
            "postal_code": "630174976",
            "country_code": "US",
            "telephone_number": "636-206-2665",
            "fax_number": "636-206-2664",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1000 E Primrose St Ste 170",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "MO",
            "postal_code": "658075192",
            "country_code": "US",
            "telephone_number": "417-269-9853",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCNEIL",
        "first_name": "JOHN",
        "middle_name": "WILLIAM",
        "name_prefix": "Dr.",
        "name_suffix": "II",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-04-14",
        "last_updated": "2025-08-04",
        "certification_date": "2025-08-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MO",
            "license": "2025002188",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A161553",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kirk Patrick McKelvey, PSY.D.
• Brianna Marie McKinney
• Jill Tamsen McLeod, PA
• Kathleen Elizabeth McLoughlin, MD
• Rebecca Lynn McMullen
• Amy Lyn McNeill
• Kathleen Rose McPhail, RN
• Dalila Isabel McRoy
• McSwain Union Elementary
• Joshua McWealth

• All providers in Merced, CA
• Emergency Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 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.