John Walter Lace, M.D., F.C.C.P.

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

G085476 Issued in CA

Practice address

140 Litton Dr Ste 120
Grass Valley, CA 95945-5080

Phone

(530) 477-7782

Fax

(530) 477-7792

NPI assigned

Jul 27, 2006

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 identifiers 1

Medicare fee-for-service enrollment

Enrolled in CA

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

Internal MedicineAlso: Critical Care (Intensivists)

Education

University of Pittsburgh School of Medicine, 1986

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Dignity Health Medical FoundationGroup PAC ID 7810800661, 1,211 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Sierra Nevada Memorial Hospital Hospital, Grass Valley, CA, CCN 050150

Merit-based Incentive Payment System (MIPS)

Final score

99.64 of 100Reported as apm

Quality

86.27

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Dignity Health Medical Foundation

  • Multi-Specialty Clinic/Center
  • Sacramento, CA
  • NPI 1700803418
  Medicare reassignment Care Compare group NPD
• Dignity Health Medical Foundation

  • Multi-Specialty Clinic/Center
  • Redding, CA
  • NPI 1912288432
  NPD
• Dignity Health

  • General Acute Care Hospital
  • Carmichael, CA
  • NPI 1972541498
  NPD (past)
• Dignity Health Medical Foundation

  • Multi-Specialty Clinic/Center
  • Grass Valley, CA
  • NPI 1043456106
  NPD (past)
• Sierra Nevada Memorial-Miners Hospital

  • General Acute Care Hospital
  • Grass Valley, CA
  • NPI 1659361392
  NPD (past)

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

• Sierra Nevada Memorial-Miners Hospital

  • General Acute Care Hospital
  • Grass Valley, CA
  • NPI 1659361392
  Care Compare affiliation

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

{
    "created_epoch": "1153958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777939200000",
    "number": "1104840461",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "140 LITTON DR STE 120",
            "city": "GRASS VALLEY",
            "state": "CA",
            "postal_code": "959455080",
            "telephone_number": "530-477-7782",
            "fax_number": "530-477-7792"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "140 LITTON DR STE 120",
            "city": "GRASS VALLEY",
            "state": "CA",
            "postal_code": "959455080",
            "telephone_number": "530-477-7782",
            "fax_number": "530-477-7792"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LACE",
        "first_name": "JOHN",
        "middle_name": "WALTER",
        "name_prefix": "Dr.",
        "credential": "M.D., F.C.C.P.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-27",
        "last_updated": "2026-05-05",
        "certification_date": "2026-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "CA",
            "license": "G085476",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G854760",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Ganesh Arun Kulkarni, M.D;
• Kelley Kay Kull
• Joel Kyne, CADC-II
• Stacie La Jeunesse, CPNP
• Gyspy S La'More
• Catari Lacorazza
• Heather N Laflamme
• Byron Fisk Lake, M.D.
• Michaela Lake
• Margaret Lally

• Critical Care Medicine (Internal Medicine) Physician in Grass Valley, CA
• Providers in Grass Valley, CA by specialty
• Critical Care Medicine (Internal Medicine) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 5, 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.