Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John Walter Lace, MD, FCCP

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1104840461

Dr. John Walter Lace, MD, FCCP is an Internal Medicine in Grass Valley, California. Graduated from University of Pittsburgh School of Medicine in 1986, 40 years ago. Practices with Dignity Health Medical Foundation, a 1,204-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
40
Trained at
University of Pittsburgh School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

140 Litton Dr Ste 120
Grass Valley, CA 95945-5080
Phone: (530) 477-7782
Fax: (530) 477-7792
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence G085476 (CA)

Record details

NPI number1104840461
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , FCCP
Sole proprietorNo
NPI enumeratedJuly 27, 2006
Last updated in NPPESMay 5, 2026
Certification dateMay 5, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Dignity Health Medical Foundation — 1204 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services