John Walter Lace, M.D., F.C.C.P.
Critical Care Medicine (Internal Medicine) Physician · Grass Valley, CA
John Walter Lace, M.D., F.C.C.P. is a critical care medicine (internal medicine) physician with a practice address in Grass Valley, California, and NPI 1104840461, issued on Jul 27, 2006. Check the license (California G085476, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Walter Lace
- Credential
- M.D., F.C.C.P.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- G085476 CA
Self-reported in NPPES; status is on the state search - Practice location
- 140 Litton Dr Ste 120, Grass Valley, CA 95945
- Phone
- (530) 477-7782
- Enumerated
- Jul 27, 2006
- Record last updated
- May 5, 2026
- Fax
- (530) 477-7792
- Medicaid ID
- 00G854760 CA
- Medicare enrollment
- Enrolled (PECOS I20040921000293); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 1986
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 140 Litton Dr Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linda McIntosh, NPCommunity Health Registered Nurse1497977219
- Huy Nguyen, D.O.Family Medicine Physician1467400853
Verify John Walter Lace in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G085476Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% more Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
996 Medicare Part D claims for 200 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.
Most prescribed
- Trelegy Ellipta145 claims
- Prednisone134 claims
- Albuterol Sulfate Hfa114 claims
- Arnuity Ellipta72 claims
- Anoro Ellipta68 claims
- Montelukast Sodium44 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $120.26
2 payments; by number, the most common kind was food and beverage; the largest payer was Mallinckrodt Hospital Products Inc. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Dignity Health Medical FoundationGrass Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Walter Lace among 723 critical care medicine (internal medicine) physician records in California
John Walter Lace, M.D., F.C.C.P. is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 60% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1986 · median 2005 among the 559 with a school on file
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in Grass Valley → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Laurence Seaman, MDOroville, CA 959661295780971
- Sukhraj Balhan, MDMarysville, CA 959011194169292
- Timothy Clark, D.O.Marysville, CA 959011932420320
- Sylvan Cox, M.D.Redding, CA 960011629464938
- David Johnson, M.D.Redding, CA 960011801807805
- Amjad Musthafa, M.D.Redding, CA 960011558372581
- Ariosto Rosado, MDRedding, CA 960011255310041
- Frank Sebat, M.D.Redding, CA 960011255343208
Common questions
What is John Walter Lace, M.D., F.C.C.P.'s NPI number?
John Walter Lace, M.D., F.C.C.P.'s National Provider Identifier (NPI) is 1104840461, issued on Jul 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Walter Lace, M.D., F.C.C.P. located?
The NPPES record lists a practice address at 140 Litton Dr Ste 120, Grass Valley, CA, 95945. Phone: (530) 477-7782. Providers update this record themselves, so call before visiting.
How can I verify John Walter Lace, M.D., F.C.C.P.'s license?
NPPES lists California license number G085476, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Walter Lace, M.D., F.C.C.P. prescribe under Medicare Part D?
In 2024, John Walter Lace, M.D., F.C.C.P. had 996 Medicare Part D claims for 200 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
What is John Walter Lace, M.D., F.C.C.P.'s MIPS final score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.