Byron Fisk Lake, M.D.
Family Medicine Physician · Grass Valley, CA
Byron Fisk Lake, M.D. is a family medicine physician with a practice address in Grass Valley, California, and NPI 1891832242, issued on Feb 1, 2007. Check the license (California G58831, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Byron Fisk Lake
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G58831 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Sierra College Dr Ste 170, Grass Valley, CA 95945
- Phone
- (530) 273-4376
- Enumerated
- Feb 1, 2007
- Record last updated
- Feb 20, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (530) 273-6426
- Medicare enrollment
- Enrolled (PECOS I20080212000697); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Byron Fisk Lake in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G58831Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% more Medicare Part D claims than the average family medicine physician in 2024
6,548 Medicare Part D claims for 542 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 332 claims were for opioids.
Most prescribed
- Atorvastatin Calcium562 claims
- Amlodipine Besylate276 claims
- Tamsulosin Hcl237 claims
- Losartan Potassium218 claims
- Hydrocodone-Acetaminophen203 claims
- Hydrochlorothiazide201 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.
Byron Fisk Lake among 17,133 family medicine physician records in California
Byron Fisk Lake, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1985 · median 2005 among the 10,652 with a school on file
- Record last updated2014 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 family medicine physician records list a practice address in Grass Valley
They are 36 of the 1,540 NPPES records with a practice address in Grass Valley, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Grass Valley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Garrett Eckerling, M.D.Grass Valley, CA 959451215937388
- Jill Fitzpatrick, MDGrass Valley, CA 959451689640658
- Linda Foshagen, DOGrass Valley, CA 959451568420750
- Constance Gaulter, M.D.Grass Valley, CA 959451508881459
- John Jackson, MDGrass Valley, CA 959451487689840
- Frank Lang, M.D.Grass Valley, CA 959451417942939
- Veronica Minier, MDGrass Valley, CA 959451720050909
- Neva Monigatti Lake, MDGrass Valley, CA 959451265487383
Common questions
What is Byron Fisk Lake, M.D.'s NPI number?
Byron Fisk Lake, M.D.'s National Provider Identifier (NPI) is 1891832242, issued on Feb 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Byron Fisk Lake, M.D. located?
The NPPES record lists a practice address at 300 Sierra College Dr Ste 170, Grass Valley, CA, 95945. Phone: (530) 273-4376. Providers update this record themselves, so call before visiting.
How can I verify Byron Fisk Lake, M.D.'s license?
NPPES lists California license number G58831, 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 Byron Fisk Lake, M.D. prescribe under Medicare Part D?
In 2024, Byron Fisk Lake, M.D. had 6,548 Medicare Part D claims for 542 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.