Byron Lake, M.D.
NPI 1891832242 · Family Medicine Physician · Grass Valley, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Byron Lake, M.D. is a Family Medicine Physician provider in Grass Valley, CA (NPI 1891832242).
Provider details
- NPI number
- 1891832242
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G58831 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,993 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 825 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 289 | $88 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 283 | $19 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 282 | $125 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 146 | $60 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 109 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 562 | 164 |
| Amlodipine Besylate | 276 | 76 |
| Tamsulosin Hcl | 237 | 66 |
| Losartan Potassium | 218 | 66 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 203 | 43 |
| Hydrochlorothiazide | 201 | 59 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-01
- Last updated
- 2014-02-20
Frequently asked questions
- What is Byron Lake's NPI number?
- Byron Lake's National Provider Identifier (NPI) is 1891832242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Byron Lake's specialty?
- Byron Lake is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Byron Lake located?
- Byron Lake's practice location on file with NPPES is 300 Sierra College Dr Ste 170, Grass Valley, CA 95945-5083.
- What is Byron Lake's phone number?
- The practice phone number listed in the NPPES registry for Byron Lake is (530) 273-4376.
- Does Byron Lake accept Medicare?
- Byron Lake is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Byron Lake's NPI active?
- Yes — Byron Lake's NPI (1891832242) is active in the NPPES registry as of the last update on 2014-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.