Darwin Leek, D.C.
NPI 1568408110 · Chiropractor · Grass Valley, CA
Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Darwin Leek, D.C. is a Chiropractor provider in Grass Valley, CA (NPI 1568408110).
Provider details
- NPI number
- 1568408110
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 15624DC (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
626 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) |
|---|---|---|
| Chiropractic Manipulative Treatment, 1-2 Spinal Regions98940 | 626 | $27 |
Typical Medicare-allowed amounts for these services range $27–$27 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-21
- Last updated
- 2007-07-09
Frequently asked questions
- What is Darwin Leek's NPI number?
- Darwin Leek's National Provider Identifier (NPI) is 1568408110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darwin Leek's specialty?
- Darwin Leek is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Darwin Leek located?
- Darwin Leek's practice location on file with NPPES is 605 S Auburn St, Grass Valley, CA 95945-7550.
- What is Darwin Leek's phone number?
- The practice phone number listed in the NPPES registry for Darwin Leek is (530) 273-8082.
- Does Darwin Leek accept Medicare?
- Darwin Leek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Darwin Leek's NPI active?
- Yes — Darwin Leek's NPI (1568408110) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.