Christopher Claydon, M.D.
NPI 1518965235 · Geriatric Medicine (Family Medicine) Physician · Grass Valley, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Claydon, M.D. is a Geriatric Medicine (Family Medicine) Physician provider in Grass Valley, CA (NPI 1518965235).
Provider details
- NPI number
- 1518965235
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A32908 (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
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
617 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) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 377 | $46 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 240 | $60 |
Typical Medicare-allowed amounts for these services range $46–$60 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Levothyroxine Sodium | 51 |
| Apixabanbrand: Eliquis | 26 |
| Latanoprost | 25 |
| Finasteride | 23 |
| Atorvastatin Calcium | 17 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 14 |
| Midodrine Hcl | 14 |
| Carvedilol | 13 |
| Donepezil Hcl | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-07
- Last updated
- 2012-05-01
Frequently asked questions
- What is Christopher Claydon's NPI number?
- Christopher Claydon's National Provider Identifier (NPI) is 1518965235, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Claydon's specialty?
- Christopher Claydon is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Claydon located?
- Christopher Claydon's practice location on file with NPPES is 150 Catherine Ln, Grass Valley, CA 95945-5719.
- What is Christopher Claydon's phone number?
- The practice phone number listed in the NPPES registry for Christopher Claydon is (530) 271-2100.
- Does Christopher Claydon accept Medicare?
- Christopher Claydon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Claydon's NPI active?
- Yes — Christopher Claydon's NPI (1518965235) is active in the NPPES registry as of the last update on 2012-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.