David Claude Sidney, MD
Infectious Disease Physician · Santa Rosa, CA
David Claude Sidney, MD is an infectious disease physician with a practice address in Santa Rosa, California, and NPI 1841358975, issued on Dec 4, 2006. Check the license (California A84341, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Claude Sidney
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- A84341 CA
Self-reported in NPPES; status is on the state search - Practice location
- 122 Calistoga Road #396, Santa Rosa, CA 95409
- Phone
- (707) 525-8296
- Enumerated
- Dec 4, 2006
- Record last updated
- Jun 13, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (707) 942-1598
- Medicaid ID
- 00A843410 CA
- Medicare enrollment
- Enrolled (PECOS I20040224000500); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 122 Calistoga Road #396
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shu Yang, MDInfectious Disease Physician1093873119
Verify David Claude Sidney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A84341Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average infectious disease physician in 2024
120 Medicare Part D claims for 23 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Ampicillin Sodium46 claims
- Ceftriaxone25 claims
- Cefazolin Sodium13 claims
- Piperacillin-Tazobactam12 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.
David Claude Sidney among 1,119 infectious disease physician records in California
David Claude Sidney, MD is one of 1,119 infectious disease physician records with a practice address in California. 79% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 54% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1996 · median 2003 among the 735 with a school on file
- Record last updated2014 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in Santa Rosa → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Shu Yang, MDSanta Rosa, CA 954091093873119
- Frederick Drach, M.D.Santa Rosa, CA 954051326083213
- Tiffany Ngai, M.D.Santa Rosa, CA 954051215378930
- Ye ThuSanta Rosa, CA 954051306180146
- Andrew Desruisseau, M.D.Santa Rosa, CA 954031518945658
- Gary Green, MDSanta Rosa, CA 954031124102108
- Alexander Evens, D.O.Turlock, CA 953821114144649
- Jennifer Leoniak, D.O., M.S.Turlock, CA 953821588808703
Common questions
What is David Claude Sidney, MD's NPI number?
David Claude Sidney, MD's National Provider Identifier (NPI) is 1841358975, issued on Dec 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Claude Sidney, MD located?
The NPPES record lists a practice address at 122 Calistoga Road #396, Santa Rosa, CA, 95409. Phone: (707) 525-8296. Providers update this record themselves, so call before visiting.
How can I verify David Claude Sidney, MD's license?
NPPES lists California license number A84341, 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 David Claude Sidney, MD prescribe under Medicare Part D?
In 2024, David Claude Sidney, MD had 120 Medicare Part D claims for 23 beneficiaries; the average among infectious disease physician prescribers was 689. 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.