Karyn D'Addio-Riley, DO
Anesthesiology Physician · Sacramento, CA
Karyn D'Addio-Riley, DO is an anesthesiology physician with a practice address in Sacramento, California, and NPI 1841378338, issued on Nov 1, 2006. Check the license (California 20A9460, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Karyn D'Addio-Riley
- Credential
- DO
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 20A9460 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2025 Morse Ave, Sacramento, CA 95825
- Phone
- (916) 973-5000
- Enumerated
- Nov 1, 2006
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070406000282); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 2025 Morse Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karyn D'Addio-Riley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A9460Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Permanente Medical Group IncSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karyn D'Addio-Riley among 7,571 anesthesiology physician records in California
Karyn D'Addio-Riley, DO is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2002 · median 2006 among the 4,868 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
396 anesthesiology physician records list a practice address in Sacramento
They are 396 of the 33,083 NPPES records with a practice address in Sacramento, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Sacramento → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Stuart Auerbach, DOSacramento, CA 958251306896485
- Sandhya Bhat, MDSacramento, CA 958251609954353
- James Boone, MDSacramento, CA 958251598772196
- Cynthia Chui, M.D.Sacramento, CA 958251851374763
- Kevin Dasen, MDSacramento, CA 958251417035122
- William Evans, DOSacramento, CA 958251073691754
- Ronnie Gandhoke, MDSacramento, CA 958251588642656
- Nancy King, MDSacramento, CA 958251346328028
Common questions
What is Karyn D'Addio-Riley, DO's NPI number?
Karyn D'Addio-Riley, DO's National Provider Identifier (NPI) is 1841378338, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karyn D'Addio-Riley, DO located?
The NPPES record lists a practice address at 2025 Morse Ave, Sacramento, CA, 95825. Phone: (916) 973-5000. Providers update this record themselves, so call before visiting.
How can I verify Karyn D'Addio-Riley, DO's license?
NPPES lists California license number 20A9460, 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.
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.