Rhiannon Christine Ryan
Family Medicine Physician · San Diego, CA
Rhiannon Christine Ryan is a family medicine physician with a practice address in San Diego, California, and NPI 1184205668, issued on Apr 16, 2021. Check the license (California 20A22746, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rhiannon Christine Ryan
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A22746 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9333 Genesee Ave, San Diego, CA 92121
- Phone
- (800) 926-8273
- Enumerated
- Apr 16, 2021
- Record last updated
- Aug 13, 2024
- Medicare enrollment
- Enrolled (PECOS I20240805002031); accepts Medicare assignment
- Medical or professional school
- Touro Un Col Of Osteopathic Medicine, Henderson, 2021
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 9333 Genesee Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rhiannon Christine Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A22746Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family medicine physician in 2024
445 Medicare Part D claims for 93 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium45 claims
- Amlodipine Besylate39 claims
- Hydrochlorothiazide20 claims
- Lisinopril17 claims
- Levothyroxine Sodium15 claims
- Tamsulosin Hcl14 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.
Bills Medicare through 2 group practices
- Regents OF The University OF CaliforniaSan Diego, CA
- Sharp Rees-Stealy Medical Group IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rhiannon Christine Ryan among 17,133 family medicine physician records in California
Rhiannon Christine Ryan is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2021 · median 2005 among the 10,652 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
780 family medicine physician records list a practice address in San Diego
They are 780 of the 52,937 NPPES records with a practice address in San Diego, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Diego → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Basil Abramowitz, M.D.San Diego, CA 921211104832047
- Stanley Besser, M.D.San Diego, CA 921211760490031
- Patricia Brady, M.D.San Diego, CA 921211952390437
- Amy Chilingirian, DOSan Diego, CA 921211477516706
- Silvia Del Riego, M.D.San Diego, CA 921211063431591
- Cindy Hsu, MDSan Diego, CA 921211609980770
- Christopher Kelsey, MDSan Diega, CA 921211902867419
- Jane Kim, D.O.San Diego, CA 921211497785810
Common questions
What is Rhiannon Christine Ryan's NPI number?
Rhiannon Christine Ryan's National Provider Identifier (NPI) is 1184205668, issued on Apr 16, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Rhiannon Christine Ryan located?
The NPPES record lists a practice address at 9333 Genesee Ave, San Diego, CA, 92121. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.
How can I verify Rhiannon Christine Ryan's license?
NPPES lists California license number 20A22746, 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 Rhiannon Christine Ryan prescribe under Medicare Part D?
In 2024, Rhiannon Christine Ryan had 445 Medicare Part D claims for 93 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.