Dana Ann Ryan, DR.
Internal Medicine Physician · Alpine, CA
Dana Ann Ryan, DR. is an internal medicine physician with a practice address in Alpine, California, and NPI 1780609990, issued on Jul 12, 2006. Check the license (California A66830, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Dana Ann Ryan
- Credential
- DR.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A66830 CA
Self-reported in NPPES; status is on the state search - Practice location
- San Ysidro Health, Alpine, CA 91901
- Phone
- (619) 662-4100
- Enumerated
- Jul 12, 2006
- Record last updated
- Aug 15, 2025
- Fax
- (619) 320-3347
- Medicaid ID
- 00A668300 CA
- Medicare enrollment
- Enrolled (PECOS I20100629000640); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1997
- Entity
- Type 1 · individual
Verify Dana Ann Ryan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A66830Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average internal medicine physician in 2024
4,211 Medicare Part D claims for 313 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium437 claims
- Ozempic213 claims
- Metformin Hcl190 claims
- Losartan Potassium187 claims
- Lisinopril177 claims
- Amlodipine Besylate164 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 one group practice
- Centro DE Salud DE LA Comunidad DE San Ysidro, Inc.Alpine, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
4 internal medicine physician records list a practice address in Alpine
They are 4 of the 292 NPPES records with a practice address in Alpine, and 17,696 internal medicine physician records in California.
All 4 in Alpine → All 17,696 in California → Every provider in Alpine →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Dana Ann Ryan, DR.'s NPI number?
Dana Ann Ryan, DR.'s National Provider Identifier (NPI) is 1780609990, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dana Ann Ryan, DR. located?
The NPPES record lists a practice address at San Ysidro Health, Alpine, CA, 91901. Phone: (619) 662-4100. Providers update this record themselves, so call before visiting.
How can I verify Dana Ann Ryan, DR.'s license?
NPPES lists California license number A66830, 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 Dana Ann Ryan, DR. prescribe under Medicare Part D?
In 2024, Dana Ann Ryan, DR. had 4,211 Medicare Part D claims for 313 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.