Patricia Ann Ahearn, M.D.
Internal Medicine Physician · San Juan Capistrano, CA
Patricia Ann Ahearn, M.D. is an internal medicine physician with a practice address in San Juan Capistrano, California, and NPI 1982655304, issued on May 12, 2006. Check the license (California G54979, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Patricia Ann Ahearn
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G54979 CA
Self-reported in NPPES; status is on the state search - Practice location
- 30230 Rancho Viejo RD, San Juan Capistrano, CA 92675
- Phone
- (949) 443-4303
- Enumerated
- May 12, 2006
- Record last updated
- Apr 16, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (949) 443-4033
- Medicare enrollment
- Enrolled (PECOS I20070510000398); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 1984
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 30230 Rancho Viejo RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Caruso, MSN, RN, FNP-BCFamily Nurse Practitioner1679816680
- William Chang, D.O.Pulmonary Disease Physician1417902149
- Yu-Hua Fang, M.D.Internal Medicine Physician1881647642
- William Gustin, MDHospitalist Physician1457431504
- Beverly Hendrickson, MDPediatrics Physician1306910906
- Rahul Kale, MDPulmonary Disease Physician1447330915
Verify Patricia Ann Ahearn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G54979Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average internal medicine physician in 2024
6,524 Medicare Part D claims for 417 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 350 claims were for opioids.
Most prescribed
- Levothyroxine Sodium297 claims
- Amlodipine Besylate236 claims
- Rosuvastatin Calcium215 claims
- Atorvastatin Calcium155 claims
- Gabapentin135 claims
- Lorazepam120 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.
Industry payments in 2024: $990.36
50 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Paloma Medical Group IncSan Juan Capistrano, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patricia Ann Ahearn among 17,696 internal medicine physician records in California
Patricia Ann Ahearn, M.D. is one of 17,696 internal medicine 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1984 · median 2004 among the 11,065 with a school on file
- Record last updated2013 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 internal medicine physician records list a practice address in San Juan Capistrano
They are 10 of the 676 NPPES records with a practice address in San Juan Capistrano, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Juan Capistrano → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bishen Bedi, MDSan Juan Capistrano, CA 926751538690284
- Gracia Covarrubias, MDSan Juan Capistrano, CA 926751730119751
- Yu-Hua Fang, M.D.San Juan Capistrano, CA 926751881647642
- Catherine McMillanSan Juan Capistrano, CA 926751114580222
- Thuytrang Nguyen, M.D.San Juan Capistrano, CA 926751861537656
- Deepa Oza, FNP-CSan Juan Capistrano, CA 926751336679323
- Audrey Rocco-Welch, MDSan Juan Capistrano, CA 926751770616716
- Jesus Valadez, MDSan Juan Capistrano, CA 926751144221839
Common questions
What is Patricia Ann Ahearn, M.D.'s NPI number?
Patricia Ann Ahearn, M.D.'s National Provider Identifier (NPI) is 1982655304, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Patricia Ann Ahearn, M.D. located?
The NPPES record lists a practice address at 30230 Rancho Viejo RD, San Juan Capistrano, CA, 92675. Phone: (949) 443-4303. Providers update this record themselves, so call before visiting.
How can I verify Patricia Ann Ahearn, M.D.'s license?
NPPES lists California license number G54979, 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 Patricia Ann Ahearn, M.D. prescribe under Medicare Part D?
In 2024, Patricia Ann Ahearn, M.D. had 6,524 Medicare Part D claims for 417 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.