Ahren Arase, M.D.
Family Medicine Physician · Porter Ranch, CA
Ahren Arase, M.D. is a family medicine physician with a practice address in Porter Ranch, California, and NPI 1417244930, issued on Jul 5, 2011. Check the license (California A131675, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ahren Arase
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A131675 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20000 Rinaldi St, Porter Ranch, CA 91326
- Phone
- (888) 515-3500
- Enumerated
- Jul 5, 2011
- Record last updated
- Apr 27, 2022
- Medicare enrollment
- Enrolled (PECOS I20150313001770); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2011
- Entity
- Type 1 · individual
Also registered at 20000 Rinaldi St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicholas Khasho, DOFamily Medicine Physician1316562127
- Wooshik Kim, PHARMDPharmacist1568016442
- Stephanie Lin, PHARMDPharmacist1487062717
- Nashlyne Ramos, DOFamily Medicine Physician1932762036
- Annie Song, PHARMDPharmacist1871965749
Verify Ahren Arase in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A131675Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% more Medicare Part D claims than the average family medicine physician in 2024
5,342 Medicare Part D claims for 793 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 121 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium499 claims
- Atorvastatin Calcium389 claims
- Losartan Potassium235 claims
- Amlodipine Besylate228 claims
- Lisinopril220 claims
- Omeprazole181 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
- Southern California Permanente Medical GroupPorter Ranch, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
15 family medicine physician records list a practice address in Porter Ranch
They are 15 of the 275 NPPES records with a practice address in Porter Ranch, and 17,133 family medicine physician records in California.
All 15 in Porter Ranch → All 17,133 in California → Every provider in Porter Ranch →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Ahren Arase, M.D.'s NPI number?
Ahren Arase, M.D.'s National Provider Identifier (NPI) is 1417244930, issued on Jul 5, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ahren Arase, M.D. located?
The NPPES record lists a practice address at 20000 Rinaldi St, Porter Ranch, CA, 91326. Phone: (888) 515-3500. Providers update this record themselves, so call before visiting.
How can I verify Ahren Arase, M.D.'s license?
NPPES lists California license number A131675, 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 Ahren Arase, M.D. prescribe under Medicare Part D?
In 2024, Ahren Arase, M.D. had 5,342 Medicare Part D claims for 793 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.