Frank Y. An, MD
Family Medicine Physician · Lomita, CA
Frank Y. An, MD is a family medicine physician with a practice address in Lomita, California, and NPI 1558345843, issued on Dec 1, 2005. Check the license (California G62295, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Frank Y. An
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G62295 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25043 Narbonne Ave, Lomita, CA 90717
- Phone
- (310) 373-8120
- Enumerated
- Dec 1, 2005
- Record last updated
- Jun 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (424) 203-8980
- Entity
- Type 1 · individual
Also registered at 25043 Narbonne Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marina Raikhel, MDFamily Medicine Physician1073792446
- Kristin Shimazaki, PA-CMedical Physician Assistant1306358882
Verify Frank Y. An in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G62295Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average family medicine physician in 2024
733 Medicare Part D claims for 110 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Losartan Potassium41 claims
- Atorvastatin Calcium40 claims
- Amlodipine Besylate31 claims
- Gabapentin31 claims
- Tramadol Hcl27 claims
- Azithromycin22 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: $1,899.55
18 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 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.
3 family medicine physician records list a practice address in Lomita
They are 3 of the 230 NPPES records with a practice address in Lomita, and 17,133 family medicine physician records in California.
All 3 in Lomita → All 17,133 in California → Every provider in Lomita →
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 Frank Y. An, MD's NPI number?
Frank Y. An, MD's National Provider Identifier (NPI) is 1558345843, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Frank Y. An, MD located?
The NPPES record lists a practice address at 25043 Narbonne Ave, Lomita, CA, 90717. Phone: (310) 373-8120. Providers update this record themselves, so call before visiting.
How can I verify Frank Y. An, MD's license?
NPPES lists California license number G62295, 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 Frank Y. An, MD prescribe under Medicare Part D?
In 2024, Frank Y. An, MD had 733 Medicare Part D claims for 110 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.