Alonso Benjamin Chan, PA-C
Physician Assistant · Chula Vista, CA
Alonso Benjamin Chan, PA-C is a physician assistant with a practice address in Chula Vista, California, and NPI 1831525286, issued on Sep 17, 2013. Check the license (California 23195, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alonso Benjamin Chan
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 23195 CA
Self-reported in NPPES; status is on the state search - Practice location
- 299 J St, Chula Vista, CA 91910
- Phone
- (858) 554-1212
- Enumerated
- Sep 17, 2013
- Record last updated
- May 21, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180112001398); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 299 J St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Uri Guefen, M.D.General Practice Physician1275646333
- Eladio Martinez, MDFamily Medicine Physician1033734520
- Alejandra Vazquez-BojorquezFamily Medicine Physician1447817671
Verify Alonso Benjamin Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 23195Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.0 times the Medicare Part D claims of the average physician assistant in 2024
4,123 Medicare Part D claims for 266 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 46 claims were for opioids.
Most prescribed
- Atorvastatin Calcium270 claims
- Losartan Potassium155 claims
- Lisinopril152 claims
- Metformin Hcl127 claims
- Levothyroxine Sodium119 claims
- Ibuprofen103 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: $421.30
19 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 64,719 providers of this specialty with any payment received $841.65 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
- Monica Perlman MD IncChula Vista, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alonso Benjamin Chan among 14,451 physician assistant records in California
Alonso Benjamin Chan, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 35% of them.
- NPI issued2013 · 35% of these records are older, 62% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2012 · median 2018 among the 7,214 with a school on file
- Record last updated2019 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
57 physician assistant records list a practice address in Chula Vista
They are 57 of the 5,329 NPPES records with a practice address in Chula Vista, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Chula Vista → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Arthur Corpus, P.A.Chula Vista, CA 919101366451627
- Moreno David, P.A.Chula Vista, CA 919101588673842
- Priscilla Inda, PA-CChula Vista, CA 919101679008379
- Raquel Knutson, MMS, PA-CChula Vista, CA 919101114352747
- Robert Paul, PAChula Vista, CA 919101972811412
- Dolly Ricafort, PA-CChula Vista, CA 919101831231034
- Jenelle Robinson, PA-CChula Vista, CA 919101689986168
- Joseph Ryan, PA-CChula Vista, CA 919101619015401
Common questions
What is Alonso Benjamin Chan, PA-C's NPI number?
Alonso Benjamin Chan, PA-C's National Provider Identifier (NPI) is 1831525286, issued on Sep 17, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Alonso Benjamin Chan, PA-C located?
The NPPES record lists a practice address at 299 J St, Chula Vista, CA, 91910. Phone: (858) 554-1212. Providers update this record themselves, so call before visiting.
How can I verify Alonso Benjamin Chan, PA-C's license?
NPPES lists California license number 23195, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Alonso Benjamin Chan, PA-C prescribe under Medicare Part D?
In 2024, Alonso Benjamin Chan, PA-C had 4,123 Medicare Part D claims for 266 beneficiaries; the average among physician assistant prescribers was 830. 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.