Jonathan Semaan, DO
Internal Medicine Physician · San Ysidro, CA
Jonathan Semaan, DO is an internal medicine physician with a practice address in San Ysidro, California, and NPI 1225722598, issued on Jun 7, 2023. Check the license (California 2955, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jonathan Semaan
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2955 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4004 Beyer Blvd, San Ysidro, CA 92173
- Phone
- (619) 662-4100
- Enumerated
- Jun 7, 2023
- Record last updated
- Mar 14, 2026
- Fax
- (619) 662-4100
- Medicare enrollment
- Enrolled (PECOS I20260424002322); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4004 Beyer Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Salvador Balvaneda, IMFTMarriage & Family Therapist1659413086
- Vanessa Bastidas, MD, MPHFamily Medicine Physician1831893478
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- Justin Bennink, M.D.Family Medicine Physician1083033146
Verify Jonathan Semaan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 2955Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
180 Medicare Part D claims for 31 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Tamsulosin Hcl20 claims
- Atorvastatin Calcium18 claims
- Gabapentin14 claims
- Levothyroxine Sodium13 claims
- Amlodipine Besylate12 claims
- Metformin Hcl11 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: $247.86
2 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Jonathan Semaan among 17,696 internal medicine physician records in California
Jonathan Semaan, DO 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 2023, is newer than 98% of them.
- NPI issued2023 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2023 · median 2004 among the 11,065 with a school on file
- Record last updated2026 · 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).
8 internal medicine physician records list a practice address in San Ysidro
They are 8 of the 218 NPPES records with a practice address in San Ysidro, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Ysidro → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Carlos Carriedo, DOSan Ysidro, CA 921731174217434
- Martin Consunji, MDSan Ysidro, CA 921731033746029
- Alberto Godinez, MDSan Diego, CA 921731821739871
- Michele Lamantia, MDSan Ysidro, CA 921731124176102
- Ikramah LatifSan Diego, CA 921731407437650
- Sonia Mathew, MDSan Diego, CA 921731376284562
- Chatrathip Nasongkla, DOSan Diego, CA 921731639799760
- Ryan PascuaSan Ysidro, CA 921731972064269
Common questions
What is Jonathan Semaan, DO's NPI number?
Jonathan Semaan, DO's National Provider Identifier (NPI) is 1225722598, issued on Jun 7, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Semaan, DO located?
The NPPES record lists a practice address at 4004 Beyer Blvd, San Ysidro, CA, 92173. Phone: (619) 662-4100. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Semaan, DO's license?
NPPES lists California license number 2955, 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 Jonathan Semaan, DO prescribe under Medicare Part D?
In 2024, Jonathan Semaan, DO had 180 Medicare Part D claims for 31 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.