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Edit this profileIlsong J. Chong, M.D. is a healthcare provider in Oceanside, CA specializing in geriatric medicine. Ilsong trained at University of Texas Medical School at Houston, graduating in 1992. Medicare claims data shows Ilsong provided 94 services to 62 patients. The services billed most often include hemoglobin a1c level and insertion of needle into vein for collection of blood sample. This provider record is associated with NPI 1831240159.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
605 CROUCH ST BLDG C
Oceanside, CA 92054
2410 Ella Blvd SUITE B
Houston, TX 77008
Within Geriatric Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
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94 services · 62 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
34 | Less often than most peers in Geriatric Medicine |
| Hemoglobin a1c level | Lab test | 83036 |
60 | As often as other peers in Geriatric Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Ilsong J. Chong is a geriatrician in Oceanside, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Geriatric Medicine”.
NPI registry
Ilsong J. Chong is listed at 605 Crouch St Bldg C, Oceanside, CA 92054. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (760) 736-6767. Contact the office directly to confirm availability and scheduling.
NPI registry
Ilsong J. Chong's National Provider Identifier is 1831240159. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Ilsong J. Chong attended University of Texas Medical School at Houston, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
Ilsong J. Chong has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Ilsong J. Chong performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Ilsong J. Chong. If this is you, claiming it is free.
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