Are you Derek G. Chung, M.D? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileDerek G. Chung, M.D is a healthcare provider in Brooklyn, NY specializing in internal medicine. Medicare claims data shows Derek provided 182 services to 131 patients. The services billed most often include established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more, annual alcohol misuse screening, 5 to 15 minutes, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1588747935.
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.
2244 CHURCH AVE FL 3
Brooklyn, NY 11226
Within Internal 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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182 services · 131 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
84 | More often than most peers in Internal Medicine |
| Annual alcohol misuse screening, 5 to 15 minutes | Billing code | G0442 |
23 | Less often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
23 | Less often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
22 | Less often than most peers in Internal Medicine |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
16 | Less often than most peers in Internal Medicine |
| Face-to-face behavioral counseling for obesity, 15 minutes | Billing code | G0447 |
14 | Less often than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Derek G. Chung is an internist in Brooklyn, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Derek G. Chung is listed at 2244 Church Ave Fl 3, Brooklyn, NY 11226. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (718) 352-0083. Contact the office directly to confirm availability and scheduling.
NPI registry
Derek G. Chung's National Provider Identifier is 1588747935. 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
Derek G. Chung attended Other, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
Derek G. Chung has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Derek G. Chung the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. 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 Derek G. Chung. If this is you, claiming it is free.
Guide.md
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