Grace Chung, M.D.
NPI 1679735724 · Internal Medicine Physician · Stony Brook, NY
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Chung, M.D. is a Internal Medicine Physician provider in Stony Brook, NY (NPI 1679735724).
Provider details
- NPI number
- 1679735724
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 273197-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,631 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 1,228 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,113 | $149 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 762 | $19 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 370 | $233 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision and Review By Physician93015 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 311 | 110 |
| Metoprolol Succinate | 300 | 106 |
| Amlodipine Besylate | 250 | 90 |
| Rosuvastatin Calcium | 198 | 76 |
| Apixabanbrand: Eliquis | 148 | 51 |
| Losartan Potassium | 131 | 47 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 220 Bellemeade RdSuite aEast Setauket, NY 11733-3523Phone: (631) 941-2273Fax: (631) 941-2501
Registry dates
- Enumerated
- 2008-06-30
- Last updated
- 2022-05-02
- Certified
- 2022-05-02
Frequently asked questions
- What is Grace Chung's NPI number?
- Grace Chung's National Provider Identifier (NPI) is 1679735724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Chung's specialty?
- Grace Chung is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Chung located?
- Grace Chung's practice location on file with NPPES is 1320 Stony Brook Road, Stony Brook, NY 11790.
- What is Grace Chung's phone number?
- The practice phone number listed in the NPPES registry for Grace Chung is (631) 941-2273.
- Does Grace Chung accept Medicare?
- Grace Chung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Chung's NPI active?
- Yes — Grace Chung's NPI (1679735724) is active in the NPPES registry as of the last update on 2022-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.