Patrick Chang, M.D.
NPI 1437231107 · Internal Medicine Physician · Great Neck, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Chang, M.D. is a Internal Medicine Physician provider in Great Neck, NY (NPI 1437231107).
Provider details
- NPI number
- 1437231107
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 222104 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,977 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 543 | $148 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 488 | $9 |
| 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 | 476 | $19 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 147 | $151 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 140 | $17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 471 | 144 |
| Amlodipine Besylate | 313 | 93 |
| Rosuvastatin Calcium | 264 | 79 |
| Losartan Potassium | 220 | 66 |
| Pantoprazole Sodium | 121 | 32 |
| Levothyroxine Sodium | 106 | 29 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-20
- Last updated
- 2009-12-03
Frequently asked questions
- What is Patrick Chang's NPI number?
- Patrick Chang's National Provider Identifier (NPI) is 1437231107, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Chang's specialty?
- Patrick Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Chang located?
- Patrick Chang's practice location on file with NPPES is 560 Northern Blvd, Great Neck, NY 11021-5100.
- What is Patrick Chang's phone number?
- The practice phone number listed in the NPPES registry for Patrick Chang is (516) 482-0600.
- Does Patrick Chang accept Medicare?
- Patrick Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Chang's NPI active?
- Yes — Patrick Chang's NPI (1437231107) is active in the NPPES registry as of the last update on 2009-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.