Judy Chang, M.D.
NPI 1740508720 · Anesthesiology Physician · New York, NY
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Judy Chang, M.D. is a Anesthesiology Physician provider in New York, NY (NPI 1740508720).
Provider details
- NPI number
- 1740508720
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A141691 (CA)
Specialties & taxonomies
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
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
194 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) |
|---|---|---|
| Anesthesia for Lens Surgery00142 | 66 | $139 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 47 | $132 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 22 | $139 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 19 | $169 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 17 | $104 |
| Anesthesia for Other Repair of Lower Abdomen Hernia (1 Year Or Older)00830 | 12 | $230 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,250 across 1 record (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
Registry dates
- Enumerated
- 2010-05-14
- Last updated
- 2016-08-20
Frequently asked questions
- What is Judy Chang's NPI number?
- Judy Chang's National Provider Identifier (NPI) is 1740508720, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Judy Chang's specialty?
- Judy Chang is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Judy Chang located?
- Judy Chang's practice location on file with NPPES is 550 1st Ave, New York, NY 10016-6402.
- What is Judy Chang's phone number?
- The practice phone number listed in the NPPES registry for Judy Chang is (212) 263-5506.
- Does Judy Chang accept Medicare?
- Judy Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Judy Chang's NPI active?
- Yes — Judy Chang's NPI (1740508720) is active in the NPPES registry as of the last update on 2016-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.