Yumei Chang, M.D.
NPI 1134381908 · Internal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yumei Chang, M.D. is a Internal Medicine Physician provider in New York, NY (NPI 1134381908).
Provider details
- NPI number
- 1134381908
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- MD463062 (PA)
Specialties & taxonomies
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
96 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 36 | $101 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 22 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $142 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 18 | $78 |
Typical Medicare-allowed amounts for these services range $9–$142 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 129 | 38 |
| Amlodipine Besylate | 59 | 21 |
| Amlodipine Besylate/Valsartanbrand: Amlodipine-Valsartan | 59 | — |
| Lisinopril | 52 | — |
| Gabapentin | 48 | — |
| Losartan Potassium | 48 | 12 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 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
Additional practice locations (1)
- 240 Greenwich StNew York, NY 10007-2163Phone: (310) 463-5771Fax: (212) 815-4910
Registry dates
- Enumerated
- 2008-07-01
- Last updated
- 2026-01-09
- Certified
- 2026-01-09
Frequently asked questions
- What is Yumei Chang's NPI number?
- Yumei Chang's National Provider Identifier (NPI) is 1134381908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yumei Chang's specialty?
- Yumei Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yumei Chang located?
- Yumei Chang's practice location on file with NPPES is 250 W 64th St, New York, NY 10023.
- What is Yumei Chang's phone number?
- The practice phone number listed in the NPPES registry for Yumei Chang is (212) 769-6300.
- Does Yumei Chang accept Medicare?
- Yumei Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yumei Chang's NPI active?
- Yes — Yumei Chang's NPI (1134381908) is active in the NPPES registry as of the last update on 2026-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.