Yun Feng, M.D
NPI 1891957916 · Endocrinology, Diabetes & Metabolism Physician · New York, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yun Feng, M.D is a Endocrinology, Diabetes & Metabolism Physician provider in New York, NY (NPI 1891957916).
Provider details
- NPI number
- 1891957916
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- 254457 (NY)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
372 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 | 221 | $101 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 70 | $125 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 32 | $101 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 26 | $9 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 23 | $16 |
Typical Medicare-allowed amounts for these services range $9–$125 (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 · 138 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pioglitazone Hcl | 1,595 | 338 |
| Acarbose | 1,200 | 220 |
| Empagliflozinbrand: Jardiance | 918 | 204 |
| Glimepiride | 845 | 192 |
| Metformin Hcl | 763 | 174 |
| Semaglutidebrand: Rybelsus | 719 | 142 |
| Semaglutidebrand: Ozempic | 684 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,682 across 169 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
Registry dates
- Enumerated
- 2008-06-30
- Last updated
- 2024-01-28
- Certified
- 2024-01-28
Frequently asked questions
- What is Yun Feng's NPI number?
- Yun Feng's National Provider Identifier (NPI) is 1891957916, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yun Feng's specialty?
- Yun Feng is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Yun Feng located?
- Yun Feng's practice location on file with NPPES is 139 Centre St Ste 606, New York, NY 10013-4556.
- What is Yun Feng's phone number?
- The practice phone number listed in the NPPES registry for Yun Feng is (212) 226-1920.
- Does Yun Feng accept Medicare?
- Yun Feng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yun Feng's NPI active?
- Yes — Yun Feng's NPI (1891957916) is active in the NPPES registry as of the last update on 2024-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.