Wei Feng, MD
NPI 1043277601 · Endocrinology, Diabetes & Metabolism Physician · South Pasadena, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wei Feng, MD is a Endocrinology, Diabetes & Metabolism Physician provider in South Pasadena, CA (NPI 1043277601).
Provider details
- NPI number
- 1043277601
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A51793 (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
20 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
1,390 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 956 | $141 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 138 | $16 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 126 | $183 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 77 | $104 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 58 | $101 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 87 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 506 | 111 |
| Empagliflozinbrand: Jardiance | 328 | 49 |
| Levothyroxine Sodiumbrand: Synthroid | 290 | 64 |
| Semaglutidebrand: Ozempic | 274 | 37 |
| Dapagliflozin Propanediolbrand: Farxiga | 264 | 46 |
| Metformin Hcl | 259 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,258 across 50 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)
- 1500 E Duarte RdDuarte, CA 91010Phone: (626) 359-8111
Registry dates
- Enumerated
- 2006-04-27
- Last updated
- 2020-12-11
- Certified
- 2020-12-11
Frequently asked questions
- What is Wei Feng's NPI number?
- Wei Feng's National Provider Identifier (NPI) is 1043277601, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wei Feng's specialty?
- Wei Feng is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Wei Feng located?
- Wei Feng's practice location on file with NPPES is 209 Fair Oaks Ave, South Pasadena, CA 91030-1814.
- What is Wei Feng's phone number?
- The practice phone number listed in the NPPES registry for Wei Feng is (626) 396-2900.
- Does Wei Feng accept Medicare?
- Wei Feng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wei Feng's NPI active?
- Yes — Wei Feng's NPI (1043277601) is active in the NPPES registry as of the last update on 2020-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.