DR. WEI FENG (MD) – Endocrinology, Diabetes & Metabolism Physician, NPI 1043277601
Endocrinology, Diabetes & Metabolism Physician
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Profile Insights
NPPES metrics only — not quality of care.
950 ENDOCRINOLOGY in CA
Provider Addresses for DR. WEI FENG (MD)
1500 E Duarte Rd
Duarte, CA 91010
Phone: (626) 359-8111
Type: Location
Box, Lago del Salado, Los Angeles, San Nicolás de los Garza, Nuevo León, 66477, Mexico
LOS ANGELES, CA 900510185
Phone: (626) 775-3514
Fax: (626) 218-5310
Type: Mailing
209, Fair Oaks Avenue, Raymond Hill, South Pasadena, Los Angeles County, California, 91030, United States
SOUTH PASADENA, CA 910301814
Phone: (626) 396-2900
Fax: (626) 799-2889
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 123 Open Payments records for all available years, with a total value of $2,867.
Total Amount is formed as General ($2,867) + Research ($0) + Ownership ($0) = $2,867.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Abbott Laboratories ($541).
Total Amount
$2,867
General + Research + Ownership
Payments
123
Total payment records
General Amount
$2,867
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $541 |
| Mannkind Corporation | $390 |
| Corcept Therapeutics | $307 |
| Bayer Healthcare Pharmaceuticals Inc. | $236 |
| Novo Nordisk Inc | $230 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-08-02
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040802000810 | I | Endocrinology | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J0897 | Injection, denosumab, 1 mg | 6,240 | 63 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,093 | 530 | $0 |
| 96372 | Injection of drug or substance under skin or into muscle | 136 | 70 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 94 | 94 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 60 | 50 | $0 |
Insurance plans in this area (ZIP 91010)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| E N D O C R I N O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| Diagnostic Radiology | CA | |
| Radiation Oncology | OH | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| Physician Assistant | NY | |
| - | CA | |
| Infectious Disease | CA | |
| Hematology/Oncology, Pediatric Medicine | CA |
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