Enrica Mang Ka Fung, MD
NPI 1437338951ActiveIndividual· Internal Medicine, Nephrology· Stanford, CA
Internal Medicine, Nephrology (MD) with Stanford Health Care, practicing in Stanford, California. 326 Medicare patients in 2024, $89,010 paid; nearly all of their 265 Part D prescriptions were generic (91%). Merck Sharp & Dohme LLC was the largest of 3 companies reporting payments in 2024, $1,013 in all, mostly consulting fees. Lists Stanford Health Care and 1 other hospital as hospital affiliations.
Overview
| NPI | 1437338951 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 31, 2007 |
| Last updated in NPPES | Apr 18, 2024 |
| Certified by provider | Apr 18, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A114390 | CA |
| Internal Medicine | 207R00000X | A114390 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 326 |
|---|---|
| Services billed | 1,014 across 21 procedure codes |
| Paid by Medicare | $89,010 |
Part D prescriptions in 2024
| Prescriptions (claims) | 265 · 518 30-day fills |
|---|---|
| Patients | 55 |
| Total drug cost | $24,131 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Stanford Health CareStanford, CA
- Stanford Health Care Tri-ValleyPleasanton, CA
Other facilities
- Shc East San JoseDialysis facility · San Jose, CA
- Shc MilpitasDialysis facility · Milpitas, CA
Industry payments (Open Payments)
- 2024$1,013 · 3 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $750.00 | 1 |
| Mallinckrodt Hospital Products Inc. | $143.68 | 1 |
| Amgen Inc. | $119.76 | 1 |
What the 2024 payments were for
- Consulting Fee$750.00 · 1 payment
- Food and Beverage$263.44 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Stanford
- 1104117407
- 1154579969
- 1316408479
- 1356505317
- 1356755532
- 1407823875
- 1437166592
- 1497752802
- 1538600952
- 1548604853
- 1558656231
- 1730118738
All 41 nephrologists in Stanford · All nephrologists in California