Ellen Fung, PHD, RD
Ellen Fung, PHD, RD is a provider specialising in Bone Densitometry Radiologic Technologist in Oakland, CA, registered under NPI 1881810927. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 5700 MARTIN LUTHER KING JR WAY HEDCO HEALTH SCIENCE CENTER, Oakland, CA 94609. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 836890 | CA | Registered Dietitian |
| RHP81470 | CA | Bone Densitometry Radiologic Technologist primary |
This provider holds licence 836890 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Bone Densitometry covers
A radiologic technologist who specializes in bone densitometry and is appropriately educated and trained, consistent with nationally recognized standards, state statute, and facility policy, in performance of bone density imaging, exam techniques, equipment protocols, radiation safety, and patient care. NUCC Health Care Provider Taxonomy, code 2471B0102X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 133V00000X | Registered Dietitian | 836890 | CA | |
| 2471B0102X | Bone Densitometry Radiologic Technologist Bone Densitometry | RHP81470 | CA | primary |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1881810927 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 17, 2007 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | PHD, RD |
| Practice address |
5700 MARTIN LUTHER KING JR WAY HEDCO HEALTH SCIENCE CENTER Oakland, CA 94609 (510) 428-3885 Fax (510) 450-5877 |
| Mailing address |
6618 DOVER ST Oakland, CA 94609 |
| Other names |
Ellen Biehl Former Legal Business Name |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 8 | 1 | 8 | 1 | 0 | 9 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 7 | 1 | 7 | 1 | 0 | 9 | 4 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.