HAMMAD O KHAN, MD, INC.
HAMMAD O KHAN, MD, INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1679908404, based in Upland, CA. It is classified under Interventional Cardiology Physician.
Getting there
The practice address on file is 685 N 13TH AVE STE #11, Upland, CA 91786. 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 |
|---|---|---|
| A92889 | CA | Interventional Cardiology Physician primary |
This provider holds licence A92889 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 Interventional Cardiology covers
An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system. NUCC Health Care Provider Taxonomy, code 207RI0011X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1679908404 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Sep 11, 2013 |
| Last updated | Sep 10, 2015 |
| Status | Active |
| Practice address |
685 N 13TH AVE STE #11 Upland, CA 91786 (909) 285-6717 Fax (909) 946-8700 |
| Mailing address |
8816 FOOTHILL BLVD STE 103-205 Rancho Cucamonga, CA 91730 |
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 | 6 | 7 | 9 | 9 | 0 | 8 | 4 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 5 | 9 | 9 | 0 | 7 | 4 | 0 |
Sum = 66 · next multiple of 10 = 70 · check digit = 4 · actual last digit = 4
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.