Siddharth Iyengar, MD
Siddharth Iyengar, MD is a Medical Oncology Physician in San Diego, CA, registered under NPI 1003376187. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in San Diego, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 760 ft away at Arbor Parking Structure. The nearest transit stop is 696 ft away, served by Front St & Arbor Dr (UCSD). A pharmacy sits 0.49 mi from the entrance (Hillcrest Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.49 mi away.
Getting here and what is nearby
Transit 581 ft ~3 min
Transit Hillcrest Medical Center 606 ft ~3 min
Transit Front St & Arbor Dr (UCSD) 696 ft ~3 min
Parking 663 ft ~3 min
Parking First Avenue Parking Structure 695 ft ~3 min
Parking Arbor Parking Structure 760 ft ~3 min
Hotel Super 8 by Wyndham San Diego Hotel Circle 0.32 mi ~7 min
Hotel Days Inn San Diego Hotel Circle Near SeaWorld 0.33 mi ~7 min
Hotel Courtyard San Diego Mission Valley/Hotel Circle 0.34 mi ~7 min
Grocery lazy acres market 0.35 mi ~8 min
Restaurant Jack in the Box 0.36 mi ~8 min
Restaurant BunZ 0.36 mi ~8 min
475 Hotel Circle South, San Diego 92108
Mo-Sa 06:30-21:00, Su07:00-21:00
Restaurant Panda Express 0.38 mi ~8 min
120 Washington Street, San Diego 92103
Mo-Th 09:30-21:30; Fr 09:00-22:00; Sa 10:00-21:30; Su 09:30-21:30
Convenience Shell 0.40 mi ~9 min
Gas station Shell 0.41 mi ~9 min
Coffee Starbucks 0.43 mi ~9 min
Pharmacy CVS Pharmacy 0.43 mi ~9 min
Convenience Hills Wine and Spirits 0.44 mi ~9 min
Grocery Pavilions 0.44 mi ~9 min
Coffee Starbucks 0.46 mi ~10 min
784 West Washington Street, Mission Hills Commons 92103
Coffee Kona Coffee 0.49 mi ~10 min
Pharmacy Hillcrest Pharmacy 0.49 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 181976 | CA | Medical Oncology Physician primary |
| 11901347-1205 | UT | Internal Medicine Physician |
Licences are recorded in 2 states: CA, UT. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Hematology/oncology
- PAC ID
- 1456779917
- Enrollment ID
- I20251022003957
Medicare enrolment is recorded as approved under the provider type Practitioner - Hematology/oncology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: California and Utah. The practice address on file is in San Diego, CA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 181976
- Specialty
- Medical Oncology Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Medical Oncology covers
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer. NUCC Health Care Provider Taxonomy, code 207RX0202X
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 | |
|---|---|---|---|---|
| 207RX0202X | Medical Oncology Physician Medical Oncology | 181976 | CA | primary |
| 207R00000X | Internal Medicine Physician | 11901347-1205 | UT |
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 | 1003376187 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 23, 2019 |
| Last updated | Aug 4, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
200 W ARBOR DR San Diego, CA 92103 (800) 926-8273 Fax (888) 539-8781 |
| Mailing address |
FILE 57326 Los Angeles, CA 90074 |
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 | 0 | 0 | 3 | 3 | 7 | 6 | 1 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 7 | 3 | 1 | 7 |
Sum = 53 · next multiple of 10 = 60 · 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.