Rabab Hajar, M.D
Rabab Hajar, M.D is a Gastroenterology Physician in San Luis Obispo, CA, registered under NPI 1003103805. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in San Luis Obispo, based on OpenStreetMap data collected Sep 5, 2026. Parking is available about 162 ft away. The nearest transit stop is 916 ft away, served by Santa Rosa & Murray. A pharmacy sits 0.21 mi from the entrance (Rite Aid), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.30 mi away.
Getting here and what is nearby
Parking 77 ft ~1 min
Parking 120 ft ~1 min
Parking 162 ft ~1 min
Transit Foothill at Casa (EB) 192 ft ~1 min
Transit Foothill at Casa (WB) 240 ft ~1 min
Restaurant Taqueria San Miguel 713 ft ~3 min
Gas station Shell 817 ft ~4 min
Transit Santa Rosa & Murray 916 ft ~4 min
Gas station Chevron 919 ft ~4 min
Restaurant Kona's Deli 983 ft ~4 min
Pharmacy Rite Aid 0.21 mi ~5 min
Restaurant G Brothers Smokehouse 0.22 mi ~5 min
885 Foothill Boulevard, San Luis Obispo 93405
Mo-Su 07:30-21:00
Coffee Scout Coffee 0.25 mi ~5 min
880 Foothill Boulevard, San Luis Obispo 93405
Sa 07:30-16:30; Su-Fr 07:30-14:30
Grocery Lassens Natural Foods & Vitamins 0.26 mi ~6 min
Coffee Milk In It 0.29 mi ~6 min
858 Foothill Boulevard, San Luis Obispo 93405
Mo-Su 12:00-22:00
Coffee Starbucks 0.30 mi ~7 min
Gas station Conserv Fuel 0.33 mi ~7 min
Convenience 7-Eleven 0.34 mi ~7 min
552 California Boulevard, San Luis Obispo 93405-1905
Grocery California Fresh Market 0.42 mi ~9 min
Hotel San Luis Inn and Suites 0.44 mi ~9 min
404 Santa Rosa
Hotel Olive Tree Inn 0.45 mi ~9 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 |
|---|---|---|
| A133570 | CA | Gastroenterology Physician primary |
This provider holds licence A133570 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Gastroenterology
- PAC ID
- 2961702691
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| California | I20151201002347 | Practitioner - Gastroenterology |
| New Mexico | I20250414000393 | Practitioner - Gastroenterology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Gastroenterology. There are 2 separate enrolment records across 2 states (CA, NM). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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.
What Gastroenterology covers
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs. NUCC Health Care Provider Taxonomy, code 207RG0100X
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 | 1003103805 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 30, 2011 |
| Last updated | May 14, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | M.D |
| Practice address |
35 CASA ST STE 130 San Luis Obispo, CA 93405 (805) 541-1422 Fax (805) 595-1815 |
| Other names |
Rabab Hajar Doing Business As |
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 | 1 | 0 | 3 | 8 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 0 | 6 | 8 | 0 |
Sum = 45 · next multiple of 10 = 50 · check digit = 5 · actual last digit = 5
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.