ROGER JOSEPH MAH CORPORATION
ROGER JOSEPH MAH CORPORATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003259060, based in Santa Monica, CA. It is classified under Anesthesiology Physician.
Getting there
Here is what surrounds this office in Santa Monica, based on OpenStreetMap data collected Sep 1, 2026. Parking is available about 787 ft away. There is EV charging 0.26 mi from the office (Electrify America Santa Monica) — useful if you are driving in from out of town. The nearest transit stop is 615 ft away, served by Santa Monica & 20th. A pharmacy sits 0.20 mi from the entrance (Central Compounding Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.28 mi away.
Getting here and what is nearby
Transit Santa Monica & 22nd 377 ft ~2 min
Parking The Medical Centre of Santa Monica 349 ft ~2 min
Transit Santa Monica & 22nd 458 ft ~2 min
Pharmacy 2222 Pharmacy 565 ft ~3 min
Transit Santa Monica & 20th 615 ft ~3 min
Hotel The Ambrose 622 ft ~3 min
Parking 750 ft ~3 min
Parking 787 ft ~3 min
Coffee Tartine Santa Monica 824 ft ~4 min
Hotel Gateway Hotel Santa Monica 879 ft ~4 min
1920 Santa Monica Boulevard
Pharmacy SMC Pharmacy 996 ft ~4 min
1908 Santa Monica Boulevard
Pharmacy Central Compounding Pharmacy 0.20 mi ~5 min
Grocery Trader Joe's 0.20 mi ~4 min
2300 Wilshire Boulevard, Santa Monica 90404
Mo-Su 08:00-21:00
Restaurant Noma 0.21 mi ~5 min
Wilshire Boulevard
Restaurant Veggie Grill 0.21 mi ~5 min
2025B Wilshire Boulevard
Mo-Fr 10:30-23:00; Sa 11:00-23:00; Su 11:00-22:00
Restaurant Chipotle 0.21 mi ~5 min
Grocery Whole Foods Market 0.21 mi ~5 min
2201 Wilshire Boulevard, Santa Monica 90403
Mo-Su 07:00-22:00
Coffee goodboybob coffee 0.25 mi ~6 min
2058 Broadway, Santa Monica 90404
Mo-Su 07:00-17:00
EV charging Electrify America Santa Monica 0.26 mi ~6 min
Santa Monica Boulevard
Coffee Starbucks 0.28 mi ~6 min
2461 Santa Monica Boulevard, Santa Monica 90404
Mo-Su 05:00-20:00
Grocery Ralphs 0.40 mi ~9 min
1644 Cloverfield Boulevard, Santa Monica 90404
Mo-Su,PH 05:00-01:00
Convenience 7-Eleven 0.41 mi ~9 min
1600 Santa Monica Boulevard, Santa Monica 90404-1808
Gas station 76 0.42 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 |
|---|---|---|
| G77107 | CA | Anesthesiology Physician primary |
This provider holds licence G77107 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
- Part B Supplier - Clinic/group Practice
- PAC ID
- 3779937180
- Enrollment ID
- O20231003002381
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. 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 Anesthesiology covers
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery. NUCC Health Care Provider Taxonomy, code 207L00000X
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 | 1003259060 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 9, 2013 |
| Last updated | Apr 17, 2024 |
| Status | Active |
| Practice address |
2121 SANTA MONICA BLVD Santa Monica, CA 90404 (310) 829-5511 |
| Mailing address |
2476 OVERLAND AVE STE 201 Los Angeles, CA 90064 |
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 | 2 | 5 | 9 | 0 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 5 | 9 | 0 | 3 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.