Isaac Bash, MD
NPI 1619934643 · Emergency Medicine Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isaac Bash, MD is a Emergency Medicine Physician provider in Santa Monica, CA (NPI 1619934643).
Provider details
- NPI number
- 1619934643
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A62981 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,080 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 359 | $9 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 355 | $186 |
| Critical Care, First 30-74 Minutes99291 | 176 | $230 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 175 | $129 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 15 | $75 |
Typical Medicare-allowed amounts for these services range $9–$230 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 53 | 52 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 38 | 36 |
| Ibuprofen | 37 | 36 |
| Cephalexin | 32 | 32 |
| Prednisone | 20 | 19 |
| Tramadol Hcl | 19 | 19 |
| Dicyclomine Hcl | 19 | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-26
- Last updated
- 2010-12-08
Frequently asked questions
- What is Isaac Bash's NPI number?
- Isaac Bash's National Provider Identifier (NPI) is 1619934643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Bash's specialty?
- Isaac Bash is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Isaac Bash located?
- Isaac Bash's practice location on file with NPPES is 2121 Santa Monica Blvd, Santa Monica, CA 90404.
- What is Isaac Bash's phone number?
- The practice phone number listed in the NPPES registry for Isaac Bash is (310) 582-7089.
- Does Isaac Bash accept Medicare?
- Isaac Bash is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isaac Bash's NPI active?
- Yes — Isaac Bash's NPI (1619934643) is active in the NPPES registry as of the last update on 2010-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.