Larry Halem, M.D.
NPI 1568574937 · Emergency Medicine Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Larry Halem, M.D. is a Emergency Medicine Physician provider in Santa Monica, CA (NPI 1568574937).
Provider details
- NPI number
- 1568574937
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A89000 (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
19 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
659 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 296 | $179 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 182 | $124 |
| Critical Care, First 30-74 Minutes99291 | 109 | $221 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 43 | $73 |
| Smoking and Tobacco Use Intensive Counseling, 4-10 Minutes99406 | 16 | $12 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 13 | $120 |
Typical Medicare-allowed amounts for these services range $12–$221 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ibuprofen | 141 | 135 |
| Ondansetronbrand: Ondansetron Odt | 118 | 114 |
| Cyclobenzaprine Hcl | 75 | 72 |
| Cephalexin | 74 | 73 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 54 | 53 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 48 | 44 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Larry Halem's NPI number?
- Larry Halem's National Provider Identifier (NPI) is 1568574937, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Halem's specialty?
- Larry Halem is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Larry Halem located?
- Larry Halem's practice location on file with NPPES is 1250 16th St, Santa Monica, CA 90404-1249.
- What is Larry Halem's phone number?
- The practice phone number listed in the NPPES registry for Larry Halem is (310) 319-4000.
- Does Larry Halem accept Medicare?
- Larry Halem is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Larry Halem's NPI active?
- Yes — Larry Halem's NPI (1568574937) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.