NPPES file of Aug 9, 2026

Larry T. Halem, M.D.

Emergency Medicine Physician · Santa Monica, CA

Larry T. Halem, M.D. is an emergency medicine physician with a practice address in Santa Monica, California, and NPI 1568574937, issued on Aug 31, 2006. Check the license (California A89000, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1568574937
Name
Larry T. Halem
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A89000 CA
Self-reported in NPPES; status is on the state search
Practice location
1250 16TH St, Santa Monica, CA 90404
Phone
(310) 319-4000
Enumerated
Aug 31, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20050913001229); accepts Medicare assignment
Medical or professional school
Un Of California, Irvine, College Of Medicine, 2003
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1250 16TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Melanie Altamirano-CariagaNurse Practitioner1588060198
  2. Miguel Arellano, NPNurse Practitioner1295460806
  3. Jason Bahk, M.D.Hospitalist Physician1245573187
  4. Christopher BelfourEmergency Medicine Physician1518259837
  5. Umesh Bhagia, MDSurgery Physician1568468528
  6. Cassandra Blaylock, NPHematology & Oncology Physician1588043400

Verify Larry T. Halem in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A89000
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.9 times the Medicare Part D claims of the average emergency medicine physician in 2024

875 Medicare Part D claims for 389 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 52 claims were for opioids.

  1. Larry Halem875
  2. Specialty average226

Most prescribed

  1. Ibuprofen141 claims
  2. Ondansetron Odt118 claims
  3. Cyclobenzaprine Hcl75 claims
  4. Cephalexin74 claims
  5. Albuterol Sulfate Hfa54 claims
  6. Hydrocodone-Acetaminophen48 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score95.7
  2. Costout of 100 · 30%81.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Capital Hospitalist Medical Group IncLos Angeles, CA
  2. Vep Mlk Emergency Medical Group IncLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Larry T. Halem among 7,751 emergency medicine physician records in California

Larry T. Halem, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2003 · median 2011 among the 4,560 with a school on file
  • Record last updated2007 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Isaac Bash, MDSanta Monica, CA 904041619934643
  2. Victor Candioty, MDSanta Monica, CA 904041437116472
  3. Michelle Charfen, M.D.Santa Monica, CA 904041588602486
  4. Edward Cotner, MDSanta Monica, CA 904041023074044
  5. Patricia Drum-Lal, PACSanta Monica, CA 904041639136674
  6. Walid Ghurabi, D.O.Santa Monica, CA 904041073566931
  7. Daniel Grossman, MDSanta Monica, CA 904041386601326
  8. Amy Kijner, PASanta Monica, CA 904041235197849

Common questions

What is Larry T. Halem, M.D.'s NPI number?

Larry T. Halem, M.D.'s National Provider Identifier (NPI) is 1568574937, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Larry T. Halem, M.D. located?

The NPPES record lists a practice address at 1250 16TH St, Santa Monica, CA, 90404. Phone: (310) 319-4000. Providers update this record themselves, so call before visiting.

How can I verify Larry T. Halem, M.D.'s license?

NPPES lists California license number A89000, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Larry T. Halem, M.D. prescribe under Medicare Part D?

In 2024, Larry T. Halem, M.D. had 875 Medicare Part D claims for 389 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Larry T. Halem, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.