NPPES file of Aug 9, 2026

Derrick R. Darnsteadt, MD

Emergency Medicine Physician · Los Angeles, CA

Derrick R. Darnsteadt, MD is an emergency medicine physician with a practice address in Los Angeles, California, and NPI 1497725758, issued on Jan 26, 2006. Check the license (California A92752, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497725758
Name
Derrick R. Darnsteadt
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
A92752 CA
MD.30306 AL
Self-reported in NPPES; status is on the state search
Practice location
11301 Wilshire Blvd, Los Angeles, CA 90073
Phone
(310) 268-3711
Enumerated
Jan 26, 2006
Record last updated
Apr 26, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicaid IDs
122003 AL
128507 AL
Medicare enrollment
Enrolled (PECOS I20140514001773); accepts Medicare assignment
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 11301 Wilshire Blvd

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

  1. Frances Abad, FNPFamily Nurse Practitioner1053504514
  2. Oluwakemi AbayomiPsychiatric/Mental Health Nurse Practitioner1598508913
  3. Vanessa AbcedeSocial Worker1306584495
  4. Maren Abromowitz, FNP-BCFamily Nurse Practitioner1356950919
  5. Nayiri Adessian, MS, CCC-SLPSpeech-Language Pathologist1326761420
  6. Farzad AdibStudent in an Organized Health Care Education/Training Program1558745869

Verify Derrick R. Darnsteadt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A92752
    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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90% fewer Medicare Part D claims than the average emergency medicine physician in 2024

23 Medicare Part D claims for 13 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Derrick Darnsteadt23
  2. Specialty average226

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.

Bills Medicare through one group practice

  1. Ridgeline Emergency Physicians Medical Group, Inc.Northridge, CA

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

Derrick R. Darnsteadt among 7,751 emergency medicine physician records in California

Derrick R. Darnsteadt, MD 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
  • Graduated2004 · median 2011 among the 4,560 with a school on file
  • Record last updated2017 · 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. Zahir Basrai, M.D.Los Angeles, CA 900731760617112
  2. Andrew Grock, MDLos Angeles, CA 900731285922310
  3. Jonie Hsiao, M.D.Los Angeles, CA 900731033316195
  4. Scott Jacobs, M.D.Los Angeles, CA 900731265483226
  5. Joshua Mechanic, M.D.Los Angeles, CA 900731447413992
  6. Kian Preston-Suni, MD, MPHLos Angeles, CA 900731194163345
  7. Tina Wu, M.D., M.B.A.Los Angeles, CA 900731356667117
  8. Kathleen Yip, MDLos Angeles, CA 900731558743518

Common questions

What is Derrick R. Darnsteadt, MD's NPI number?

Derrick R. Darnsteadt, MD's National Provider Identifier (NPI) is 1497725758, issued on Jan 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Derrick R. Darnsteadt, MD located?

The NPPES record lists a practice address at 11301 Wilshire Blvd, Los Angeles, CA, 90073. Phone: (310) 268-3711. Providers update this record themselves, so call before visiting.

How can I verify Derrick R. Darnsteadt, MD's license?

NPPES lists California license number A92752, 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 Derrick R. Darnsteadt, MD prescribe under Medicare Part D?

In 2024, Derrick R. Darnsteadt, MD had 23 Medicare Part D claims for 13 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

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.