Daniel Piening, MD
Emergency Medicine Physician · Arcadia, CA
Daniel Piening, MD is an emergency medicine physician with a practice address in Arcadia, California, and NPI 1003377946, issued on Mar 25, 2019. Check the license (California A184666, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel Piening
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- A184666 CA
D93408 MD
Self-reported in NPPES; status is on the state search - Practice location
- 300 W Huntington Dr, Arcadia, CA 91007
- Phone
- (626) 898-8000
- Enumerated
- Mar 25, 2019
- Record last updated
- Oct 14, 2023
- Medicare enrollment
- Enrolled (PECOS I20230706001127); accepts Medicare assignment
- Medical or professional school
- Emory University School Of Medicine, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 300 W Huntington Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine Agron, NPFamily Nurse Practitioner1538685334
- Raha Akhavan, M.D.Anesthesiology Physician1477577351
- Vincent Antosz, MDInternal Medicine Physician1831150135
- Loren Ayres, M.D.Anatomic Pathology & Clinical Pathology Physician1184693301
- Apryl Jann Bacalso, PTPhysical Therapist1124525340
- Rahtna Banerjee, M.D.Anesthesiology Physician1033430855
Verify Daniel Piening in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A184666Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average emergency medicine physician in 2024
130 Medicare Part D claims for 103 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Cephalexin23 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.
Bills Medicare through one group practice
- Usc Care Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Piening among 7,751 emergency medicine physician records in California
Daniel Piening, 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2019 · median 2011 among the 4,560 with a school on file
- Record last updated2023 · 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.
All 7,751 in California → Every provider in Arcadia → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Charmaine Bobo, M.D.Arcadia, CA 910071366478117
- Rebecca Boyer, MDArcadia, CA 910071235691999
- James Burke, M.D.Arcadia, CA 910071285675454
- Mayra CruzArcadia, CA 910071134623085
- Steven Goldberg, MDArcadia, CA 910071760426464
- Daniel Houssiere, DOArcadia, CA 910071245355759
- Daniel IchwanArcadia, CA 910071740711589
- Benjamin Lee, M.D.Arcadia, CA 910071457387532
Common questions
What is Daniel Piening, MD's NPI number?
Daniel Piening, MD's National Provider Identifier (NPI) is 1003377946, issued on Mar 25, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Piening, MD located?
The NPPES record lists a practice address at 300 W Huntington Dr, Arcadia, CA, 91007. Phone: (626) 898-8000. Providers update this record themselves, so call before visiting.
How can I verify Daniel Piening, MD's license?
NPPES lists California license number A184666, 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 Daniel Piening, MD prescribe under Medicare Part D?
In 2024, Daniel Piening, MD had 130 Medicare Part D claims for 103 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.