Mary Armbruster, DO
Emergency Medicine Physician · Palm Springs, CA
Mary Armbruster, DO is an emergency medicine physician with a practice address in Palm Springs, California, and NPI 1083300958, issued on Apr 13, 2023. Check the license (California 20A23376, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary Armbruster
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 20A23376 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1150 N Palm Canyon Dr, Palm Springs, CA 92262
- Phone
- (760) 416-4568
- Enumerated
- Apr 13, 2023
- Record last updated
- Mar 10, 2026
- Medicare enrollment
- Enrolled (PECOS I20260424001795); may accept Medicare assignment
- Medical or professional school
- Rocky Vista University College Of Osteopathic Med, 2023
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1150 N Palm Canyon Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Abraham, DOStudent in an Organized Health Care Education/Training Program1881536308
- Ahmad Abuaisheh, MDStudent in an Organized Health Care Education/Training Program1871335950
- Sara Aghabaklou, MDStudent in an Organized Health Care Education/Training Program1063200566
- Amneh AlsalehStudent in an Organized Health Care Education/Training Program1720820756
- Claudia Alvarez, MDStudent in an Organized Health Care Education/Training Program1932953726
- Sabrina Alvarez-Hernandez, MDStudent in an Organized Health Care Education/Training Program1881480465
Verify Mary Armbruster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A23376Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average emergency medicine physician in 2024
113 Medicare Part D claims for 86 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin20 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.
Mary Armbruster among 7,751 emergency medicine physician records in California
Mary Armbruster, DO 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 2023, is newer than 98% of them.
- NPI issued2023 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2023 · median 2011 among the 4,560 with a school on file
- Record last updated2026 · 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).
63 emergency medicine physician records list a practice address in Palm Springs
They are 63 of the 1,917 NPPES records with a practice address in Palm Springs, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Palm Springs → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Brian Anderson, M.DPalm Springs, CA 922621396788469
- Ronald Buss, M.DPalm Springs, CA 922621114960283
- Peter Chu, MDPalm Springs, CA 922621396788014
- Howard CohenPalm Springs, CA 922621255462255
- Jeffery Davies, D.O.Palm Springs, CA 922621013928589
- Alan Fleckner, M.DPalm Springs, CA 922621891738431
- Anthony Ghidorzi, D.O.Palm Springs, CA 922621427163187
- Mark Hoffman, M.DPalm Springs, CA 922621104860816
Common questions
What is Mary Armbruster, DO's NPI number?
Mary Armbruster, DO's National Provider Identifier (NPI) is 1083300958, issued on Apr 13, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Mary Armbruster, DO located?
The NPPES record lists a practice address at 1150 N Palm Canyon Dr, Palm Springs, CA, 92262. Phone: (760) 416-4568. Providers update this record themselves, so call before visiting.
How can I verify Mary Armbruster, DO's license?
NPPES lists California license number 20A23376, 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 Mary Armbruster, DO prescribe under Medicare Part D?
In 2024, Mary Armbruster, DO had 113 Medicare Part D claims for 86 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.