Ewa Mickiewicz-Marcinkowska, M.D.
Psychiatry Physician · Covina, CA
Ewa Mickiewicz-Marcinkowska, M.D. is a psychiatry physician with a practice address in Covina, California, and NPI 1235393448, issued on Jul 16, 2008. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ewa Mickiewicz-Marcinkowska
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD435282 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1359 N Grand Ave, Covina, CA 91724
- Phone
- (626) 430-2900
- Enumerated
- Jul 16, 2008
- Record last updated
- Oct 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 102322768 PA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1359 N Grand Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria AcevesClinical Social Worker1578878872
- John AdriaticoCommunity Health Worker1366940611
- Giselle AlarconRehabilitation Practitioner1659115087
- Julio AlvaradoRehabilitation Practitioner1194800623
- Isidro AlvarezCommunity Health Worker1821652074
- Sahili Amador, LCSWClinical Social Worker1689920001
Verify Ewa Mickiewicz-Marcinkowska in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% more Medicare Part D claims than the average psychiatry physician in 2024
1,752 Medicare Part D claims for 77 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Aripiprazole225 claims
- Trazodone Hcl150 claims
- Sertraline Hcl125 claims
- Quetiapine Fumarate108 claims
- Hydroxyzine Hcl96 claims
- Olanzapine93 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.
Ewa Mickiewicz-Marcinkowska among 8,673 psychiatry physician records in California
Ewa Mickiewicz-Marcinkowska, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2020 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Covina → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Adib Bitar, M.D.,Covina, CA 917241922029024
- Cesar Cruz, M.DCovina, CA 917241861766099
- Zaheib Idrees, D.O.Covina, CA 917241063837151
- Cyrus Nasserian, M.D.Covina, CA 917241154692556
- Sambin Wang, D.O.Covina, CA 917241861710469
- William Sauve, M.DCovina, CA 917231194847178
- Sajid Ali, M.D.Covina, CA 917221386662740
- Nageswara Guntupalli, M.D.Covina, CA 917221790886174
Common questions
What is Ewa Mickiewicz-Marcinkowska, M.D.'s NPI number?
Ewa Mickiewicz-Marcinkowska, M.D.'s National Provider Identifier (NPI) is 1235393448, issued on Jul 16, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ewa Mickiewicz-Marcinkowska, M.D. located?
The NPPES record lists a practice address at 1359 N Grand Ave, Covina, CA, 91724. Phone: (626) 430-2900. Providers update this record themselves, so call before visiting.
How can I verify Ewa Mickiewicz-Marcinkowska, M.D.'s license?
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 Ewa Mickiewicz-Marcinkowska, M.D. prescribe under Medicare Part D?
In 2024, Ewa Mickiewicz-Marcinkowska, M.D. had 1,752 Medicare Part D claims for 77 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.