Maria I. Kostrzewski, M.D.
Psychiatry Physician · Toledo, OH
Maria I. Kostrzewski, M.D. is a psychiatry physician with a practice address in Toledo, Ohio, and NPI 1629067814, issued on Oct 19, 2005. Check the license (Ohio 35076359K, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Maria I. Kostrzewski
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 35076359K OH
Self-reported in NPPES; status is on the state search - Practice location
- 544 E Woodruff Ave, Toledo, OH 43604
- Phone
- (419) 693-0631
- Enumerated
- Oct 19, 2005
- Record last updated
- Sep 12, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (419) 936-7606
- Medicaid ID
- 0201641 OH
- Medicare enrollment
- Enrolled (PECOS I20111114000725); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,587 in Ohio → Look up another NPI →
Also registered at 544 E Woodruff Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Camille Abounaaj, BA, LSWClinical Social Worker1093132029
- Carol Allen, ACT PEER SPECIALISTPeer Specialist1972155190
- Lisa Anderson, RNPsychiatric/Mental Health Registered Nurse1730506841
- Susan Andrews, LSWSocial Worker1144731167
- Sara AngelCommunity Health Worker1770070567
- Charles AwlsCase Manager/Care Coordinator1467171330
Verify Maria I. Kostrzewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35076359KCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average psychiatry physician in 2024
3,270 Medicare Part D claims for 114 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Trazodone Hcl298 claims
- Hydroxyzine Hcl224 claims
- Bupropion Xl214 claims
- Buspirone Hcl166 claims
- Citalopram Hbr126 claims
- Escitalopram Oxalate105 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.
Industry payments in 2024: $22.78
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Zepf CenterToledo, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria I. Kostrzewski among 1,587 psychiatry physician records in Ohio
Maria I. Kostrzewski, M.D. is one of 1,587 psychiatry physician records with a practice address in Ohio. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 49% of these records are
- Graduated1974 · median 2003 among the 775 with a school on file
- Record last updated2016 · 61% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Ohio
There are 1,587 psychiatry physician records in Ohio.
All 1,587 in Ohio → Every provider in Toledo → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Satwant Gill, M.D.Toledo, OH 436041356337406
- Ted Hunter, M.D.Toledo, OH 436041710298591
- Irfan Ahmed, MDToledo, OH 436051740409333
- Usha Salvi, M.D.Toledo, OH 436051497741623
- Barbara Cuddeback, MDToledo, OH 436061669540597
- Ruth Erulkar, MDToledo, OH 436061578557492
- Melanie Haddox, MDToledo, OH 436061609840099
- David Jahn, MDToledo, OH 436061508802224
Common questions
What is Maria I. Kostrzewski, M.D.'s NPI number?
Maria I. Kostrzewski, M.D.'s National Provider Identifier (NPI) is 1629067814, issued on Oct 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Maria I. Kostrzewski, M.D. located?
The NPPES record lists a practice address at 544 E Woodruff Ave, Toledo, OH, 43604. Phone: (419) 693-0631. Providers update this record themselves, so call before visiting.
How can I verify Maria I. Kostrzewski, M.D.'s license?
NPPES lists Ohio license number 35076359K, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maria I. Kostrzewski, M.D. prescribe under Medicare Part D?
In 2024, Maria I. Kostrzewski, M.D. had 3,270 Medicare Part D claims for 114 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.