Maria Kostrzewski, M.D.
NPI 1629067814 · Psychiatry Physician · Toledo, OH
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Kostrzewski, M.D. is a Psychiatry Physician provider in Toledo, OH (NPI 1629067814).
Provider details
- NPI number
- 1629067814
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 35076359K (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
78 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 78 | $117 |
Typical Medicare-allowed amounts for these services range $117–$117 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 298 | 36 |
| Hydroxyzine Hcl | 224 | 27 |
| Bupropion Hclbrand: Bupropion Xl | 214 | 23 |
| Buspirone Hcl | 166 | 17 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 126 | 17 |
| Escitalopram Oxalate | 105 | 14 |
| Duloxetine Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-19
- Last updated
- 2016-09-12
Frequently asked questions
- What is Maria Kostrzewski's NPI number?
- Maria Kostrzewski's National Provider Identifier (NPI) is 1629067814, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Kostrzewski's specialty?
- Maria Kostrzewski is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Kostrzewski located?
- Maria Kostrzewski's practice location on file with NPPES is 544 E Woodruff Ave, Toledo, OH 43604-5342.
- What is Maria Kostrzewski's phone number?
- The practice phone number listed in the NPPES registry for Maria Kostrzewski is (419) 693-0631.
- Does Maria Kostrzewski accept Medicare?
- Maria Kostrzewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Kostrzewski's NPI active?
- Yes — Maria Kostrzewski's NPI (1629067814) is active in the NPPES registry as of the last update on 2016-09-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.