NPI registry status
Active
2026 NPPES data Psychiatry Physician NPI 1477134542 MD
Verify on CMS → Daniel Chrzanowski, MD
Psychiatry Physician in Towson, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 53,171 in Psychiatry Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
675
Medicare Part D claims · 56 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Daniel Chrzanowski, MD filed 675 Medicare Part D claims in 2023 as a Psychiatry Physician in Towson, Maryland, prescribing 97% generic.
- 675
- Part D claims, 2023
- 97%
- generic prescribing
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Daniel Chrzanowski, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
675 Top 31% higher than 69% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
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Board-eligible specialty (heuristic, not verified)
Daniel Chrzanowski, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Daniel Chrzanowski, MD?
Quality data not reportedPrimary specialty
Psychiatry Physician
Medicare Part D claims
675 35% vs specialty avg
Specialty distribution in Maryland
How Psychiatry Physician compares to other specialties among Maryland providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Psychiatry Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Daniel Chrzanowski, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at 6501 N CHARLES ST, Towson, MD, 21204, with a listed phone of (410) 938-5000. NPI 1477134542 was issued on 04/19/2021.
Medicare Part D records for calendar year 2023 show 675 prescription claims written by this provider, covering 56 Medicare beneficiaries and totaling roughly $54K in drug spend, split 3% brand-name and 97% generic by claim count.
Psychiatry Physician is a high-volume specialty nationwide, with 53,171 enrolled providers across 56 states and an average of 1,038 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1477134542 |
|---|---|
| Specialty | Psychiatry Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/19/2021 |
Brand vs generic prescribing mix · Generic-heavy
Daniel Chrzanowski, MD - brand share 3.0%
Psychiatry Physician average
3% brand-name claims vs 97% generic, on 675 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
675
Total Claims
$54K
Total Drug Cost
56
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 805
- Total Day Supply
- 22,451
- Brand vs Generic
- 3% brand / 97% generic
- Brand Drug Cost
- $31K
- Generic Drug Cost
- $23K
Patient Demographics
- Average Patient Age
- 52.0 years
- Avg HCC Risk Score
- 1.30
- Gender Split
- 50% female / 50% male
- Age Distribution
- <65: 40, 65-74: N/A, 75-84: N/A, 85+: 0
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Daniel Chrzanowski, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Quetiapine Fumarate
Quetiapine Fumarate
70 claims
- Trazodone Hcl
Trazodone Hcl
60 claims
- Buspirone Hcl
Buspirone Hcl
57 claims
- Sertraline Hcl
Sertraline Hcl
46 claims
- Divalproex Sodium
Divalproex Sodium
42 claims
- Venlafaxine Hcl Er
Venlafaxine Hcl Er
40 claims
- Clonazepam
Clonazepam
34 claims
- Risperidone
Risperidone
28 claims
| Drug | Claims |
|---|---|
| Quetiapine Fumarate | 70 |
| Trazodone Hcl | 60 |
| Buspirone Hcl | 57 |
| Sertraline Hcl | 46 |
| Divalproex Sodium | 42 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 40 |
| Clonazepam | 34 |
| Risperidone | 28 |
| Aripiprazole | 24 |
| Alprazolam | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Psychiatry Physician Overview
How Daniel Chrzanowski, MD fits within the Psychiatry Physician landscape nationally.
53,171
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider
Daniel Chrzanowski, MD's 675 claims are below the specialty average of 1,038.
Nearby Psychiatry Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Chrzanowski.
Dr. Hina Aamir
M.D.
Aberdeen, MD
Dr. Scott Aaronson
M.D.
Baltimore, MD
Dr. Archil Abashidze
MD
Glen Burnie, MD
Dr. Muhammad Abbas
M.D.
Sykesville, MD
Dr. Safiyyah Abdul Rahman
MD
Baltimore, MD
Compare Psychiatry Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Maryland medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Psychiatry Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Daniel Chrzanowski, MD's specialty? ▼
Daniel Chrzanowski, MD specializes in Psychiatry Physician and practices in Towson, Maryland. Credentials: MD.
How much does Daniel Chrzanowski, MD prescribe under Medicare Part D? ▼
In 2023, Daniel Chrzanowski, MD wrote 675 Medicare Part D claims totaling $54K in drug costs for 56 beneficiaries.
Where is Daniel Chrzanowski, MD located? ▼
Daniel Chrzanowski, MD is located at 6501 N CHARLES ST, Towson, MD, 21204. Phone: (410) 938-5000.
What is Daniel Chrzanowski, MD's NPI number? ▼
Daniel Chrzanowski, MD's National Provider Identifier (NPI) is 1477134542, issued on 04/19/2021.
Does Daniel Chrzanowski, MD prescribe more brand-name or generic drugs? ▼
Daniel Chrzanowski, MD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $31K in brand drug costs.
How many Psychiatry Physician providers are there in the US? ▼
There are 53,171 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does Daniel Chrzanowski, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Daniel Chrzanowski, MD's most frequently prescribed drugs include Quetiapine Fumarate, Trazodone Hcl, Buspirone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Daniel Chrzanowski, MD accept Medicare? ▼
Daniel Chrzanowski, MD appears in CMS Medicare data with 675 Part D claims and 56 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Daniel Chrzanowski, MD's credentials? ▼
Daniel Chrzanowski, MD's NPI is 1477134542 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.