NPI registry status
Active
2026 NPPES data General Practice Dentistry NPI 1336247568 DDS
Verify on CMS → Lawrence Grzegorzewski, DDS
General Practice Dentistry in Burton, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 121,642 in General Practice Dentistry, 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
133
Medicare Part D claims · 91 beneficiaries · General Practice Dentistry avg: 82
Industry payments
$23.33
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Lawrence Grzegorzewski, DDS filed 133 Medicare Part D claims in 2023 as a General Practice Dentistry in Burton, Michigan.
- 133
- Part D claims, 2023
- $23.33
- industry payments (Sunshine Act)
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.
Lawrence Grzegorzewski, DDS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
133 35th percentile higher than 35% 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
What does the federal data show about Lawrence Grzegorzewski, DDS?
Quality data not reportedPrimary specialty
General Practice Dentistry
Medicare Part D claims
133 62% vs specialty avg
Specialty distribution in Michigan
How General Practice Dentistry compares to other specialties among Michigan 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 General Practice Dentistry. 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).
Lawrence Grzegorzewski, DDS appears in the CMS NPPES registry as a General Practice Dentistry provider holding DDS credentials at 4087 S CENTER RD, Burton, MI, 48519, with a listed phone of (810) 744-1324. NPI 1336247568 was issued on 09/20/2006.
Medicare Part D records for calendar year 2023 show 133 prescription claims written by this provider, covering 91 Medicare beneficiaries and totaling roughly $439 in drug spend.
General Practice Dentistry is a high-volume specialty nationwide, with 121,642 enrolled providers across 56 states and an average of 82 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 | 1336247568 |
|---|---|
| Specialty | General Practice Dentistry |
| Credentials | DDS |
| Gender | Male |
| NPI Issued | 09/20/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Lawrence Grzegorzewski, DDS. Source: openpaymentsdata.cms.gov.
Total received
$23
Largest payer
Envista Holdings Corporation
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Michigan MI-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 - they are NOT specific to Lawrence Grzegorzewski, DDS. To verify Lawrence Grzegorzewski, DDS's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
133
Total Claims
$439
Total Drug Cost
91
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 135
- Total Day Supply
- 816
- Generic Drug Cost
- $427
- Antibiotic Claims
- 111
Patient Demographics
- Average Patient Age
- 75.4 years
- Avg HCC Risk Score
- 1.39
- Gender Split
- 58% female / 42% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Amoxicillin | 90 |
| Clindamycin Hcl | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
General Practice Dentistry Overview
How Lawrence Grzegorzewski, DDS fits within the General Practice Dentistry landscape nationally.
121,642
General Practice Dentistry Providers in US
56
States with General Practice Dentistry
82
Avg Claims per Provider
Lawrence Grzegorzewski, DDS's 133 claims are above the specialty average of 82.
Nearby General Practice Dentistry Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Grzegorzewski.
Dr. Anthony Abate
DDS
Sterling Heights, MI
Dr. Antonino Abate
DDS
Royal Oak, MI
Dr. Kathleen Abate
D.D.S.
Clinton Township, MI
Dr. Natalie Abbas
DDS
Dearborn, MI
Dr. Zeinab Abbas
DDS
Dearborn Heights, MI
Compare General Practice Dentistry 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 Michigan medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby General Practice Dentistry 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Lawrence Grzegorzewski, DDS's specialty? ▼
Lawrence Grzegorzewski, DDS specializes in General Practice Dentistry and practices in Burton, Michigan. Credentials: DDS.
How much does Lawrence Grzegorzewski, DDS prescribe under Medicare Part D? ▼
In 2023, Lawrence Grzegorzewski, DDS wrote 133 Medicare Part D claims totaling $439 in drug costs for 91 beneficiaries.
Where is Lawrence Grzegorzewski, DDS located? ▼
Lawrence Grzegorzewski, DDS is located at 4087 S CENTER RD, Burton, MI, 48519. Phone: (810) 744-1324.
What is Lawrence Grzegorzewski, DDS's NPI number? ▼
Lawrence Grzegorzewski, DDS's National Provider Identifier (NPI) is 1336247568, issued on 09/20/2006.
How many General Practice Dentistry providers are there in the US? ▼
There are 121,642 General Practice Dentistry providers across 56 states in the US. The average General Practice Dentistry provider writes 82 Medicare Part D claims per year.
What drugs does Lawrence Grzegorzewski, DDS prescribe most often? ▼
Based on 2023 Medicare Part D data, Lawrence Grzegorzewski, DDS's most frequently prescribed drugs include Amoxicillin, Clindamycin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lawrence Grzegorzewski, DDS accept Medicare? ▼
Lawrence Grzegorzewski, DDS appears in CMS Medicare data with 133 Part D claims and 91 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lawrence Grzegorzewski, DDS's credentials? ▼
Lawrence Grzegorzewski, DDS's NPI is 1336247568 with credentials DDS. 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.