NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1548237472 M.D.
Verify on CMS → Michael Stillabower, M.D.
Cardiovascular Disease Physician in Newark, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,795 in Cardiovascular Disease 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
441
Medicare Part D claims · 226 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
88%
generic claims · 12% 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
Michael Stillabower, M.D. filed 441 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Newark, Delaware, prescribing 88% generic.
- 441
- Part D claims, 2023
- 88%
- 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.
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
441 Top 38% higher than 62% 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
◑
Board-eligible specialty (heuristic, not verified)
Michael Stillabower, M.D. 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 Michael Stillabower, M.D.?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
441 85% vs specialty avg
Specialty distribution in Delaware
How Cardiovascular Disease Physician compares to other specialties among Delaware 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 Cardiovascular Disease 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).
Michael Stillabower, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 252 CHAPMAN RD, Newark, DE, 19702, with a listed phone of (302) 366-1929. NPI 1548237472 was issued on 02/28/2006.
Medicare Part D records for calendar year 2023 show 441 prescription claims written by this provider, covering 226 Medicare beneficiaries and totaling roughly $82K in drug spend, split 12% brand-name and 88% generic by claim count.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 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 | 1548237472 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/28/2006 |
Brand vs generic prescribing mix · Typical
Michael Stillabower, M.D. - brand share 12.0%
Cardiovascular Disease Physician average
12% brand-name claims vs 88% generic, on 441 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.
441
Total Claims
$82K
Total Drug Cost
226
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,258
- Total Day Supply
- 37,608
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $64K
- Generic Drug Cost
- $18K
Patient Demographics
- Average Patient Age
- 77.3 years
- Avg HCC Risk Score
- 1.53
- Gender Split
- 44% female / 56% male
- Age Distribution
- <65: 19, 65-74: 64, 75-84: 98, 85+: 45
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Stillabower, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Rosuvastatin Calcium
Rosuvastatin Calcium
57 claims
- Carvedilol
Carvedilol
51 claims
- Atorvastatin Calcium
Atorvastatin Calcium
45 claims
- Spironolactone
Spironolactone
28 claims
- Eliquis
Eliquis
27 claims
- Amlodipine Besylate
Amlodipine Besylate
25 claims
- Ezetimibe 22
Ezetimibe
22 claims
- Clopidogrel 16
Clopidogrel
16 claims
| Drug | Claims |
|---|---|
| Rosuvastatin Calcium | 57 |
| Carvedilol | 51 |
| Atorvastatin Calcium | 45 |
| Spironolactone | 28 |
| Eliquis Apixaban | 27 |
| Amlodipine Besylate | 25 |
| Ezetimibe | 22 |
| Clopidogrel Clopidogrel Bisulfate | 16 |
| Losartan Potassium | 15 |
| Metoprolol Succinate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Michael Stillabower, M.D. fits within the Cardiovascular Disease Physician landscape nationally.
24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Michael Stillabower, M.D.'s 441 claims are below the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Stillabower.
Dr. Vincent Abbrescia
D.O
Dover, DE
Dr. Kamar Adeleke
M.D, F.A.C.C
Wilmington, DE
Dr. Zaid Ahmad Amin
MD
Lewes, DE
Dr. Laeeq Ahmer
M.D
Milford, DE
Dr. Anthony Alfieri
D.O.
Newark, DE
Compare Cardiovascular Disease 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 Delaware medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Cardiovascular Disease 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 Michael Stillabower, M.D.'s specialty? ▼
Michael Stillabower, M.D. specializes in Cardiovascular Disease Physician and practices in Newark, Delaware. Credentials: M.D..
How much does Michael Stillabower, M.D. prescribe under Medicare Part D? ▼
In 2023, Michael Stillabower, M.D. wrote 441 Medicare Part D claims totaling $82K in drug costs for 226 beneficiaries.
Where is Michael Stillabower, M.D. located? ▼
Michael Stillabower, M.D. is located at 252 CHAPMAN RD, Newark, DE, 19702. Phone: (302) 366-1929.
What is Michael Stillabower, M.D.'s NPI number? ▼
Michael Stillabower, M.D.'s National Provider Identifier (NPI) is 1548237472, issued on 02/28/2006.
Does Michael Stillabower, M.D. prescribe more brand-name or generic drugs? ▼
Michael Stillabower, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $64K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Michael Stillabower, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Stillabower, M.D.'s most frequently prescribed drugs include Rosuvastatin Calcium, Carvedilol, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Stillabower, M.D. accept Medicare? ▼
Michael Stillabower, M.D. appears in CMS Medicare data with 441 Part D claims and 226 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Stillabower, M.D.'s credentials? ▼
Michael Stillabower, M.D.'s NPI is 1548237472 with credentials M.D.. 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.