NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1447220561 M.D.
Verify on CMS → Wayne Kruithoff, M.D.
Cardiovascular Disease Physician in Portland, Maine.
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
3K
Medicare Part D claims · 629 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
76%
generic claims · 24% 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
Wayne Kruithoff, M.D. filed 2,973 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Portland, Maine, prescribing 76% generic.
- 3K
- Part D claims, 2023
- 76%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Wayne Kruithoff, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,973 Top 12% higher than 88% 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 certification likely (heuristic, not verified)
Wayne Kruithoff, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Wayne Kruithoff, M.D.?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
2,973 2% vs specialty avg
Specialty distribution in Maine
How Cardiovascular Disease Physician compares to other specialties among Maine 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).
Wayne Kruithoff, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 144 STATE ST, Portland, ME, 04101, with a listed phone of (207) 879-3770. NPI 1447220561 was issued on 01/23/2006.
Medicare Part D records for calendar year 2023 show 2,973 prescription claims written by this provider, covering 629 Medicare beneficiaries and totaling roughly $785K in drug spend, split 24% brand-name and 76% 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 | 1447220561 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/23/2006 |
Hospital and facility affiliations
Facilities where Wayne Kruithoff, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Central Maine Medical Center
★★★★☆ 4/5
Lewiston, ME
Acute Care Hospitals
CMS CCN: 200024
Mercy Hospital
Portland, ME
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Wayne Kruithoff, M.D. - brand share 24.0%
Cardiovascular Disease Physician average
24% brand-name claims vs 76% generic, on 2,973 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.
2,973
Total Claims
$785K
Total Drug Cost
629
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,600
- Total Day Supply
- 226,161
- Brand vs Generic
- 24% brand / 76% generic
- Brand Drug Cost
- $731K
- Generic Drug Cost
- $55K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 75.8 years
- Avg HCC Risk Score
- 1.43
- Gender Split
- 44% female / 56% male
- Age Distribution
- <65: 35, 65-74: 245, 75-84: 250, 85+: 99
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Wayne Kruithoff, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Succinate
Metoprolol Succinate
443 claims
- Eliquis
Eliquis
297 claims
- Losartan Potassium
Losartan Potassium
294 claims
- Atorvastatin Calcium
Atorvastatin Calcium
289 claims
- Lisinopril 118
Lisinopril
118 claims
- Xarelto 107
Xarelto
107 claims
- Entresto 102
Entresto
102 claims
- Amlodipine Besylate 96
Amlodipine Besylate
96 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 443 |
| Eliquis Apixaban | 297 |
| Losartan Potassium | 294 |
| Atorvastatin Calcium | 289 |
| Lisinopril | 118 |
| Xarelto Rivaroxaban | 107 |
| Entresto Sacubitril/Valsartan | 102 |
| Amlodipine Besylate | 96 |
| Spironolactone | 94 |
| Carvedilol | 93 |
* 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 Wayne Kruithoff, 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
Wayne Kruithoff, M.D.'s 2,973 claims are below the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in Maine
Other clinicians with the same primary specialty enrolled in Maine, drawn from the same CMS NPPES roster as Kruithoff.
Abraham Abernethy
Scarborough, ME
Dr. David Abisalih
MD
Skowhegan, ME
Dr. Warren Alpern
M.D.
Scarborough, ME
Dr. Beata Bajgierowicz
MD
Lewiston, ME
Dr. Lawrence Baker
MD
Lewiston, ME
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 Maine 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 Wayne Kruithoff, M.D.'s specialty? ▼
Wayne Kruithoff, M.D. specializes in Cardiovascular Disease Physician and practices in Portland, Maine. Credentials: M.D..
How much does Wayne Kruithoff, M.D. prescribe under Medicare Part D? ▼
In 2023, Wayne Kruithoff, M.D. wrote 2,973 Medicare Part D claims totaling $785K in drug costs for 629 beneficiaries.
Where is Wayne Kruithoff, M.D. located? ▼
Wayne Kruithoff, M.D. is located at 144 STATE ST, Portland, ME, 04101. Phone: (207) 879-3770.
What is Wayne Kruithoff, M.D.'s NPI number? ▼
Wayne Kruithoff, M.D.'s National Provider Identifier (NPI) is 1447220561, issued on 01/23/2006.
Does Wayne Kruithoff, M.D. prescribe more brand-name or generic drugs? ▼
Wayne Kruithoff, M.D.'s prescribing is 24% brand-name and 76% generic drugs by claim count, with $731K 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 Wayne Kruithoff, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Wayne Kruithoff, M.D.'s most frequently prescribed drugs include Metoprolol Succinate, Eliquis, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Wayne Kruithoff, M.D. accept Medicare? ▼
Wayne Kruithoff, M.D. appears in CMS Medicare data with 2,973 Part D claims and 629 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Wayne Kruithoff, M.D.'s credentials? ▼
Wayne Kruithoff, M.D.'s NPI is 1447220561 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.