NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1518915784 MD
Verify on CMS → Maureen Maher, MD
Cardiovascular Disease Physician in Leominster, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,810 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
4K
Medicare Part D claims · 637 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$147.73
6 payments · CMS Open Payments (Sunshine Act)
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
Maureen Maher, MD filed 3,626 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Leominster, Massachusetts, prescribing 84% generic.
- 4K
- Part D claims, 2023
- 84%
- 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.
Maureen Maher, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,626 Top 9% higher than 91% 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)
Maureen Maher, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Maureen Maher, MD?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
3,626 20% vs specialty avg
Specialty distribution in Massachusetts
How Cardiovascular Disease Physician compares to other specialties among Massachusetts 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).
Maureen Maher, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 100 HOSPITAL RD, 3B, Leominster, MA, 01453, with a listed phone of (978) 534-3179. NPI 1518915784 was issued on 05/04/2006.
Medicare Part D records for calendar year 2023 show 3,626 prescription claims written by this provider, covering 637 Medicare beneficiaries and totaling roughly $873K in drug spend, split 16% brand-name and 84% generic by claim count.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,810 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 | 1518915784 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 05/04/2006 |
Hospital and facility affiliations
Facilities where Maureen Maher, MD 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.
Intermountain Medical Group Grand Junction, LLC
Grand Junction, CO
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Maureen Maher, MD. Source: openpaymentsdata.cms.gov.
Total received
$148
Largest payer
Cleerly, Inc.
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 - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Maureen Maher, MD. To verify Maureen Maher, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Maureen Maher, MD - brand share 16.0%
Cardiovascular Disease Physician average
16% brand-name claims vs 84% generic, on 3,626 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.
3,626
Total Claims
$873K
Total Drug Cost
637
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 9,738
- Total Day Supply
- 290,692
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $790K
- Generic Drug Cost
- $83K
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 75.3 years
- Avg HCC Risk Score
- 1.59
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 44, 65-74: 264, 75-84: 232, 85+: 97
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Maureen Maher, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Succinate
Metoprolol Succinate
595 claims
- Atorvastatin Calcium
Atorvastatin Calcium
352 claims
- Eliquis
Eliquis
273 claims
- Lisinopril
Lisinopril
240 claims
- Amlodipine Besylate 208
Amlodipine Besylate
208 claims
- Xarelto 164
Xarelto
164 claims
- Furosemide 160
Furosemide
160 claims
- Losartan Potassium 159
Losartan Potassium
159 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 595 |
| Atorvastatin Calcium | 352 |
| Eliquis Apixaban | 273 |
| Lisinopril | 240 |
| Amlodipine Besylate | 208 |
| Xarelto Rivaroxaban | 164 |
| Furosemide | 160 |
| Losartan Potassium | 159 |
| Metoprolol Tartrate | 146 |
| Isosorbide Mononitrate Er Isosorbide Mononitrate | 126 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Cardiovascular Disease Physician in MA →
All providers in Massachusetts →
Compare specialties →
Cardiovascular Disease Physician Overview
How Maureen Maher, MD fits within the Cardiovascular Disease Physician landscape nationally.
24,810
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Maureen Maher, MD's 3,626 claims are above the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Maher.
Dr. Omar Abdel-Razek
MD
Boston, MA
Abdelrhman Abumoawad
Boston, MA
Dr. Kenneth Adams
M.D.
Haverhill, MA
Dr. Dale Adler
M.D.
Boston, MA
Dr. Nadeem Afridi
MD
Newburyport, MA
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 Massachusetts 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Massachusetts
Frequently Asked Questions
What is Maureen Maher, MD's specialty? ▼
Maureen Maher, MD specializes in Cardiovascular Disease Physician and practices in Leominster, Massachusetts. Credentials: MD.
How much does Maureen Maher, MD prescribe under Medicare Part D? ▼
In 2023, Maureen Maher, MD wrote 3,626 Medicare Part D claims totaling $873K in drug costs for 637 beneficiaries.
Where is Maureen Maher, MD located? ▼
Maureen Maher, MD is located at 100 HOSPITAL RD, 3B, Leominster, MA, 01453. Phone: (978) 534-3179.
What is Maureen Maher, MD's NPI number? ▼
Maureen Maher, MD's National Provider Identifier (NPI) is 1518915784, issued on 05/04/2006.
Does Maureen Maher, MD prescribe more brand-name or generic drugs? ▼
Maureen Maher, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $790K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,810 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 Maureen Maher, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Maureen Maher, MD's most frequently prescribed drugs include Metoprolol Succinate, Atorvastatin Calcium, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Maureen Maher, MD accept Medicare? ▼
Maureen Maher, MD appears in CMS Medicare data with 3,626 Part D claims and 637 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Maureen Maher, MD's credentials? ▼
Maureen Maher, MD's NPI is 1518915784 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.