NPI registry status
Active
2026 NPPES data Adult Medicine Physician NPI 1679545339 MD
Verify on CMS → Karen Fanucci, MD
Adult Medicine Physician in Concord, 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 2,481 in Adult Medicine 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
6K
Medicare Part D claims · 457 beneficiaries · Adult Medicine Physician avg: 3K
Generic prescribing
90%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$241.7
13 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
Karen Fanucci, MD filed 5,549 Medicare Part D claims in 2023 as a Adult Medicine Physician in Concord, Massachusetts, prescribing 90% generic.
- 6K
- Part D claims, 2023
- 90%
- 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.
Karen Fanucci, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,549 Top 5% higher than 95% 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)
Karen Fanucci, 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 Karen Fanucci, MD?
Quality data not reportedPrimary specialty
Adult Medicine Physician
Medicare Part D claims
5,549 98% vs specialty avg
Specialty distribution in Massachusetts
How Adult Medicine 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 Adult Medicine 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).
Karen Fanucci, MD appears in the CMS NPPES registry as a Adult Medicine Physician provider holding MD credentials at 131 OLD ROAD TO 9 ACRE COR, Concord, MA, 01742, with a listed phone of (978) 371-7778. NPI 1679545339 was issued on 02/06/2006.
Medicare Part D records for calendar year 2023 show 5,549 prescription claims written by this provider, covering 457 Medicare beneficiaries and totaling roughly $364K in drug spend, split 9% brand-name and 90% generic by claim count, with an opioid prescribing rate of 3.7%.
Adult Medicine Physician is a narrow specialty nationwide, with 2,481 enrolled providers across 52 states and an average of 2,807 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 | 1679545339 |
|---|---|
| Specialty | Adult Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 02/06/2006 |
Hospital and facility affiliations
Facilities where Karen Fanucci, 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.
Emerson Practice Associates, Inc
Concord, MA
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 Karen Fanucci, MD. Source: openpaymentsdata.cms.gov.
Total received
$242
Largest payer
PFIZER 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 Karen Fanucci, MD. To verify Karen Fanucci, 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 · Generic-heavy
Karen Fanucci, MD - brand share 9.0%
Adult Medicine Physician average
9% brand-name claims vs 90% generic, on 5,549 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.
5,549
Total Claims
$364K
Total Drug Cost
457
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 12,040
- Total Day Supply
- 350,919
- Brand vs Generic
- 9% brand / 90% generic
- Brand Drug Cost
- $251K
- Generic Drug Cost
- $112K
- Opioid Claims
- 207 (3.7% rate)
- Antibiotic Claims
- 154
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 1.00
- Gender Split
- 74% female / 26% male
- Age Distribution
- <65: 32, 65-74: 204, 75-84: 169, 85+: 52
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Karen Fanucci, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
356 claims
- Amlodipine Besylate
Amlodipine Besylate
336 claims
- Levothyroxine Sodium
Levothyroxine Sodium
307 claims
- Lisinopril
Lisinopril
239 claims
- Omeprazole
Omeprazole
176 claims
- Metoprolol Succinate
Metoprolol Succinate
160 claims
- Lorazepam
Lorazepam
150 claims
- Losartan Potassium
Losartan Potassium
146 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 356 |
| Amlodipine Besylate | 336 |
| Levothyroxine Sodium | 307 |
| Lisinopril | 239 |
| Omeprazole | 176 |
| Metoprolol Succinate | 160 |
| Lorazepam | 150 |
| Losartan Potassium | 146 |
| Simvastatin | 143 |
| Gabapentin | 140 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Medicine Physician Overview
How Karen Fanucci, MD fits within the Adult Medicine Physician landscape nationally.
2,481
Adult Medicine Physician Providers in US
52
States with Adult Medicine Physician
2,807
Avg Claims per Provider
Karen Fanucci, MD's 5,549 claims are above the specialty average of 2,807.
Nearby Adult Medicine Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Fanucci.
Dr. Titilayo Alabi
M.D.
Waltham, MA
Dr. Mohammad Arshad
D.O
Harwich, MA
Dr. Kaleigh Barker
PA-C
Plymouth, MA
Laurie Basinait
Great Barrington, MA
Dr. Jill Becker
M.D.
Framingham, MA
Compare Adult Medicine 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 Adult Medicine 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
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How to Find a Doctor
Step-by-step guide to choosing a provider
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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 Karen Fanucci, MD's specialty? ▼
Karen Fanucci, MD specializes in Adult Medicine Physician and practices in Concord, Massachusetts. Credentials: MD.
How much does Karen Fanucci, MD prescribe under Medicare Part D? ▼
In 2023, Karen Fanucci, MD wrote 5,549 Medicare Part D claims totaling $364K in drug costs for 457 beneficiaries.
Where is Karen Fanucci, MD located? ▼
Karen Fanucci, MD is located at 131 OLD ROAD TO 9 ACRE COR, Concord, MA, 01742. Phone: (978) 371-7778.
What is Karen Fanucci, MD's NPI number? ▼
Karen Fanucci, MD's National Provider Identifier (NPI) is 1679545339, issued on 02/06/2006.
Does Karen Fanucci, MD prescribe more brand-name or generic drugs? ▼
Karen Fanucci, MD's prescribing is 9% brand-name and 90% generic drugs by claim count, with $251K in brand drug costs.
Does Karen Fanucci, MD prescribe opioids? ▼
Yes, Karen Fanucci, MD had 207 opioid claims in 2023 with an opioid prescribing rate of 3.7%.
How many Adult Medicine Physician providers are there in the US? ▼
There are 2,481 Adult Medicine Physician providers across 52 states in the US. The average Adult Medicine Physician provider writes 2,807 Medicare Part D claims per year.
What drugs does Karen Fanucci, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Karen Fanucci, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karen Fanucci, MD accept Medicare? ▼
Karen Fanucci, MD appears in CMS Medicare data with 5,549 Part D claims and 457 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karen Fanucci, MD's credentials? ▼
Karen Fanucci, MD's NPI is 1679545339 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.