NPI registry status
Active
2026 NPPES data Adult Medicine Physician NPI 1588696728 MD
Verify on CMS → Amy Bretan, MD
Adult Medicine Physician in Flemington, New Jersey.
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
553
Medicare Part D claims · 253 beneficiaries · Adult Medicine Physician avg: 3K
MIPS score
77.7/100
▼ 5 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Amy Bretan, MD reported a CMS MIPS final score of 77.7/100 - below the 83.1 national average - and filed 553 Medicare Part D claims in 2023.
- 77.7/100
- MIPS score · -5 vs avg
- 553
- Part D claims, 2023
- 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.
Amy Bretan, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
78 24th percentile higher than 24% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Amy Bretan, MD sits
This provider among adult medicine physician peers
Across the 216 adult medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Amy Bretan, MD writes more Part D claims than 30% of them and scores higher on MIPS quality than 29% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one adult medicine physician peer from a representative sample of 60; the gold marker is Amy Bretan, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Amy Bretan, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Amy Bretan, MD?
Below national averagePrimary specialty
Adult Medicine Physician
Medicare Part D claims
553 80% vs specialty avg
MIPS final score
77.7/100 5.4 pts vs avg
Specialty distribution in New Jersey
How Adult Medicine Physician compares to other specialties among New Jersey providers
Medicare quality performance, MIPS
Amy Bretan, MD's 2023 MIPS final score plotted against the Adult Medicine Physician national average
- MIPS Final Score
- 77.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Adult Medicine Physician) - 77.7/100 vs national avg 83.1
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).
Amy Bretan, MD appears in the CMS NPPES registry as a Adult Medicine Physician provider holding MD credentials at 200 RARITAN COMMONS RTE 31 NORTH, Flemington, NJ, 08822, with a listed phone of (908) 782-5100. NPI 1588696728 was issued on 07/07/2006.
Medicare Part D records for calendar year 2023 show 553 prescription claims written by this provider, covering 253 Medicare beneficiaries and totaling roughly $33K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.7/100 for the 2023 performance year (Quality 77.3, Cost 48.4), compared with the national average of 83.1.
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 | 1588696728 |
|---|---|
| Specialty | Adult Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 07/07/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
77.7069
Final Score
Avg: 83.1
77.3041
Quality
48.3857
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Amy Bretan, 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.
Hunterdon Primary Care PC
Washington, NJ
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
553
Total Claims
$33K
Total Drug Cost
253
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,361
- Total Day Supply
- 39,597
- Generic Drug Cost
- $14K
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 74.7 years
- Avg HCC Risk Score
- 1.16
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 11, 65-74: 117, 75-84: 99, 85+: 26
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Amy Bretan, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
54 claims
- Simvastatin
Simvastatin
38 claims
- Metoprolol Succinate
Metoprolol Succinate
32 claims
- Levothyroxine Sodium
Levothyroxine Sodium
31 claims
- Amlodipine Besylate
Amlodipine Besylate
23 claims
- Allopurinol 19
Allopurinol
19 claims
- Rosuvastatin Calcium 19
Rosuvastatin Calcium
19 claims
- Lisinopril 12
Lisinopril
12 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 54 |
| Simvastatin | 38 |
| Metoprolol Succinate | 32 |
| Levothyroxine Sodium | 31 |
| Amlodipine Besylate | 23 |
| Allopurinol | 19 |
| Rosuvastatin Calcium | 19 |
| Lisinopril | 12 |
| Montelukast Sodium | 11 |
| Synthroid Levothyroxine Sodium | 11 |
* 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 Amy Bretan, 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
Amy Bretan, MD's 553 claims are below the specialty average of 2,807.
Nearby Adult Medicine Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Bretan.
Dr. Jodi Abramowitz
D.O.
Linwood, NJ
Dr. Joseph Aloise
D.O.
Haddon Heights, NJ
Pamela Anderson
Newark, NJ
Dr. Alexandru Bancila
MD
Highland Park, NJ
Dr. Ian Barnes
DO
Stratford, NJ
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 New Jersey 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
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 New Jersey
Frequently Asked Questions
What is Amy Bretan, MD's specialty? ▼
Amy Bretan, MD specializes in Adult Medicine Physician and practices in Flemington, New Jersey. Credentials: MD.
How much does Amy Bretan, MD prescribe under Medicare Part D? ▼
In 2023, Amy Bretan, MD wrote 553 Medicare Part D claims totaling $33K in drug costs for 253 beneficiaries.
What is Amy Bretan, MD's Medicare quality score? ▼
Amy Bretan, MD has a CMS MIPS Final Score of 77.7/100 (Quality: 77.3, Cost: 48.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Amy Bretan, MD located? ▼
Amy Bretan, MD is located at 200 RARITAN COMMONS RTE 31 NORTH, Flemington, NJ, 08822. Phone: (908) 782-5100.
What is Amy Bretan, MD's NPI number? ▼
Amy Bretan, MD's National Provider Identifier (NPI) is 1588696728, issued on 07/07/2006.
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 Amy Bretan, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Amy Bretan, MD's most frequently prescribed drugs include Atorvastatin Calcium, Simvastatin, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Amy Bretan, MD accept Medicare? ▼
Amy Bretan, MD appears in CMS Medicare data with 553 Part D claims and 253 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Amy Bretan, MD's credentials? ▼
Amy Bretan, MD's NPI is 1588696728 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.