NPI registry status
Active
2026 NPPES data Hematology (Internal Medicine) Physician NPI 1366468415 M.D.
Verify on CMS → Michael Constantine, M.D.
Hematology (Internal Medicine) Physician in Milford, 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 1,436 in Hematology (Internal 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
1K
Medicare Part D claims · 258 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
MIPS score
86.3/100
▲ 3 pts above national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Michael Constantine, M.D. reported a CMS MIPS final score of 86.3/100 - above the 83.1 national average - and filed 1,261 Medicare Part D claims in 2023.
- 86.3/100
- MIPS score · +3 vs avg
- 1K
- 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.
Michael Constantine, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
86 Top 48% higher than 52% 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 Michael Constantine, M.D. sits
This provider among hematology (internal medicine) physician peers
Across the 570 hematology (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Michael Constantine, M.D. writes more Part D claims than 81% of them and scores higher on MIPS quality than 59% - placing this provider in the high-volume, high-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 hematology (internal medicine) physician peer from a representative sample of 60; the gold marker is Michael Constantine, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Michael Constantine, M.D. 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 Michael Constantine, M.D.?
High performer (top quartile)Primary specialty
Hematology (Internal Medicine) Physician
Medicare Part D claims
1,261 82% vs specialty avg
MIPS final score
86.3/100 3.2 pts vs avg
Specialty distribution in Massachusetts
How Hematology (Internal Medicine) Physician compares to other specialties among Massachusetts providers
Medicare quality performance, MIPS
Michael Constantine, M.D.'s 2023 MIPS final score plotted against the Hematology (Internal Medicine) Physician national average
- MIPS Final Score
- 86.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Hematology (Internal Medicine) Physician) - 86.3/100 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).
Michael Constantine, M.D. appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding M.D. credentials at 14 PROSPECT ST, Milford, MA, 01757, with a listed phone of (508) 478-2061. NPI 1366468415 was issued on 07/14/2006.
Medicare Part D records for calendar year 2023 show 1,261 prescription claims written by this provider, covering 258 Medicare beneficiaries and totaling roughly $4.7 million in drug spend, with an opioid prescribing rate of 5.8%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.3/100 for the 2023 performance year (Quality 69.4), compared with the national average of 83.1.
Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,436 enrolled providers across 50 states and an average of 693 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 | 1366468415 |
|---|---|
| Specialty | Hematology (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/14/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.2826
Final Score
Avg: 83.1
69.3633
Quality
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Michael Constantine, 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.
Dana-Farber Cancer Institute, Inc.
Boston, 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).
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 Michael Constantine, M.D.. To verify Michael Constantine, M.D.'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,261
Total Claims
$4.7M
Total Drug Cost
258
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,561
- Total Day Supply
- 38,027
- Generic Drug Cost
- $319K
- Opioid Claims
- 73 (5.8% rate)
- Antibiotic Claims
- 88
Patient Demographics
- Average Patient Age
- 74.4 years
- Avg HCC Risk Score
- 2.47
- Gender Split
- 43% female / 57% male
- Age Distribution
- <65: 31, 65-74: 97, 75-84: 94, 85+: 36
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Constantine, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Revlimid
Revlimid
72 claims
- Dexamethasone
Dexamethasone
60 claims
- Prednisone
Prednisone
59 claims
- Ondansetron Hcl
Ondansetron Hcl
52 claims
- Prochlorperazine M…
Prochlorperazine Maleate
48 claims
- Eliquis
Eliquis
43 claims
- Oxycodone Hcl
Oxycodone Hcl
36 claims
- Lorazepam 28
Lorazepam
28 claims
| Drug | Claims |
|---|---|
| Revlimid Lenalidomide | 72 |
| Dexamethasone | 60 |
| Prednisone | 59 |
| Ondansetron Hcl | 52 |
| Prochlorperazine Maleate | 48 |
| Eliquis Apixaban | 43 |
| Oxycodone Hcl | 36 |
| Lorazepam | 28 |
| Nubeqa Darolutamide | 28 |
| Gabapentin | 25 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hematology (Internal Medicine) Physician in MA →
All providers in Massachusetts →
Compare specialties →
Hematology (Internal Medicine) Physician Overview
How Michael Constantine, M.D. fits within the Hematology (Internal Medicine) Physician landscape nationally.
1,436
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider
Michael Constantine, M.D.'s 1,261 claims are above the specialty average of 693.
Nearby Hematology (Internal Medicine) Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Constantine.
Dr. Burt Alan Adelman
M.D.
Cambridge, MA
Dr. Joseph Antin
MD
Boston, MA
Dr. Hussein Assi
M.D
Boston, MA
Dr. Joseph Aziz
M.D
Boston, MA
Dr. Amira Barkal
MD
Boston, MA
Compare Hematology (Internal 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 Hematology (Internal 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.
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Frequently Asked Questions
What is Michael Constantine, M.D.'s specialty? ▼
Michael Constantine, M.D. specializes in Hematology (Internal Medicine) Physician and practices in Milford, Massachusetts. Credentials: M.D..
How much does Michael Constantine, M.D. prescribe under Medicare Part D? ▼
In 2023, Michael Constantine, M.D. wrote 1,261 Medicare Part D claims totaling $4.7M in drug costs for 258 beneficiaries.
What is Michael Constantine, M.D.'s Medicare quality score? ▼
Michael Constantine, M.D. has a CMS MIPS Final Score of 86.3/100 (Quality: 69.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Michael Constantine, M.D. located? ▼
Michael Constantine, M.D. is located at 14 PROSPECT ST, Milford, MA, 01757. Phone: (508) 478-2061.
What is Michael Constantine, M.D.'s NPI number? ▼
Michael Constantine, M.D.'s National Provider Identifier (NPI) is 1366468415, issued on 07/14/2006.
Does Michael Constantine, M.D. prescribe opioids? ▼
Yes, Michael Constantine, M.D. had 73 opioid claims in 2023 with an opioid prescribing rate of 5.8%.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,436 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
What drugs does Michael Constantine, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Constantine, M.D.'s most frequently prescribed drugs include Revlimid, Dexamethasone, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Constantine, M.D. accept Medicare? ▼
Michael Constantine, M.D. appears in CMS Medicare data with 1,261 Part D claims and 258 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Constantine, M.D.'s credentials? ▼
Michael Constantine, M.D.'s NPI is 1366468415 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.
- 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.