NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1790737013 MD
Verify on CMS → Mallory Hatfield, MD
Cardiovascular Disease Physician in Hyannis, 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
8K
Medicare Part D claims · 1K beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
86%
generic claims · 14% 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
Mallory Hatfield, MD filed 8,239 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Hyannis, Massachusetts, prescribing 86% generic.
- 8K
- Part D claims, 2023
- 86%
- generic prescribing
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.
Mallory Hatfield, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
8,239 Top 3% higher than 97% 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-eligible specialty (heuristic, not verified)
Mallory Hatfield, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mallory Hatfield, MD?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
8,239 172% 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).
Mallory Hatfield, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 46 NORTH ST, Hyannis, MA, 02601, with a listed phone of (508) 778-4888. NPI 1790737013 was issued on 05/16/2006.
Medicare Part D records for calendar year 2023 show 8,239 prescription claims written by this provider, covering 1,194 Medicare beneficiaries and totaling roughly $2.0 million in drug spend, split 14% brand-name and 86% 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 | 1790737013 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 05/16/2006 |
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 Mallory Hatfield, MD. To verify Mallory Hatfield, 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
Mallory Hatfield, MD - brand share 14.0%
Cardiovascular Disease Physician average
14% brand-name claims vs 86% generic, on 8,239 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.
8,239
Total Claims
$2.0M
Total Drug Cost
1,194
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 23,018
- Total Day Supply
- 687,909
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $1.7M
- Generic Drug Cost
- $287K
- Antibiotic Claims
- 60
Patient Demographics
- Average Patient Age
- 77.7 years
- Avg HCC Risk Score
- 1.30
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 14, 65-74: 416, 75-84: 558, 85+: 206
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mallory Hatfield, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
1,332 claims
- Metoprolol Succinate
Metoprolol Succinate
892 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
743 claims
- Eliquis
Eliquis
581 claims
- Amlodipine Besylate
Amlodipine Besylate
579 claims
- Lisinopril 421
Lisinopril
421 claims
- Xarelto 290
Xarelto
290 claims
- Carvedilol 265
Carvedilol
265 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 1,332 |
| Metoprolol Succinate | 892 |
| Rosuvastatin Calcium | 743 |
| Eliquis Apixaban | 581 |
| Amlodipine Besylate | 579 |
| Lisinopril | 421 |
| Xarelto Rivaroxaban | 290 |
| Carvedilol | 265 |
| Losartan Potassium | 257 |
| Ezetimibe | 251 |
* 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 Mallory Hatfield, 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
Mallory Hatfield, MD's 8,239 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 Hatfield.
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.
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Frequently Asked Questions
What is Mallory Hatfield, MD's specialty? ▼
Mallory Hatfield, MD specializes in Cardiovascular Disease Physician and practices in Hyannis, Massachusetts. Credentials: MD.
How much does Mallory Hatfield, MD prescribe under Medicare Part D? ▼
In 2023, Mallory Hatfield, MD wrote 8,239 Medicare Part D claims totaling $2.0M in drug costs for 1,194 beneficiaries.
Where is Mallory Hatfield, MD located? ▼
Mallory Hatfield, MD is located at 46 NORTH ST, Hyannis, MA, 02601. Phone: (508) 778-4888.
What is Mallory Hatfield, MD's NPI number? ▼
Mallory Hatfield, MD's National Provider Identifier (NPI) is 1790737013, issued on 05/16/2006.
Does Mallory Hatfield, MD prescribe more brand-name or generic drugs? ▼
Mallory Hatfield, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $1.7M 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 Mallory Hatfield, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mallory Hatfield, MD's most frequently prescribed drugs include Atorvastatin Calcium, Metoprolol Succinate, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mallory Hatfield, MD accept Medicare? ▼
Mallory Hatfield, MD appears in CMS Medicare data with 8,239 Part D claims and 1,194 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mallory Hatfield, MD's credentials? ▼
Mallory Hatfield, MD's NPI is 1790737013 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.