NPI registry status
Active
2026 NPPES data Transplant Hepatology Physician NPI 1114614732 M.D.
Verify on CMS → Peter Wang, M.D.
Transplant Hepatology Physician in Boston, 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 134 in Transplant Hepatology 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
46
Medicare Part D claims · 23 beneficiaries · Transplant Hepatology Physician avg: 536
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Peter Wang, M.D. filed 46 Medicare Part D claims in 2023 as a Transplant Hepatology Physician in Boston, Massachusetts.
- 46
- Part D claims, 2023
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.
Peter Wang, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
46 0th percentile higher than 0% 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)
Peter Wang, M.D. 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 Peter Wang, M.D.?
Quality data not reportedPrimary specialty
Transplant Hepatology Physician
Medicare Part D claims
46 91% vs specialty avg
Specialty distribution in Massachusetts
How Transplant Hepatology 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 Transplant Hepatology 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).
Peter Wang, M.D. appears in the CMS NPPES registry as a Transplant Hepatology Physician provider holding M.D. credentials at 330 BROOKLINE AVENUE, Boston, MA, 02215, with a listed phone of (617) 667-8427. NPI 1114614732 was issued on 04/24/2023.
Medicare Part D records for calendar year 2023 show 46 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $1K in drug spend.
Transplant Hepatology Physician is a narrow specialty nationwide, with 134 enrolled providers across 36 states and an average of 536 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 | 1114614732 |
|---|---|
| Specialty | Transplant Hepatology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/24/2023 |
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 Peter Wang, M.D.. To verify Peter Wang, 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.
46
Total Claims
$1K
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 68
- Total Day Supply
- 1,841
- Brand Drug Cost
- $0
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 66.0 years
- Avg HCC Risk Score
- 3.31
Transplant Hepatology Physician Overview
How Peter Wang, M.D. fits within the Transplant Hepatology Physician landscape nationally.
134
Transplant Hepatology Physician Providers in US
36
States with Transplant Hepatology Physician
536
Avg Claims per Provider
Peter Wang, M.D.'s 46 claims are below the specialty average of 536.
Nearby Transplant Hepatology Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Wang.
Dr. Lauren Feld
M.D.
Worcester, MA
Dr. Kyle Kreitman
DO
Worcester, MA
Dr. Ming Lin
MD
Burlington, MA
Dr. Isabel Zacharias
MD
Worcester, MA
Compare Transplant Hepatology 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 Transplant Hepatology 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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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 Peter Wang, M.D.'s specialty? ▼
Peter Wang, M.D. specializes in Transplant Hepatology Physician and practices in Boston, Massachusetts. Credentials: M.D..
How much does Peter Wang, M.D. prescribe under Medicare Part D? ▼
In 2023, Peter Wang, M.D. wrote 46 Medicare Part D claims totaling $1K in drug costs for 23 beneficiaries.
Where is Peter Wang, M.D. located? ▼
Peter Wang, M.D. is located at 330 BROOKLINE AVENUE, Boston, MA, 02215. Phone: (617) 667-8427.
What is Peter Wang, M.D.'s NPI number? ▼
Peter Wang, M.D.'s National Provider Identifier (NPI) is 1114614732, issued on 04/24/2023.
How many Transplant Hepatology Physician providers are there in the US? ▼
There are 134 Transplant Hepatology Physician providers across 36 states in the US. The average Transplant Hepatology Physician provider writes 536 Medicare Part D claims per year.
Does Peter Wang, M.D. accept Medicare? ▼
Peter Wang, M.D. appears in CMS Medicare data with 46 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Peter Wang, M.D.'s credentials? ▼
Peter Wang, M.D.'s NPI is 1114614732 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.
- 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
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.