2026 NPPES data Transplant Hepatology Physician NPI 1114614732 M.D.
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PETER WANG, M.D.

Transplant Hepatology Physician in BOSTON, Massachusetts. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
46
Medicare Part D claims · 23 beneficiaries · Transplant Hepatology Physician avg: 536

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

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 reported

NPI registry status

Active

Issued 04/24/2023

NPI 1114614732

Primary specialty

Transplant Hepatology Physician

Rare

131 US NPIs in this specialty

Medicare Part D claims

46 91% vs specialty avg

2023 prescription claims

Specialty avg: 536

Specialty distribution in Massachusetts

How Transplant Hepatology Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Transplant Hepatology Physician share within Massachusetts

1. Transplant Hepatology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Transplant Hepatology Physician share within Massachusetts

Specialty board-certification context

Estimated specialty board-certified rate — Transplant Hepatology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Transplant Hepatology Physician ABMS/AOA estimate

Est. board-certified rate (Transplant Hepatology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Transplant Hepatology Physician) — ABMS / AOA estimate

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WANG most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

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. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Transplant Hepatology Physician is a narrow specialty nationwide, with 131 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

330 BROOKLINE AVENUE
BOSTON, MA 02215

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.

131
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.

Compare Transplant Hepatology Physician nationally: see state-by-state distribution →

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 131 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

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