2026 NPPES data Pediatric Gastroenterology Physician NPI 1457798027 M.D.
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STANLEY LAU, M.D.

Pediatric Gastroenterology Physician in WORCESTER, 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
13
Medicare Part D claims · Pediatric Gastroenterology Physician avg: 69

What the federal data shows

STANLEY LAU, M.D. filed 13 Medicare Part D claims in 2023 as a Pediatric Gastroenterology Physician in WORCESTER, Massachusetts.

13
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.

STANLEY LAU, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

13 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)

STANLEY LAU, 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 STANLEY LAU, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/23/2013

NPI 1457798027

Primary specialty

Pediatric Gastroenterology Physician

Niche

1,587 US NPIs in this specialty

Medicare Part D claims

13 81% vs specialty avg

2023 prescription claims

Specialty avg: 69

Specialty distribution in Massachusetts

How Pediatric Gastroenterology Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Pediatric Gastroenterology Physician share within Massachusetts

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

Specialty board-certification context

Estimated specialty board-certified rate — Pediatric Gastroenterology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Pediatric Gastroenterology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pediatric Gastroenterology 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).

STANLEY LAU, M.D. is a Pediatric Gastroenterology Physician provider practicing in WORCESTER, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1457798027. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

STANLEY LAU, M.D. appears in the CMS NPPES registry as a Pediatric Gastroenterology Physician provider holding M.D. credentials at 55 LAKE AVE N, WORCESTER, MA, 01655, with a listed phone of (774) 441-8082. NPI 1457798027 was issued on 05/23/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LAU 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 13 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $329 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.

Pediatric Gastroenterology Physician is a narrow specialty nationwide, with 1,587 enrolled providers across 50 states and an average of 69 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

55 LAKE AVE N
WORCESTER, MA 01655

Provider Details

NPI 1457798027
Specialty Pediatric Gastroenterology Physician
Credentials M.D.
Gender Male
NPI Issued 05/23/2013

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 STANLEY LAU, M.D.. To verify STANLEY LAU, 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.

13
Total Claims
$329
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13
Total Day Supply
390
Brand Drug Cost
$0
Generic Drug Cost
$329

Patient Demographics

Average Patient Age
50.0 years
Avg HCC Risk Score
1.75

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Ursodiol
13

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Pediatric Gastroenterology Physician Overview

How STANLEY LAU, M.D. fits within the Pediatric Gastroenterology Physician landscape nationally.

1,587
Pediatric Gastroenterology Physician Providers in US
50
States with Pediatric Gastroenterology Physician
69
Avg Claims per Provider

STANLEY LAU, M.D.'s 13 claims are below the specialty average of 69.

Nearby Pediatric Gastroenterology Physician Providers in Massachusetts

Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as LAU.

Compare Pediatric Gastroenterology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is STANLEY LAU, M.D.'s specialty?
STANLEY LAU, M.D. specializes in Pediatric Gastroenterology Physician and practices in WORCESTER, Massachusetts. Credentials: M.D..
How much does STANLEY LAU, M.D. prescribe under Medicare Part D?
In 2023, STANLEY LAU, M.D. wrote 13 Medicare Part D claims totaling $329 in drug costs for N/A beneficiaries.
Where is STANLEY LAU, M.D. located?
STANLEY LAU, M.D. is located at 55 LAKE AVE N, WORCESTER, MA, 01655. Phone: (774) 441-8082.
What is STANLEY LAU, M.D.'s NPI number?
STANLEY LAU, M.D.'s National Provider Identifier (NPI) is 1457798027, issued on 05/23/2013.
How many Pediatric Gastroenterology Physician providers are there in the US?
There are 1,587 Pediatric Gastroenterology Physician providers across 50 states in the US. The average Pediatric Gastroenterology Physician provider writes 69 Medicare Part D claims per year.
What drugs does STANLEY LAU, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STANLEY LAU, M.D.'s most frequently prescribed drugs include Ursodiol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STANLEY LAU, M.D. accept Medicare?
STANLEY LAU, M.D. appears in CMS Medicare data with 13 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STANLEY LAU, M.D.'s credentials?
STANLEY LAU, M.D.'s NPI is 1457798027 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