2026 NPPES data Rheumatology Physician NPI 1184670861 MD
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ALICE WILLIAMS, MD

Rheumatology Physician in LEOMINSTER, 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
387
Medicare Part D claims · 146 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$24
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ALICE WILLIAMS, MD filed 387 Medicare Part D claims in 2023 as a Rheumatology Physician in LEOMINSTER, Massachusetts, prescribing 74% generic.

387
Part D claims, 2023
74%
generic prescribing
$24
industry payments (Sunshine Act)

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.

ALICE WILLIAMS, MD's Medicare Part D volume vs every U.S. prescriber

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

387 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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)

ALICE WILLIAMS, 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 ALICE WILLIAMS, MD?

Quality data not reported

NPI registry status

Active

Issued 05/25/2006

NPI 1184670861

Primary specialty

Rheumatology Physician

Mid-sized

6,181 US NPIs in this specialty

Medicare Part D claims

387 81% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

Specialty distribution in Massachusetts

How Rheumatology Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Rheumatology Physician share within Massachusetts

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

Specialty board-certification context

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

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

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

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

ALICE WILLIAMS, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 225 NEW LANCASTER ROAD, LEOMINSTER, MA, 01453, with a listed phone of (978) 466-3333. NPI 1184670861 was issued on 05/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS 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 387 prescription claims written by this provider, covering 146 Medicare beneficiaries and totaling roughly $605K in drug spend, split 26% brand-name and 74% generic by claim count. 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.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 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

225 NEW LANCASTER ROAD
LEOMINSTER, MA 01453

Provider Details

NPI 1184670861
Specialty Rheumatology Physician
Credentials MD
Gender Female
NPI Issued 05/25/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for ALICE WILLIAMS, MD. Source: openpaymentsdata.cms.gov.

Total received

$24

Largest payer

Radius Health, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 ALICE WILLIAMS, MD. To verify ALICE WILLIAMS, 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 · Above average

ALICE WILLIAMS, MD — brand share 26.0%
Specialty average (est.)

26% brand-name claims vs 74% generic, on 387 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.

387
Total Claims
$605K
Total Drug Cost
146
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
672
Total Day Supply
19,872
Brand vs Generic
26% brand / 74% generic
Brand Drug Cost
$596K
Generic Drug Cost
$9K

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
1.89
Gender Split
79% female / 21% male
Age Distribution
<65: 25, 65-74: 53, 75-84: 45, 85+: 23

Top Prescribed Drugs (Medicare Part D)

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

What ALICE WILLIAMS, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisone
77
Methotrexate
Methotrexate Sodium
54
Alendronate Sodium
36
Allopurinol
29
Humira(Cf) Pen
Adalimumab
22
Hydroxychloroquine Sulfate
16
Enbrel Sureclick
Etanercept
15
Azathioprine
12

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

Rheumatology Physician Overview

How ALICE WILLIAMS, MD fits within the Rheumatology Physician landscape nationally.

6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

ALICE WILLIAMS, MD's 387 claims are below the specialty average of 2,054.

Nearby Rheumatology Physician Providers in Massachusetts

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

Compare Rheumatology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALICE WILLIAMS, MD's specialty?
ALICE WILLIAMS, MD specializes in Rheumatology Physician and practices in LEOMINSTER, Massachusetts. Credentials: MD.
How much does ALICE WILLIAMS, MD prescribe under Medicare Part D?
In 2023, ALICE WILLIAMS, MD wrote 387 Medicare Part D claims totaling $605K in drug costs for 146 beneficiaries.
Where is ALICE WILLIAMS, MD located?
ALICE WILLIAMS, MD is located at 225 NEW LANCASTER ROAD, LEOMINSTER, MA, 01453. Phone: (978) 466-3333.
What is ALICE WILLIAMS, MD's NPI number?
ALICE WILLIAMS, MD's National Provider Identifier (NPI) is 1184670861, issued on 05/25/2006.
Does ALICE WILLIAMS, MD prescribe more brand-name or generic drugs?
ALICE WILLIAMS, MD's prescribing is 26% brand-name and 74% generic drugs by claim count, with $596K in brand drug costs.
How many Rheumatology Physician providers are there in the US?
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does ALICE WILLIAMS, MD prescribe most often?
Based on 2023 Medicare Part D data, ALICE WILLIAMS, MD's most frequently prescribed drugs include Prednisone, Methotrexate, Alendronate Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALICE WILLIAMS, MD accept Medicare?
ALICE WILLIAMS, MD appears in CMS Medicare data with 387 Part D claims and 146 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALICE WILLIAMS, MD's credentials?
ALICE WILLIAMS, MD's NPI is 1184670861 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

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