2026 NPPES data Surgical Physician Assistant NPI 1558509117 PA
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MICHAEL TREAT, PA

Surgical Physician Assistant 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
515
Medicare Part D claims · 275 beneficiaries · Surgical Physician Assistant avg: 316
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$35.15
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MICHAEL TREAT, PA filed 515 Medicare Part D claims in 2023 as a Surgical Physician Assistant in WORCESTER, Massachusetts, prescribing 82% generic.

515
Part D claims, 2023
82%
generic prescribing
$35.15
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.

MICHAEL TREAT, PA's Medicare Part D volume vs every U.S. prescriber

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

515 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 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

What does the federal data show about MICHAEL TREAT, PA?

Quality data not reported

NPI registry status

Active

Issued 02/04/2009

NPI 1558509117

Primary specialty

Surgical Physician Assistant

Mid-sized

16,119 US NPIs in this specialty

Medicare Part D claims

515 63% vs specialty avg

2023 prescription claims

Specialty avg: 316

Specialty distribution in Massachusetts

How Surgical Physician Assistant compares to other specialties among Massachusetts providers

Massachusetts providers

Surgical Physician Assistant share within Massachusetts

1. Surgical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Surgical Physician Assistant share within Massachusetts

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Surgical Physician Assistant) — 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).

MICHAEL TREAT, PA appears in the CMS NPPES registry as a Surgical Physician Assistant provider holding PA credentials at 123 SUMMER ST, WORCESTER, MA, 01608, with a listed phone of (508) 363-5000. NPI 1558509117 was issued on 02/04/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TREAT 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 515 prescription claims written by this provider, covering 275 Medicare beneficiaries and totaling roughly $142K in drug spend, split 18% brand-name and 82% 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.

Surgical Physician Assistant is a mid-sized specialty nationwide, with 16,119 enrolled providers across 54 states and an average of 316 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

123 SUMMER ST
WORCESTER, MA 01608

Provider Details

NPI 1558509117
Specialty Surgical Physician Assistant
Credentials PA
Gender Male
NPI Issued 02/04/2009

Hospital and facility affiliations

Facilities where MICHAEL TREAT, PA bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

LAHEY CLINIC INC
BURLINGTON, MA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 MICHAEL TREAT, PA. Source: openpaymentsdata.cms.gov.

Total received

$35

Largest payer

BIOTRONIK INC.

Most common payment type

Education

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 MICHAEL TREAT, PA. To verify MICHAEL TREAT, PA'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

MICHAEL TREAT, PA — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 515 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.

515
Total Claims
$142K
Total Drug Cost
275
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,136
Total Day Supply
33,490
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$114K
Generic Drug Cost
$28K

Patient Demographics

Average Patient Age
76.1 years
Avg HCC Risk Score
1.47
Gender Split
46% female / 54% male

Top Prescribed Drugs (Medicare Part D)

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

What MICHAEL TREAT, PA 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
Eliquis
Apixaban
68
Sotalol
Sotalol Hcl
65
Metoprolol Succinate
61
Dofetilide
44
Flecainide Acetate
37
Amiodarone Hcl
27
Omeprazole
24
Furosemide
19
Xarelto
Rivaroxaban
18
Losartan Potassium
16

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

Surgical Physician Assistant Overview

How MICHAEL TREAT, PA fits within the Surgical Physician Assistant landscape nationally.

16,119
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
316
Avg Claims per Provider

MICHAEL TREAT, PA's 515 claims are above the specialty average of 316.

Nearby Surgical Physician Assistant Providers in Massachusetts

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

Compare Surgical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHAEL TREAT, PA's specialty?
MICHAEL TREAT, PA specializes in Surgical Physician Assistant and practices in WORCESTER, Massachusetts. Credentials: PA.
How much does MICHAEL TREAT, PA prescribe under Medicare Part D?
In 2023, MICHAEL TREAT, PA wrote 515 Medicare Part D claims totaling $142K in drug costs for 275 beneficiaries.
Where is MICHAEL TREAT, PA located?
MICHAEL TREAT, PA is located at 123 SUMMER ST, WORCESTER, MA, 01608. Phone: (508) 363-5000.
What is MICHAEL TREAT, PA's NPI number?
MICHAEL TREAT, PA's National Provider Identifier (NPI) is 1558509117, issued on 02/04/2009.
Does MICHAEL TREAT, PA prescribe more brand-name or generic drugs?
MICHAEL TREAT, PA's prescribing is 18% brand-name and 82% generic drugs by claim count, with $114K in brand drug costs.
How many Surgical Physician Assistant providers are there in the US?
There are 16,119 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 316 Medicare Part D claims per year.
What drugs does MICHAEL TREAT, PA prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL TREAT, PA's most frequently prescribed drugs include Eliquis, Sotalol, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL TREAT, PA accept Medicare?
MICHAEL TREAT, PA appears in CMS Medicare data with 515 Part D claims and 275 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL TREAT, PA's credentials?
MICHAEL TREAT, PA's NPI is 1558509117 with credentials PA. 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