2026 NPPES data Physician Assistant NPI 1487222188 PA-C
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MALYSSA CHANTHASOTO, PA-C

Physician Assistant in ROCKY HILL, Connecticut. 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
456
Medicare Part D claims · 339 beneficiaries · Physician Assistant avg: 790

What the federal data shows

MALYSSA CHANTHASOTO, PA-C filed 456 Medicare Part D claims in 2023 as a Physician Assistant in ROCKY HILL, Connecticut.

456
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.

MALYSSA CHANTHASOTO, PA-C's Medicare Part D volume vs every U.S. prescriber

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

456 Top 38% higher than 62% 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 MALYSSA CHANTHASOTO, PA-C?

Quality data not reported

NPI registry status

Active

Issued 06/17/2021

NPI 1487222188

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

456 42% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Connecticut

How Physician Assistant compares to other specialties among Connecticut providers

Connecticut providers

Physician Assistant share within Connecticut

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

Specialty board-certification context

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

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

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

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

MALYSSA CHANTHASOTO, PA-C is a Physician Assistant provider practicing in ROCKY HILL, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1487222188. 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.

MALYSSA CHANTHASOTO, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 1111 CROMWELL AVE STE 404, ROCKY HILL, CT, 06067, with a listed phone of (860) 525-4469. NPI 1487222188 was issued on 06/17/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHANTHASOTO 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 456 prescription claims written by this provider, covering 339 Medicare beneficiaries and totaling roughly $4K in drug spend, with an opioid prescribing rate of 11.2%. 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.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

1111 CROMWELL AVE STE 404
ROCKY HILL, CT 06067

Provider Details

NPI 1487222188
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 06/17/2021

Hospital and facility affiliations

Facilities where MALYSSA CHANTHASOTO, PA-C 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.

MCLEAN FUND
SIMSBURY, CT
ORTHOPEDIC SURGICAL PARTNERS, P.C.
ROCKY HILL, CT

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

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

456
Total Claims
$4K
Total Drug Cost
339
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
463
Total Day Supply
6,599
Generic Drug Cost
$4K
Opioid Claims
51 (11.2% rate)
Antibiotic Claims
31

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
1.03
Gender Split
63% female / 37% male
Age Distribution
<65: 25, 65-74: 156, 75-84: 128, 85+: 30

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Methylprednisolone
145
Meloxicam
76
Diclofenac Sodium
74
Methocarbamol
36
Tramadol Hcl
24
Amoxicillin
20
Oxycodone Hcl
11

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

Physician Assistant Overview

How MALYSSA CHANTHASOTO, PA-C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

MALYSSA CHANTHASOTO, PA-C's 456 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Connecticut

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

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

Frequently Asked Questions

What is MALYSSA CHANTHASOTO, PA-C's specialty?
MALYSSA CHANTHASOTO, PA-C specializes in Physician Assistant and practices in ROCKY HILL, Connecticut. Credentials: PA-C.
How much does MALYSSA CHANTHASOTO, PA-C prescribe under Medicare Part D?
In 2023, MALYSSA CHANTHASOTO, PA-C wrote 456 Medicare Part D claims totaling $4K in drug costs for 339 beneficiaries.
Where is MALYSSA CHANTHASOTO, PA-C located?
MALYSSA CHANTHASOTO, PA-C is located at 1111 CROMWELL AVE STE 404, ROCKY HILL, CT, 06067. Phone: (860) 525-4469.
What is MALYSSA CHANTHASOTO, PA-C's NPI number?
MALYSSA CHANTHASOTO, PA-C's National Provider Identifier (NPI) is 1487222188, issued on 06/17/2021.
Does MALYSSA CHANTHASOTO, PA-C prescribe opioids?
Yes, MALYSSA CHANTHASOTO, PA-C had 51 opioid claims in 2023 with an opioid prescribing rate of 11.2%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does MALYSSA CHANTHASOTO, PA-C prescribe most often?
Based on 2023 Medicare Part D data, MALYSSA CHANTHASOTO, PA-C's most frequently prescribed drugs include Methylprednisolone, Meloxicam, Diclofenac Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MALYSSA CHANTHASOTO, PA-C accept Medicare?
MALYSSA CHANTHASOTO, PA-C appears in CMS Medicare data with 456 Part D claims and 339 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MALYSSA CHANTHASOTO, PA-C's credentials?
MALYSSA CHANTHASOTO, PA-C's NPI is 1487222188 with credentials PA-C. 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