2026 NPPES data Family Medicine Physician NPI 1528564432 FNP
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SAMANTHA CHALMERS, FNP

Family Medicine Physician in QUINCY, 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
135
Medicare Part D claims · 100 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

SAMANTHA CHALMERS, FNP filed 135 Medicare Part D claims in 2023 as a Family Medicine Physician in QUINCY, Massachusetts, prescribing 86% generic.

135
Part D claims, 2023
86%
generic prescribing
Likely
board-certified (heuristic)

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.

SAMANTHA CHALMERS, FNP's Medicare Part D volume vs every U.S. prescriber

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

135 35th percentile higher than 35% 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 certification likely (heuristic — not verified)

SAMANTHA CHALMERS, FNP practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about SAMANTHA CHALMERS, FNP?

Quality data not reported

NPI registry status

Active

Issued 04/01/2018

NPI 1528564432

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

135 96% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Massachusetts

How Family Medicine Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Family Medicine Physician share within Massachusetts

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

Specialty board-certification context

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

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

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

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

SAMANTHA CHALMERS, FNP appears in the CMS NPPES registry as a Family Medicine Physician provider holding FNP credentials at 626 SOUTHERN ARTERY, QUINCY, MA, 02169, with a listed phone of (866) 389-2722. NPI 1528564432 was issued on 04/01/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHALMERS 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 135 prescription claims written by this provider, covering 100 Medicare beneficiaries and totaling roughly $2K in drug spend, split 14% brand-name and 86% 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

626 SOUTHERN ARTERY
QUINCY, MA 02169

Provider Details

NPI 1528564432
Specialty Family Medicine Physician
Credentials FNP
Gender Female
NPI Issued 04/01/2018

Hospital and facility affiliations

Facilities where SAMANTHA CHALMERS, FNP 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.

MC MEDICAL GROUP OF DC, PC
WASHINGTON, DC
MINUTECLINIC DIAGNOSTIC OF MASSACHUSETTS, LLC
MEDWAY, 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).

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 SAMANTHA CHALMERS, FNP. To verify SAMANTHA CHALMERS, FNP'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

SAMANTHA CHALMERS, FNP — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 135 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.

135
Total Claims
$2K
Total Drug Cost
100
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
139
Total Day Supply
1,595
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$628
Generic Drug Cost
$1K
Antibiotic Claims
57

Patient Demographics

Average Patient Age
65.6 years
Avg HCC Risk Score
0.85
Gender Split
77% female / 23% male
Age Distribution
<65: 22, 65-74: 63, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What SAMANTHA CHALMERS, FNP 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
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
25
Paxlovid (Eua)
Nirmatrelvir/Ritonavir
14
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
12

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

Family Medicine Physician Overview

How SAMANTHA CHALMERS, FNP fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

SAMANTHA CHALMERS, FNP's 135 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Massachusetts

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SAMANTHA CHALMERS, FNP's specialty?
SAMANTHA CHALMERS, FNP specializes in Family Medicine Physician and practices in QUINCY, Massachusetts. Credentials: FNP.
How much does SAMANTHA CHALMERS, FNP prescribe under Medicare Part D?
In 2023, SAMANTHA CHALMERS, FNP wrote 135 Medicare Part D claims totaling $2K in drug costs for 100 beneficiaries.
Where is SAMANTHA CHALMERS, FNP located?
SAMANTHA CHALMERS, FNP is located at 626 SOUTHERN ARTERY, QUINCY, MA, 02169. Phone: (866) 389-2722.
What is SAMANTHA CHALMERS, FNP's NPI number?
SAMANTHA CHALMERS, FNP's National Provider Identifier (NPI) is 1528564432, issued on 04/01/2018.
Does SAMANTHA CHALMERS, FNP prescribe more brand-name or generic drugs?
SAMANTHA CHALMERS, FNP's prescribing is 14% brand-name and 86% generic drugs by claim count, with $628 in brand drug costs.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does SAMANTHA CHALMERS, FNP prescribe most often?
Based on 2023 Medicare Part D data, SAMANTHA CHALMERS, FNP's most frequently prescribed drugs include Amoxicillin-Clavulanate Potass, Paxlovid (Eua), Nitrofurantoin Mono-Macro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SAMANTHA CHALMERS, FNP accept Medicare?
SAMANTHA CHALMERS, FNP appears in CMS Medicare data with 135 Part D claims and 100 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SAMANTHA CHALMERS, FNP's credentials?
SAMANTHA CHALMERS, FNP's NPI is 1528564432 with credentials FNP. 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