2026 NPPES data Medical Physician Assistant NPI 1538123302 PA
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JACQUELINE FREY, PA

Medical Physician Assistant in CHELMSFORD, 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
451
Medicare Part D claims · 177 beneficiaries · Medical Physician Assistant avg: 1K

What the federal data shows

JACQUELINE FREY, PA filed 451 Medicare Part D claims in 2023 as a Medical Physician Assistant in CHELMSFORD, Massachusetts.

451
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.

JACQUELINE FREY, PA's Medicare Part D volume vs every U.S. prescriber

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

451 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 JACQUELINE FREY, PA?

Quality data not reported

NPI registry status

Active

Issued 04/17/2006

NPI 1538123302

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

451 58% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Massachusetts

How Medical Physician Assistant compares to other specialties among Massachusetts providers

Massachusetts providers

Medical Physician Assistant share within Massachusetts

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

Specialty board-certification context

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

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

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

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

JACQUELINE FREY, PA appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA credentials at 228 BILLERICA RD, CHELMSFORD, MA, 01824, with a listed phone of (978) 250-6100. NPI 1538123302 was issued on 04/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FREY 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 451 prescription claims written by this provider, covering 177 Medicare beneficiaries and totaling roughly $36K 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

228 BILLERICA RD
CHELMSFORD, MA 01824

Provider Details

NPI 1538123302
Specialty Medical Physician Assistant
Credentials PA
Gender Female
NPI Issued 04/17/2006

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 JACQUELINE FREY, PA. To verify JACQUELINE FREY, 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.

Medicare Part D Prescribing Data

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

451
Total Claims
$36K
Total Drug Cost
177
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
966
Total Day Supply
27,680
Generic Drug Cost
$9K
Antibiotic Claims
21

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.43
Gender Split
66% female / 34% male
Age Distribution
<65: 31, 65-74: 74, 75-84: 47, 85+: 25

Top Prescribed Drugs (Medicare Part D)

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

What JACQUELINE FREY, 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
Amlodipine Besylate
25
Citalopram Hbr
Citalopram Hydrobromide
24
Lisinopril
23
Escitalopram Oxalate
20
Gabapentin
20
Metformin Hcl Er
Metformin Hcl
19
Sertraline Hcl
16
Fluoxetine Hcl
13
Lorazepam
13
Atorvastatin Calcium
12

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

Medical Physician Assistant Overview

How JACQUELINE FREY, PA fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

JACQUELINE FREY, PA's 451 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Massachusetts

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

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

Frequently Asked Questions

What is JACQUELINE FREY, PA's specialty?
JACQUELINE FREY, PA specializes in Medical Physician Assistant and practices in CHELMSFORD, Massachusetts. Credentials: PA.
How much does JACQUELINE FREY, PA prescribe under Medicare Part D?
In 2023, JACQUELINE FREY, PA wrote 451 Medicare Part D claims totaling $36K in drug costs for 177 beneficiaries.
Where is JACQUELINE FREY, PA located?
JACQUELINE FREY, PA is located at 228 BILLERICA RD, CHELMSFORD, MA, 01824. Phone: (978) 250-6100.
What is JACQUELINE FREY, PA's NPI number?
JACQUELINE FREY, PA's National Provider Identifier (NPI) is 1538123302, issued on 04/17/2006.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does JACQUELINE FREY, PA prescribe most often?
Based on 2023 Medicare Part D data, JACQUELINE FREY, PA's most frequently prescribed drugs include Amlodipine Besylate, Citalopram Hbr, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JACQUELINE FREY, PA accept Medicare?
JACQUELINE FREY, PA appears in CMS Medicare data with 451 Part D claims and 177 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JACQUELINE FREY, PA's credentials?
JACQUELINE FREY, PA's NPI is 1538123302 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