2026 NPPES data Primary Care Nurse Practitioner NPI 1740558402 NP
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ERIN RILEY, NP

Primary Care Nurse Practitioner in BROCKTON, 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
971
Medicare Part D claims · 266 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ERIN RILEY, NP filed 971 Medicare Part D claims in 2023 as a Primary Care Nurse Practitioner in BROCKTON, Massachusetts, prescribing 88% generic.

971
Part D claims, 2023
88%
generic prescribing

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.

ERIN RILEY, NP's Medicare Part D volume vs every U.S. prescriber

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

971 Top 25% higher than 75% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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 ERIN RILEY, NP?

Quality data not reported

NPI registry status

Active

Issued 12/09/2011

NPI 1740558402

Primary specialty

Primary Care Nurse Practitioner

Mid-sized

10,138 US NPIs in this specialty

Medicare Part D claims

971 29% vs specialty avg

2023 prescription claims

Specialty avg: 1,363

Specialty distribution in Massachusetts

How Primary Care Nurse Practitioner compares to other specialties among Massachusetts providers

Massachusetts providers

Primary Care Nurse Practitioner share within Massachusetts

1. Primary Care Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Primary Care Nurse Practitioner share within Massachusetts

Specialty board-certification context

Estimated specialty board-certified rate — Primary Care Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Primary Care Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Primary Care Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Primary Care Nurse Practitioner) — 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).

ERIN RILEY, NP is a Primary Care Nurse Practitioner provider practicing in BROCKTON, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: NP. NPI: 1740558402. 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.

ERIN RILEY, NP appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider holding NP credentials at VA BOSTON HEALTHCARE SYSTEM, BROCKTON, MA, 02301, with a listed phone of (800) 865-3384. NPI 1740558402 was issued on 12/09/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RILEY 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 971 prescription claims written by this provider, covering 266 Medicare beneficiaries and totaling roughly $119K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 2.4%. 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.

Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 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

VA BOSTON HEALTHCARE SYSTEM
BROCKTON, MA 02301

Provider Details

NPI 1740558402
Specialty Primary Care Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 12/09/2011

Hospital and facility affiliations

Facilities where ERIN RILEY, NP 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.

ATRIUS HEALTH INC
NORWOOD, 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 ERIN RILEY, NP. To verify ERIN RILEY, NP'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

ERIN RILEY, NP — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 971 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.

971
Total Claims
$119K
Total Drug Cost
266
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,961
Total Day Supply
55,172
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$97K
Generic Drug Cost
$21K
Opioid Claims
23 (2.4% rate)
Antibiotic Claims
49

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.18
Gender Split
44% female / 56% male
Age Distribution
<65: 24, 65-74: 140, 75-84: 75, 85+: 27

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
56
Lisinopril
56
Amlodipine Besylate
49
Trulicity
Dulaglutide
38
Metformin Hcl Er
Metformin Hcl
32
Gabapentin
31
Sertraline Hcl
29
Lorazepam
25
Rosuvastatin Calcium
24
Valsartan
21

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

Primary Care Nurse Practitioner Overview

How ERIN RILEY, NP fits within the Primary Care Nurse Practitioner landscape nationally.

10,138
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider

ERIN RILEY, NP's 971 claims are below the specialty average of 1,363.

Nearby Primary Care Nurse Practitioner Providers in Massachusetts

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

Compare Primary Care Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERIN RILEY, NP's specialty?
ERIN RILEY, NP specializes in Primary Care Nurse Practitioner and practices in BROCKTON, Massachusetts. Credentials: NP.
How much does ERIN RILEY, NP prescribe under Medicare Part D?
In 2023, ERIN RILEY, NP wrote 971 Medicare Part D claims totaling $119K in drug costs for 266 beneficiaries.
Where is ERIN RILEY, NP located?
ERIN RILEY, NP is located at VA BOSTON HEALTHCARE SYSTEM, BROCKTON, MA, 02301. Phone: (800) 865-3384.
What is ERIN RILEY, NP's NPI number?
ERIN RILEY, NP's National Provider Identifier (NPI) is 1740558402, issued on 12/09/2011.
Does ERIN RILEY, NP prescribe more brand-name or generic drugs?
ERIN RILEY, NP's prescribing is 12% brand-name and 88% generic drugs by claim count, with $97K in brand drug costs.
Does ERIN RILEY, NP prescribe opioids?
Yes, ERIN RILEY, NP had 23 opioid claims in 2023 with an opioid prescribing rate of 2.4%.
How many Primary Care Nurse Practitioner providers are there in the US?
There are 10,138 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does ERIN RILEY, NP prescribe most often?
Based on 2023 Medicare Part D data, ERIN RILEY, NP's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIN RILEY, NP accept Medicare?
ERIN RILEY, NP appears in CMS Medicare data with 971 Part D claims and 266 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIN RILEY, NP's credentials?
ERIN RILEY, NP's NPI is 1740558402 with credentials NP. 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