2026 NPPES data Physician Assistant NPI 1679162382
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Nathan Ribeiro

Physician Assistant in Fall River, 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
868
Medicare Part D claims · 301 beneficiaries · Physician Assistant avg: 790
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$539.97
31 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Nathan Ribeiro filed 868 Medicare Part D claims in 2023 as a Physician Assistant in Fall River, Massachusetts, prescribing 56% generic.

868
Part D claims, 2023
56%
generic prescribing
$539.97
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.

Nathan Ribeiro's Medicare Part D volume vs every U.S. prescriber

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

868 Top 27% higher than 73% 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 Nathan Ribeiro?

Quality data not reported

NPI registry status

Active

Issued 01/16/2021

NPI 1679162382

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

868 10% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Massachusetts

How Physician Assistant compares to other specialties among Massachusetts providers

Massachusetts providers

Physician Assistant share within Massachusetts

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

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).

Nathan Ribeiro appears in the CMS NPPES registry as a Physician Assistant provider at 19 FOSTER ST, Fall River, MA, 02721, with a listed phone of (508) 373-5607. NPI 1679162382 was issued on 01/16/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Ribeiro 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 868 prescription claims written by this provider, covering 301 Medicare beneficiaries and totaling roughly $280K in drug spend, split 44% brand-name and 56% 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.

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

19 FOSTER ST
Fall River, MA 02721

Provider Details

NPI 1679162382
Specialty Physician Assistant
Gender Male
NPI Issued 01/16/2021

Hospital and facility affiliations

Facilities where Nathan Ribeiro 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.

Bristol Pulmonary And Sleep Medicine P.C.
Taunton, MA
Southcoast Physicians Group Inc
Fall River, 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 Nathan Ribeiro. Source: openpaymentsdata.cms.gov.

Total received

$540

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Food and Beverage

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 Nathan Ribeiro. To verify Nathan Ribeiro'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 · Above average

Nathan Ribeiro — brand share 44.0%
Specialty average (est.)

44% brand-name claims vs 56% generic, on 868 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.

868
Total Claims
$280K
Total Drug Cost
301
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,314
Total Day Supply
33,250
Brand vs Generic
44% brand / 56% generic
Brand Drug Cost
$266K
Generic Drug Cost
$15K
Antibiotic Claims
118

Patient Demographics

Average Patient Age
70.3 years
Avg HCC Risk Score
1.63
Gender Split
61% female / 39% male
Age Distribution
<65: 67, 65-74: 118, 75-84: 95, 85+: 21

Top Prescribed Drugs (Medicare Part D)

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

What Nathan Ribeiro 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
Prednisone
130
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
114
Albuterol Sulfate Hfa
Albuterol Sulfate
103
Cefpodoxime Proxetil
51
Fluticasone Propionate
45
Ventolin Hfa
Albuterol Sulfate
38
Doxycycline Hyclate
25
Symbicort
Budesonide/Formoterol Fumarate
23
Montelukast Sodium
21
Advair Diskus
Fluticasone Propion/Salmeterol
20

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

Physician Assistant Overview

How Nathan Ribeiro fits within the Physician Assistant landscape nationally.

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

Nathan Ribeiro's 868 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in Massachusetts

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Massachusetts medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Nathan Ribeiro's specialty?
Nathan Ribeiro specializes in Physician Assistant and practices in Fall River, Massachusetts.
How much does Nathan Ribeiro prescribe under Medicare Part D?
In 2023, Nathan Ribeiro wrote 868 Medicare Part D claims totaling $280K in drug costs for 301 beneficiaries.
Where is Nathan Ribeiro located?
Nathan Ribeiro is located at 19 FOSTER ST, Fall River, MA, 02721. Phone: (508) 373-5607.
What is Nathan Ribeiro's NPI number?
Nathan Ribeiro's National Provider Identifier (NPI) is 1679162382, issued on 01/16/2021.
Does Nathan Ribeiro prescribe more brand-name or generic drugs?
Nathan Ribeiro's prescribing is 44% brand-name and 56% generic drugs by claim count, with $266K in brand drug costs.
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 Nathan Ribeiro prescribe most often?
Based on 2023 Medicare Part D data, Nathan Ribeiro's most frequently prescribed drugs include Prednisone, Trelegy Ellipta, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nathan Ribeiro accept Medicare?
Nathan Ribeiro appears in CMS Medicare data with 868 Part D claims and 301 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nathan Ribeiro's credentials?
Nathan Ribeiro's NPI is 1679162382. 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