2026 NPPES data Medical Physician Assistant NPI 1558417758 PHYSICIAN ASSISTANT
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David Rivera, PHYSICIAN ASSISTANT

Medical Physician Assistant in Bronx, New York.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,580 in Medical Physician Assistant, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 126 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
83%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$258.78
9 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

David Rivera, PHYSICIAN ASSISTANT filed 1,216 Medicare Part D claims in 2023 as a Medical Physician Assistant in Bronx, New York, prescribing 83% generic.

1K
Part D claims, 2023
83%
generic prescribing
$258.78
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.

David Rivera, PHYSICIAN ASSISTANT's Medicare Part D volume vs every U.S. prescriber

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

1,216 Top 22% higher than 78% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). This entry sits in this band. 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. 2K+: 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 David Rivera, PHYSICIAN ASSISTANT?

Quality data not reported

NPI registry status

Active

Issued 01/28/2007

NPI 1558417758

Primary specialty

Medical Physician Assistant

Mid-sized

40,580 US NPIs in this specialty

Medicare Part D claims

1,216 13% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in New York

How Medical Physician Assistant compares to other specialties among New York providers

New York providers
Student in an Organized Heal…7.8%Registered Nurse5.2%Clinical Social Worker4.9%Social Worker4.5%Speech-Language Pathologist4.5%Licensed Practical Nurse4.3%Medical Physician Assistant0.7%
Largest specialties in New York (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Medical Physician Assistant. Verify directly:

How MIPS and board certification work

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).

David Rivera, PHYSICIAN ASSISTANT appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PHYSICIAN ASSISTANT credentials at 3485 E TREMONT AVE STE 1B, Bronx, NY, 10465, with a listed phone of (718) 828-1549. NPI 1558417758 was issued on 01/28/2007.

Medicare Part D records for calendar year 2023 show 1,216 prescription claims written by this provider, covering 126 Medicare beneficiaries and totaling roughly $154K in drug spend, split 14% brand-name and 83% generic by claim count.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,580 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

3485 E TREMONT AVE STE 1B
Bronx, NY 10465

Provider Details

NPI 1558417758
Specialty Medical Physician Assistant
Credentials PHYSICIAN ASSISTANT
Gender Male
NPI Issued 01/28/2007

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 David Rivera, PHYSICIAN ASSISTANT. Source: openpaymentsdata.cms.gov.

Total received

$259

Largest payer

Exact Sciences Corporation

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 - New York NYSBPMC 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 ~100K New York medical licensees in 2023 - they are NOT specific to David Rivera, PHYSICIAN ASSISTANT. To verify David Rivera, PHYSICIAN ASSISTANT's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC 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 New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

David Rivera, PHYSICIAN ASSISTANT - brand share 14.0%
Medical Physician Assistant average

14% brand-name claims vs 83% generic, on 1,216 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.

1,216
Total Claims
$154K
Total Drug Cost
126
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,282
Total Day Supply
66,368
Brand vs Generic
14% brand / 83% generic
Brand Drug Cost
$136K
Generic Drug Cost
$17K
Antibiotic Claims
31

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
1.40
Gender Split
59% female / 41% male

Top Prescribed Drugs (Medicare Part D)

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

What David Rivera, PHYSICIAN ASSISTANT 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
Atorvastatin Calcium
99
Metformin Hcl
83
Omeprazole
48
Losartan Potassium
45
Amlodipine Besylate
41
Albuterol Sulfate Hfa
Albuterol Sulfate
38
Losartan-Hydrochlorothiazide
Losartan/Hydrochlorothiazide
34
Alendronate Sodium
32
Gabapentin
26
Lisinopril
26

* 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 David Rivera, PHYSICIAN ASSISTANT fits within the Medical Physician Assistant landscape nationally.

40,580
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

David Rivera, PHYSICIAN ASSISTANT's 1,216 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Rivera.

Compare Medical 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 New York medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Medical 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 David Rivera, PHYSICIAN ASSISTANT's specialty?
David Rivera, PHYSICIAN ASSISTANT specializes in Medical Physician Assistant and practices in Bronx, New York. Credentials: PHYSICIAN ASSISTANT.
How much does David Rivera, PHYSICIAN ASSISTANT prescribe under Medicare Part D?
In 2023, David Rivera, PHYSICIAN ASSISTANT wrote 1,216 Medicare Part D claims totaling $154K in drug costs for 126 beneficiaries.
Where is David Rivera, PHYSICIAN ASSISTANT located?
David Rivera, PHYSICIAN ASSISTANT is located at 3485 E TREMONT AVE STE 1B, Bronx, NY, 10465. Phone: (718) 828-1549.
What is David Rivera, PHYSICIAN ASSISTANT's NPI number?
David Rivera, PHYSICIAN ASSISTANT's National Provider Identifier (NPI) is 1558417758, issued on 01/28/2007.
Does David Rivera, PHYSICIAN ASSISTANT prescribe more brand-name or generic drugs?
David Rivera, PHYSICIAN ASSISTANT's prescribing is 14% brand-name and 83% generic drugs by claim count, with $136K in brand drug costs.
How many Medical Physician Assistant providers are there in the US?
There are 40,580 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 David Rivera, PHYSICIAN ASSISTANT prescribe most often?
Based on 2023 Medicare Part D data, David Rivera, PHYSICIAN ASSISTANT's most frequently prescribed drugs include Atorvastatin Calcium, Metformin Hcl, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Rivera, PHYSICIAN ASSISTANT accept Medicare?
David Rivera, PHYSICIAN ASSISTANT appears in CMS Medicare data with 1,216 Part D claims and 126 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Rivera, PHYSICIAN ASSISTANT's credentials?
David Rivera, PHYSICIAN ASSISTANT's NPI is 1558417758 with credentials PHYSICIAN ASSISTANT. 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

View source datasets and methodology notes
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

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.