2026 NPPES data Physician Assistant NPI 1669554705 PA PHYSICIAN ASSISTA
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SAUL DE LA ROSA, PA PHYSICIAN ASSISTA

Physician Assistant in LOS ANGELES, California. 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
2K
Medicare Part D claims · 353 beneficiaries · Physician Assistant avg: 790
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$81.95
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SAUL DE LA ROSA, PA PHYSICIAN ASSISTA filed 2,071 Medicare Part D claims in 2023 as a Physician Assistant in LOS ANGELES, California, prescribing 89% generic.

2K
Part D claims, 2023
89%
generic prescribing
$81.95
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.

SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's Medicare Part D volume vs every U.S. prescriber

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

2,071 Top 16% higher than 84% 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%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 SAUL DE LA ROSA, PA PHYSICIAN ASSISTA?

Quality data not reported

NPI registry status

Active

Issued 10/19/2006

NPI 1669554705

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

2,071 162% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in California

How Physician Assistant compares to other specialties among California providers

California providers

Physician Assistant share within California

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

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).

SAUL DE LA ROSA, PA PHYSICIAN ASSISTA appears in the CMS NPPES registry as a Physician Assistant provider holding PA PHYSICIAN ASSISTA credentials at 1414 E FLORENCE AVE, LOS ANGELES, CA, 90001, with a listed phone of (323) 588-1383. NPI 1669554705 was issued on 10/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DE LA ROSA 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 2,071 prescription claims written by this provider, covering 353 Medicare beneficiaries and totaling roughly $231K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 0.5%. 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

1414 E FLORENCE AVE
LOS ANGELES, CA 90001

Provider Details

NPI 1669554705
Specialty Physician Assistant
Credentials PA PHYSICIAN ASSISTA
Gender Male
NPI Issued 10/19/2006

Hospital and facility affiliations

Facilities where SAUL DE LA ROSA, PA PHYSICIAN ASSISTA 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.

ZACOALCO MEDICAL GROUP INC
LOS ANGELES, CA
ZACOALCO URGENT CARE CENTER INC
LOS ANGELES, CA

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 SAUL DE LA ROSA, PA PHYSICIAN ASSISTA. Source: openpaymentsdata.cms.gov.

Total received

$82

Largest payer

Lilly USA, LLC

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 — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to SAUL DE LA ROSA, PA PHYSICIAN ASSISTA. To verify SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

SAUL DE LA ROSA, PA PHYSICIAN ASSISTA — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 2,071 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.

2,071
Total Claims
$231K
Total Drug Cost
353
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,831
Total Day Supply
138,867
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$177K
Generic Drug Cost
$53K
Opioid Claims
11 (0.5% rate)
Antibiotic Claims
145

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
1.27
Gender Split
60% female / 40% male
Age Distribution
<65: 38, 65-74: 186, 75-84: 95, 85+: 34

Top Prescribed Drugs (Medicare Part D)

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

What SAUL DE LA ROSA, PA PHYSICIAN ASSISTA 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
Hydrochlorothiazide
94
Metformin Hcl
91
Lisinopril
88
Atorvastatin Calcium
79
Amlodipine Besylate
77
Azithromycin
76
Montelukast Sodium
74
Tamsulosin Hcl
65
Losartan Potassium
60
Gemfibrozil
59

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

Physician Assistant Overview

How SAUL DE LA ROSA, PA PHYSICIAN ASSISTA fits within the Physician Assistant landscape nationally.

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

SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's 2,071 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as DE LA ROSA.

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

Frequently Asked Questions

What is SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's specialty?
SAUL DE LA ROSA, PA PHYSICIAN ASSISTA specializes in Physician Assistant and practices in LOS ANGELES, California. Credentials: PA PHYSICIAN ASSISTA.
How much does SAUL DE LA ROSA, PA PHYSICIAN ASSISTA prescribe under Medicare Part D?
In 2023, SAUL DE LA ROSA, PA PHYSICIAN ASSISTA wrote 2,071 Medicare Part D claims totaling $231K in drug costs for 353 beneficiaries.
Where is SAUL DE LA ROSA, PA PHYSICIAN ASSISTA located?
SAUL DE LA ROSA, PA PHYSICIAN ASSISTA is located at 1414 E FLORENCE AVE, LOS ANGELES, CA, 90001. Phone: (323) 588-1383.
What is SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's NPI number?
SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's National Provider Identifier (NPI) is 1669554705, issued on 10/19/2006.
Does SAUL DE LA ROSA, PA PHYSICIAN ASSISTA prescribe more brand-name or generic drugs?
SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's prescribing is 11% brand-name and 89% generic drugs by claim count, with $177K in brand drug costs.
Does SAUL DE LA ROSA, PA PHYSICIAN ASSISTA prescribe opioids?
Yes, SAUL DE LA ROSA, PA PHYSICIAN ASSISTA had 11 opioid claims in 2023 with an opioid prescribing rate of 0.5%.
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 SAUL DE LA ROSA, PA PHYSICIAN ASSISTA prescribe most often?
Based on 2023 Medicare Part D data, SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's most frequently prescribed drugs include Hydrochlorothiazide, Metformin Hcl, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SAUL DE LA ROSA, PA PHYSICIAN ASSISTA accept Medicare?
SAUL DE LA ROSA, PA PHYSICIAN ASSISTA appears in CMS Medicare data with 2,071 Part D claims and 353 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's credentials?
SAUL DE LA ROSA, PA PHYSICIAN ASSISTA's NPI is 1669554705 with credentials PA PHYSICIAN ASSISTA. 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