2026 NPPES data Physician Assistant NPI 1609361252 PA-C
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PATRICIA GANDASETIAWAN, PA-C

Physician Assistant in BREA, 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
896
Medicare Part D claims · 498 beneficiaries · Physician Assistant avg: 790
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$50.86
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

PATRICIA GANDASETIAWAN, PA-C filed 896 Medicare Part D claims in 2023 as a Physician Assistant in BREA, California, prescribing 89% generic.

896
Part D claims, 2023
89%
generic prescribing
$50.86
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.

PATRICIA GANDASETIAWAN, PA-C's Medicare Part D volume vs every U.S. prescriber

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

896 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 PATRICIA GANDASETIAWAN, PA-C?

Quality data not reported

NPI registry status

Active

Issued 06/26/2018

NPI 1609361252

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

896 13% 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).

PATRICIA GANDASETIAWAN, PA-C is a Physician Assistant provider practicing in BREA, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1609361252. 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.

PATRICIA GANDASETIAWAN, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 955 W IMPERIAL HWY STE 110, BREA, CA, 92821, with a listed phone of (714) 449-6900. NPI 1609361252 was issued on 06/26/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GANDASETIAWAN 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 896 prescription claims written by this provider, covering 498 Medicare beneficiaries and totaling roughly $28K in drug spend, split 11% brand-name and 89% 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

955 W IMPERIAL HWY STE 110
BREA, CA 92821

Provider Details

NPI 1609361252
Specialty Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 06/26/2018

Hospital and facility affiliations

Facilities where PATRICIA GANDASETIAWAN, PA-C 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.

PROVIDENCE MEDICAL FOUNDATION
FULLERTON, 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 PATRICIA GANDASETIAWAN, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$51

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 PATRICIA GANDASETIAWAN, PA-C. To verify PATRICIA GANDASETIAWAN, PA-C'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

PATRICIA GANDASETIAWAN, PA-C — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 896 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.

896
Total Claims
$28K
Total Drug Cost
498
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,225
Total Day Supply
25,566
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$17K
Generic Drug Cost
$10K
Antibiotic Claims
238

Patient Demographics

Average Patient Age
76.1 years
Avg HCC Risk Score
1.36
Gender Split
68% female / 32% male
Age Distribution
<65: 17, 65-74: 208, 75-84: 193, 85+: 80

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Azithromycin
79
Albuterol Sulfate Hfa
Albuterol Sulfate
50
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
42
Methylprednisolone
40
Doxycycline Hyclate
34
Mupirocin
34
Paxlovid (Eua)
Nirmatrelvir/Ritonavir
34
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
27
Triamcinolone Acetonide
26
Ibuprofen
25

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

Physician Assistant Overview

How PATRICIA GANDASETIAWAN, PA-C fits within the Physician Assistant landscape nationally.

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

PATRICIA GANDASETIAWAN, PA-C's 896 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 GANDASETIAWAN.

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

Frequently Asked Questions

What is PATRICIA GANDASETIAWAN, PA-C's specialty?
PATRICIA GANDASETIAWAN, PA-C specializes in Physician Assistant and practices in BREA, California. Credentials: PA-C.
How much does PATRICIA GANDASETIAWAN, PA-C prescribe under Medicare Part D?
In 2023, PATRICIA GANDASETIAWAN, PA-C wrote 896 Medicare Part D claims totaling $28K in drug costs for 498 beneficiaries.
Where is PATRICIA GANDASETIAWAN, PA-C located?
PATRICIA GANDASETIAWAN, PA-C is located at 955 W IMPERIAL HWY STE 110, BREA, CA, 92821. Phone: (714) 449-6900.
What is PATRICIA GANDASETIAWAN, PA-C's NPI number?
PATRICIA GANDASETIAWAN, PA-C's National Provider Identifier (NPI) is 1609361252, issued on 06/26/2018.
Does PATRICIA GANDASETIAWAN, PA-C prescribe more brand-name or generic drugs?
PATRICIA GANDASETIAWAN, PA-C's prescribing is 11% brand-name and 89% generic drugs by claim count, with $17K 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 PATRICIA GANDASETIAWAN, PA-C prescribe most often?
Based on 2023 Medicare Part D data, PATRICIA GANDASETIAWAN, PA-C's most frequently prescribed drugs include Azithromycin, Albuterol Sulfate Hfa, Nitrofurantoin Mono-Macro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PATRICIA GANDASETIAWAN, PA-C accept Medicare?
PATRICIA GANDASETIAWAN, PA-C appears in CMS Medicare data with 896 Part D claims and 498 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PATRICIA GANDASETIAWAN, PA-C's credentials?
PATRICIA GANDASETIAWAN, PA-C's NPI is 1609361252 with credentials PA-C. 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