NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1053654640 PA
Verify on CMS → Katherine Chin, PA
Medical Physician Assistant in Los Angeles, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,527 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
217
Medicare Part D claims · 184 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
56%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$25.06
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Katherine Chin, PA filed 217 Medicare Part D claims in 2023 as a Medical Physician Assistant in Los Angeles, California, prescribing 56% generic.
- 217
- Part D claims, 2023
- 56%
- generic prescribing
- $25.06
- 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.
Katherine Chin, PA's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
217 49th percentile higher than 49% of 1,370,886 prescribers
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 Katherine Chin, PA?
Quality data not reportedPrimary specialty
Medical Physician Assistant
Medicare Part D claims
217 80% vs specialty avg
Specialty distribution in California
How Medical Physician Assistant compares to other specialties among California 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).
Katherine Chin, PA appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA credentials at 615 S ATLANTIC BLVD, Los Angeles, CA, 90022, with a listed phone of (323) 881-9620. NPI 1053654640 was issued on 04/02/2013.
Medicare Part D records for calendar year 2023 show 217 prescription claims written by this provider, covering 184 Medicare beneficiaries and totaling roughly $5K in drug spend, split 18% brand-name and 56% generic by claim count.
Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 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
Provider Details
| NPI | 1053654640 |
|---|---|
| Specialty | Medical Physician Assistant |
| Credentials | PA |
| Gender | Female |
| NPI Issued | 04/02/2013 |
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 Katherine Chin, PA. Source: openpaymentsdata.cms.gov.
Total received
$25
Largest payer
Abbott Laboratories
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 Katherine Chin, PA. To verify Katherine Chin, PA'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
Katherine Chin, PA - brand share 18.0%
Medical Physician Assistant average
18% brand-name claims vs 56% generic, on 217 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.
217
Total Claims
$5K
Total Drug Cost
184
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 239
- Total Day Supply
- 3,609
- Brand vs Generic
- 18% brand / 56% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $2K
- Antibiotic Claims
- 55
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 0.87
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 11, 65-74: 99, 75-84: 63, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Katherine Chin, PA prescribes most
Top Medicare Part D drugs by claim count, 2023
- Paxlovid (Eua)
Paxlovid (Eua)
55 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
34 claims
- Azithromycin 19
Azithromycin
19 claims
- Cephalexin 17
Cephalexin
17 claims
- Prednisone 15
Prednisone
15 claims
- Amoxicillin-Clavul… 11
Amoxicillin-Clavulanate Potass
11 claims
| Drug | Claims |
|---|---|
| Paxlovid (Eua) Nirmatrelvir/Ritonavir | 55 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 34 |
| Azithromycin | 19 |
| Cephalexin | 17 |
| Prednisone | 15 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 11 |
* 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 Katherine Chin, PA fits within the Medical Physician Assistant landscape nationally.
40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider
Katherine Chin, PA's 217 claims are below the specialty average of 1,077.
Nearby Medical Physician Assistant Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Chin.
Dr. Bridget Abajian
PA-C
Los Angeles, CA
Dr. Crispin Abbott
PHYSICIAN ASSISTANT
Thousand Oaks, CA
Dr. Abdol Hamid Abdali Hajiabadi
P.A.
Santa Ana, CA
Dr. Jilbert Abnoosian
PA
Lynwood, CA
Dr. Sakina Abowath
P.A.
Diamond Bar, CA
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 California 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.
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Frequently Asked Questions
What is Katherine Chin, PA's specialty? ▼
Katherine Chin, PA specializes in Medical Physician Assistant and practices in Los Angeles, California. Credentials: PA.
How much does Katherine Chin, PA prescribe under Medicare Part D? ▼
In 2023, Katherine Chin, PA wrote 217 Medicare Part D claims totaling $5K in drug costs for 184 beneficiaries.
Where is Katherine Chin, PA located? ▼
Katherine Chin, PA is located at 615 S ATLANTIC BLVD, Los Angeles, CA, 90022. Phone: (323) 881-9620.
What is Katherine Chin, PA's NPI number? ▼
Katherine Chin, PA's National Provider Identifier (NPI) is 1053654640, issued on 04/02/2013.
Does Katherine Chin, PA prescribe more brand-name or generic drugs? ▼
Katherine Chin, PA's prescribing is 18% brand-name and 56% generic drugs by claim count, with $2K in brand drug costs.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,527 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 Katherine Chin, PA prescribe most often? ▼
Based on 2023 Medicare Part D data, Katherine Chin, PA's most frequently prescribed drugs include Paxlovid (Eua), Albuterol Sulfate Hfa, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Katherine Chin, PA accept Medicare? ▼
Katherine Chin, PA appears in CMS Medicare data with 217 Part D claims and 184 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katherine Chin, PA's credentials? ▼
Katherine Chin, PA's NPI is 1053654640 with credentials PA. 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 PlainDoctor editorial team.