NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1003325853 PA-C
Verify on CMS → Chialin Lee, PA-C
Physician Assistant in San Francisco, 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 150,974 in 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
121
Medicare Part D claims · 57 beneficiaries · Physician Assistant avg: 790
Generic prescribing
72%
generic claims · 28% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
Industry payments
$120.19
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Chialin Lee, PA-C reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 121 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 121
- Part D claims, 2023
- 72%
- generic prescribing
- $120.19
- 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.
CMS NPPES provider registry desk
NPI 1003325853 · Physician Assistant
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-ELITE · RX-LIGHT · BOOK-MID · PHOTO-FINISH
- NPI-10 1003325853
- ENUM-RECENT 2017
- TAX-MEGA 151K Physician Assistant
- MIPS-ELITE 100/100
- RX-LIGHT 121
- BOOK-MID 13,402 in California
- PHOTO-FINISH Traci Aaron · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Lee · this provi…
Lee · this provider
100 MIPS pts
- Hayley Absher · …
Hayley Absher
100 MIPS pts
- Traci Aaron · near
Traci Aaron
100 MIPS pts
- Jonathan Abayev …
Jonathan Abayev
100 MIPS pts
- Evan Abramsky · …
Evan Abramsky
100 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Chialin Lee, PA-C's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
100 ≥ 92nd percentile 92% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Chialin Lee, PA-C sits
This provider among physician assistant peers
Across the 26,497 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Chialin Lee, PA-C writes more Part D claims than 31% of them and scores higher on MIPS quality than 93% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one physician assistant peer from a representative sample of 60; the gold marker is Chialin Lee, PA-C. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Chialin Lee, PA-C?
High performer (top quartile)Primary specialty
Physician Assistant
Medicare Part D claims
121 85% vs specialty avg
MIPS final score
100/100 16.5 pts vs avg
Specialty distribution in California
How Physician Assistant compares to other specialties among California providers
Medicare quality performance, MIPS
Chialin Lee, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average
- MIPS Final Score
- 100/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1003325853 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 09/25/2017 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Measured-score avg: 83.5
Reporting: Group practice
Hospital and facility affiliations
Facilities where Chialin Lee, 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.
Sutter Bay Medical Foundation
San Francisco, 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 Chialin Lee, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$120
Largest payer
ABBVIE INC.
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 Chialin Lee, PA-C. To verify Chialin Lee, 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 · Above average
Chialin Lee, PA-C - brand share 28.0%
Physician Assistant average
28% brand-name claims vs 72% generic, on 121 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.
121
Total Claims
$32K
Total Drug Cost
57
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 253
- Total Day Supply
- 7,507
- Brand vs Generic
- 28% brand / 72% generic
- Brand Drug Cost
- $24K
- Generic Drug Cost
- $8K
Patient Demographics
- Average Patient Age
- 75.3 years
- Avg HCC Risk Score
- 0.96
- Gender Split
- 58% female / 42% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Chialin Lee, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Pantoprazole Sodium
Pantoprazole Sodium
34 claims
- Dexlansoprazole Dr
Dexlansoprazole Dr
14 claims
- Famotidine
Famotidine
14 claims
- Linzess 13
Linzess
13 claims
| Drug | Claims |
|---|---|
| Pantoprazole Sodium | 34 |
| Dexlansoprazole Dr Dexlansoprazole | 14 |
| Famotidine | 14 |
| Linzess Linaclotide | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Chialin Lee, PA-C fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Chialin Lee, PA-C's 121 claims are below the specialty average of 790.
Nationwide Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Lee, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (100 here).
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Physician Assistant Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Lee.
One of 13,402 Physician Assistant providers enrolled in California, 5 are shown here.
Dr. Marcia -Galbraith
PA
Stockton, CA
Dr. Danny Abad
PA
Orange, CA
Dr. Lea Dominique Abadies
PA
Tustin, CA
Dr. Rea Elizabeth Abaniel
P.A.-C
Seal Beach, CA
Dr. Ramina Abbasi
PA-C
Signal Hill, CA
Compare Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Chialin Lee, PA-C's specialty? ▼
Chialin Lee, PA-C specializes in Physician Assistant and practices in San Francisco, California. Credentials: PA-C.
How much does Chialin Lee, PA-C prescribe under Medicare Part D? ▼
In 2023, Chialin Lee, PA-C wrote 121 Medicare Part D claims totaling $32K in drug costs for 57 beneficiaries.
What is Chialin Lee, PA-C's Medicare quality score? ▼
Chialin Lee, PA-C has a CMS MIPS Final Score of 100/100. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Chialin Lee, PA-C located? ▼
Chialin Lee, PA-C is located at 1100 VAN NESS AVE, San Francisco, CA, 94109. Phone: (415) 600-1151.
What is Chialin Lee, PA-C's NPI number? ▼
Chialin Lee, PA-C's National Provider Identifier (NPI) is 1003325853, issued on 09/25/2017.
Does Chialin Lee, PA-C prescribe more brand-name or generic drugs? ▼
Chialin Lee, PA-C's prescribing is 28% brand-name and 72% generic drugs by claim count, with $24K in brand drug costs.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 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 Chialin Lee, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Chialin Lee, PA-C's most frequently prescribed drugs include Pantoprazole Sodium, Dexlansoprazole Dr, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chialin Lee, PA-C accept Medicare? ▼
Chialin Lee, PA-C appears in CMS Medicare data with 121 Part D claims and 57 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chialin Lee, PA-C's credentials? ▼
Chialin Lee, PA-C's NPI is 1003325853 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
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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
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.