PATRICIA CHU, MD
Pediatrics Physician in ENCINITAS, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
PATRICIA CHU, MD filed 4,566 Medicare Part D claims in 2023 as a Pediatrics Physician in ENCINITAS, California, prescribing 93% generic.
- 5K
- Part D claims, 2023
- 93%
- generic prescribing
- Likely
- board-certified (heuristic)
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 CHU, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023 — across all CMS prescribers nationally
4,566 Top 7% higher than 93% 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
PATRICIA CHU, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about PATRICIA CHU, MD?
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in California
How Pediatrics Physician compares to other specialties among California providers
Pediatrics Physician share within California
Pediatrics Physician is one of the more visible NUCC categories in California
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Pediatrics Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Pediatrics Physician ABMS/AOA estimate
Est. board-certified rate (Pediatrics Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Pediatrics Physician US NPIs
Specialty board-certified rate — Pediatrics Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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 CHU, MD appears in the CMS NPPES registry as a Pediatrics Physician provider holding MD credentials at 629 2ND ST, ENCINITAS, CA, 92024, with a listed phone of (760) 753-7842. NPI 1659478329 was issued on 09/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHU 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 4,566 prescription claims written by this provider, covering 722 Medicare beneficiaries and totaling roughly $179K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 6.1%. 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.
Pediatrics Physician is a high-volume specialty nationwide, with 80,574 enrolled providers across 56 states and an average of 762 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 | 1659478329 |
|---|---|
| Specialty | Pediatrics Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 09/17/2006 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm PATRICIA CHU, MD's current license status, disciplinary history, and board certifications with the Medical Board of California in California before relying on this page for a clinical or care decision.
How we sourced this profile
Hospital and facility affiliations
Facilities where PATRICIA CHU, MD 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.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 CHU, MD. To verify PATRICIA CHU, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
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 · Generic-heavy
7% brand-name claims vs 93% generic, on 4,566 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.
Prescribing Breakdown
- 30-Day Fills
- 11,591
- Total Day Supply
- 337,187
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $104K
- Generic Drug Cost
- $74K
- Opioid Claims
- 279 (6.1% rate)
- Antibiotic Claims
- 155
Patient Demographics
- Average Patient Age
- 75.5 years
- Avg HCC Risk Score
- 1.18
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 16, 65-74: 338, 75-84: 261, 85+: 107
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What PATRICIA CHU, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Rosuvastatin Calcium
Rosuvastatin Calcium
339 claims
- Atorvastatin Calcium
Atorvastatin Calcium
220 claims
- Levothyroxine Sodium
Levothyroxine Sodium
217 claims
- Losartan Potassium
Losartan Potassium
164 claims
- Amlodipine Besylate
Amlodipine Besylate
148 claims
- Lisinopril
Lisinopril
143 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
139 claims
- Meloxicam 126
Meloxicam
126 claims
| Drug | Claims |
|---|---|
| Rosuvastatin Calcium | 339 |
| Atorvastatin Calcium | 220 |
| Levothyroxine Sodium | 217 |
| Losartan Potassium | 164 |
| Amlodipine Besylate | 148 |
| Lisinopril | 143 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 139 |
| Meloxicam | 126 |
| Gabapentin | 121 |
| Tamsulosin Hcl | 94 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pediatrics Physician Overview
How PATRICIA CHU, MD fits within the Pediatrics Physician landscape nationally.
PATRICIA CHU, MD's 4,566 claims are above the specialty average of 762.
Nearby Pediatrics Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as CHU.
Compare Pediatrics Physician nationally: see state-by-state distribution →
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
Explore California
Frequently Asked Questions
What is PATRICIA CHU, MD's specialty? ▼
How much does PATRICIA CHU, MD prescribe under Medicare Part D? ▼
Where is PATRICIA CHU, MD located? ▼
What is PATRICIA CHU, MD's NPI number? ▼
Does PATRICIA CHU, MD prescribe more brand-name or generic drugs? ▼
Does PATRICIA CHU, MD prescribe opioids? ▼
How many Pediatrics Physician providers are there in the US? ▼
What drugs does PATRICIA CHU, MD prescribe most often? ▼
Does PATRICIA CHU, MD accept Medicare? ▼
How can I verify PATRICIA CHU, MD's credentials? ▼
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