2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1326500836 MD
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ELAINE CHAU, MD

Student in an Organized Health Care Education/Training Program in ROSEVILLE, 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
3K
Medicare Part D claims · 428 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 459
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ELAINE CHAU, MD filed 2,910 Medicare Part D claims in 2023 as a Student in an Organized Health Care Education/Training Program in ROSEVILLE, California, prescribing 92% generic.

3K
Part D claims, 2023
92%
generic prescribing

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.

ELAINE CHAU, MD's Medicare Part D volume vs every U.S. prescriber

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

2,910 Top 12% higher than 88% 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 ELAINE CHAU, MD?

Quality data not reported

NPI registry status

Active

Issued 04/03/2019

NPI 1326500836

Primary specialty

Student in an Organized Health Care Education/Training Program

High-volume

331,761 US NPIs in this specialty

Medicare Part D claims

2,910 534% vs specialty avg

2023 prescription claims

Specialty avg: 459

Specialty distribution in California

How Student in an Organized Health Care Education/Training Program compares to other specialties among California providers

California providers

Student in an Organized Health Care Education/Training Program share within California

1. Student in an Organized Health Care Education/Training Program42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Student in an Organized Health Care Education/Training Program share within California

Specialty board-certification context

Estimated specialty board-certified rate — Student in an Organized Health Care Education/Training Program (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Student in an Organized Health Care Education/Training Program ABMS/AOA estimate

Est. board-certified rate (Student in an Organized Health Care Education/Training Program) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Student in an Organized Health Care Education/Training Program) — 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).

ELAINE CHAU, MD appears in the CMS NPPES registry as a Student in an Organized Health Care Education/Training Program provider holding MD credentials at 1001 RIVERSIDE AVE, ROSEVILLE, CA, 95678, with a listed phone of (916) 784-4050. NPI 1326500836 was issued on 04/03/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAU 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 2,910 prescription claims written by this provider, covering 428 Medicare beneficiaries and totaling roughly $138K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 4.4%. 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.

Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,761 enrolled providers across 55 states and an average of 459 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

1001 RIVERSIDE AVE
ROSEVILLE, CA 95678

Provider Details

NPI 1326500836
Specialty Student in an Organized Health Care Education/Training Program
Credentials MD
Gender Female
NPI Issued 04/03/2019

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 ELAINE CHAU, MD. To verify ELAINE CHAU, MD'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 · Generic-heavy

ELAINE CHAU, MD — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 2,910 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.

2,910
Total Claims
$138K
Total Drug Cost
428
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,815
Total Day Supply
197,492
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$89K
Generic Drug Cost
$49K
Opioid Claims
128 (4.4% rate)
Antibiotic Claims
85

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.14
Gender Split
67% female / 33% male
Age Distribution
<65: 25, 65-74: 231, 75-84: 127, 85+: 45

Top Prescribed Drugs (Medicare Part D)

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

What ELAINE CHAU, MD 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
Atorvastatin Calcium
207
Levothyroxine Sodium
144
Losartan Potassium
103
Lisinopril
93
Gabapentin
75
Amlodipine Besylate
74
Albuterol Sulfate Hfa
Albuterol Sulfate
65
Omeprazole
64
Fluticasone Propionate
63
Hydrochlorothiazide
61

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

Student in an Organized Health Care Education/Training Program Overview

How ELAINE CHAU, MD fits within the Student in an Organized Health Care Education/Training Program landscape nationally.

331,761
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
459
Avg Claims per Provider

ELAINE CHAU, MD's 2,910 claims are above the specialty average of 459.

Nearby Student in an Organized Health Care Education/Training Program Providers in California

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

Compare Student in an Organized Health Care Education/Training Program nationally: see state-by-state distribution →

Frequently Asked Questions

What is ELAINE CHAU, MD's specialty?
ELAINE CHAU, MD specializes in Student in an Organized Health Care Education/Training Program and practices in ROSEVILLE, California. Credentials: MD.
How much does ELAINE CHAU, MD prescribe under Medicare Part D?
In 2023, ELAINE CHAU, MD wrote 2,910 Medicare Part D claims totaling $138K in drug costs for 428 beneficiaries.
Where is ELAINE CHAU, MD located?
ELAINE CHAU, MD is located at 1001 RIVERSIDE AVE, ROSEVILLE, CA, 95678. Phone: (916) 784-4050.
What is ELAINE CHAU, MD's NPI number?
ELAINE CHAU, MD's National Provider Identifier (NPI) is 1326500836, issued on 04/03/2019.
Does ELAINE CHAU, MD prescribe more brand-name or generic drugs?
ELAINE CHAU, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $89K in brand drug costs.
Does ELAINE CHAU, MD prescribe opioids?
Yes, ELAINE CHAU, MD had 128 opioid claims in 2023 with an opioid prescribing rate of 4.4%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US?
There are 331,761 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 459 Medicare Part D claims per year.
What drugs does ELAINE CHAU, MD prescribe most often?
Based on 2023 Medicare Part D data, ELAINE CHAU, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ELAINE CHAU, MD accept Medicare?
ELAINE CHAU, MD appears in CMS Medicare data with 2,910 Part D claims and 428 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ELAINE CHAU, MD's credentials?
ELAINE CHAU, MD's NPI is 1326500836 with credentials MD. 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