NPI registry status
Active
2026 NPPES data Nutritionist NPI 1316291925 M.D.
Verify on CMS → Edwin Yau, M.D.
Nutritionist in Monterey Park, 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 4,956 in Nutritionist, 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
31K
Medicare Part D claims · 851 beneficiaries · Nutritionist avg: 2K
Generic prescribing
69%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.8/100
▲ 6 pts above national avg 83.5 · Exceptional
Industry payments
$4.0K
179 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Edwin Yau, M.D. reported a CMS MIPS final score of 89.8/100 - above the 83.5 national average - and filed 31,020 Medicare Part D claims in 2024.
- 89.8/100
- MIPS score · +6 vs avg
- 31K
- Part D claims, 2024
- 69%
- generic prescribing
- $4.0K
- 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.
Federal trust snapshot
What official records show about Edwin Yau, M.D.
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1316291925), first enumerated 11/04/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 31,020 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 89.8/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$4.0K in reported industry payments (179 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Edwin Yau, M.D.'s individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1316291925 · Nutritionist
NPI-10 · ENUM-MID · TAX-NARROW · MIPS-ABOVE · RX-HEAVY · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1316291925
- ENUM-MID 2012
- TAX-NARROW 4,956
- MIPS-ABOVE 89.8/100
- RX-HEAVY 31K claims
- BOOK-LIGHT 556 in California
- PHOTO-FINISH Noelle Altavilla, RD… · ±0.5
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Swathi Neel, MS …
Swathi Neel, MS RDN CNSC LDN
88.3 MIPS pts
- Yau · this provi…
Yau · this provider
89.8 MIPS pts
- Noelle Altavilla…
Noelle Altavilla, RD, LDN
90.3 MIPS pts
- Alfred Leong, MD…
Alfred Leong, MD
90.4 MIPS pts
- Inna Tsinker, MS…
Inna Tsinker, MS, RD, CDN
90.7 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Edwin Yau, M.D.'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.
90 ≥ 56th percentile 56% 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
What does the federal data show about Edwin Yau, M.D.?
High performer (top quartile)Primary specialty
Nutritionist
Medicare Part D claims
31,020 20× vs specialty avg
MIPS final score
89.8/100 6.3 pts vs avg
Specialty distribution in California
How Nutritionist compares to other specialties among California providers
Medicare quality performance, MIPS
Edwin Yau, M.D.'s 2023 MIPS final score plotted against the Nutritionist national average
- MIPS Final Score
- 89.8/100
- 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 | 1316291925 |
|---|---|
| Specialty | Nutritionist |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 11/04/2012 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
89.7514
Final Score
Measured-score avg: 83.5
80.0222
Quality
64.0665
Cost
Reporting: Individual
Hospital and facility affiliations
Facilities where Edwin Yau, M.D. 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.
Icare Medical Group
Monterey Park, 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 Edwin Yau, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$4.0K
Largest payer
AstraZeneca Pharmaceuticals LP
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 Edwin Yau, M.D.. To verify Edwin Yau, M.D.'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
Edwin Yau, M.D. - brand share 30.0%
Nutritionist average
30% brand-name claims vs 69% generic, on 31,020 2024 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 2024.
31,020
Total Claims
$7.2M
Total Drug Cost
851
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 41,087.933
- Total Day Supply
- 1,179,474
- Brand vs Generic
- 30% brand / 69% generic
- Brand Drug Cost
- $6.6M
- Generic Drug Cost
- $507K
- Opioid Claims
- 45 (0.1% rate)
- Antibiotic Claims
- 325
Patient Demographics
- Average Patient Age
- 74.0 years
- Avg HCC Risk Score
- 1.57
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 35, 65-74: 496, 75-84: 216, 85+: 104
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Edwin Yau, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
1,274 claims
- Vascepa
Vascepa
1,149 claims
- Losartan Potassium
Losartan Potassium
1,127 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
1,068 claims
- Montelukast Sodium
Montelukast Sodium
970 claims
- Amlodipine Besylate
Amlodipine Besylate
895 claims
- Ezetimibe
Ezetimibe
806 claims
- Metoprolol Succinate
Metoprolol Succinate
633 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 1,274 |
| Vascepa Icosapent Ethyl | 1,149 |
| Losartan Potassium | 1,127 |
| Rosuvastatin Calcium | 1,068 |
| Montelukast Sodium | 970 |
| Amlodipine Besylate | 895 |
| Ezetimibe | 806 |
| Metoprolol Succinate | 633 |
| Levocetirizine Dihydrochloride | 622 |
| Gabapentin | 569 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nutritionist Overview
How Edwin Yau, M.D. fits within the Nutritionist landscape nationally.
4,956
Nutritionist Providers in US
54
States with Nutritionist
1,543
Avg Claims per Provider
Edwin Yau, M.D.'s 31,020 claims are above the specialty average of 1,543.
Nationwide Nutritionist peers with similar MIPS or enrollment year
Two federal-record peer sets for Yau, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (89.8 here).
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nutritionist Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Yau.
One of 556 Nutritionist providers enrolled in California, 5 are shown here.
Amanda Abraham
M.S., CHN
Berkeley, CA
Lucy Adams
M.S., C.N.S.
Lafayette, CA
Patricia Adams
BCHN
Scotts Valley, CA
Caridad Aguila-Vivar
RDN
Newhall, CA
Evette Aidinian
MS, CNS, LDN
Tujunga, CA
Compare Nutritionist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Edwin Yau, M.D.'s specialty? ▼
Edwin Yau, M.D. specializes in Nutritionist and practices in Monterey Park, California. Credentials: M.D..
How much does Edwin Yau, M.D. prescribe under Medicare Part D? ▼
In 2024, Edwin Yau, M.D. wrote 31,020 Medicare Part D claims totaling $7.2M in drug costs for 851 beneficiaries.
What is Edwin Yau, M.D.'s Medicare quality score? ▼
Edwin Yau, M.D. has a CMS MIPS Final Score of 89.8/100 (Quality: 80, Cost: 64.1). 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 Edwin Yau, M.D. located? ▼
Edwin Yau, M.D. is located at 500 N GARFIELD AVE STE 201, Monterey Park, CA, 91754. Phone: (626) 292-5896.
What is Edwin Yau, M.D.'s NPI number? ▼
Edwin Yau, M.D.'s National Provider Identifier (NPI) is 1316291925, issued on 11/04/2012.
Does Edwin Yau, M.D. prescribe more brand-name or generic drugs? ▼
Edwin Yau, M.D.'s prescribing is 30% brand-name and 69% generic drugs by claim count, with $6.6M in brand drug costs.
Does Edwin Yau, M.D. prescribe opioids? ▼
Yes, Edwin Yau, M.D. had 45 opioid claims in 2024 with an opioid prescribing rate of 0.1%.
How many Nutritionist providers are there in the US? ▼
There are 4,956 Nutritionist providers across 54 states in the US. The average Nutritionist provider writes 1,543 Medicare Part D claims per year.
What drugs does Edwin Yau, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Edwin Yau, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Vascepa, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Edwin Yau, M.D. accept Medicare? ▼
Edwin Yau, M.D. appears in CMS Medicare data with 31,020 Part D claims and 851 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Edwin Yau, M.D.'s credentials? ▼
Edwin Yau, M.D.'s NPI is 1316291925 with credentials M.D.. 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.