NPI registry status
Active
2026 NPPES data Pediatric Adolescent Medicine Physician NPI 1659638823
Verify on CMS → Christopher Weiss
Pediatric Adolescent Medicine Physician in Palo Alto, 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 2,592 in Pediatric Adolescent Medicine Physician, 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
85
Medicare Part D claims · 18 beneficiaries · Pediatric Adolescent Medicine Physician avg: 205
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
What the federal data shows
Christopher Weiss reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 85 Medicare Part D claims in 2024.
- 100/100
- MIPS score · +17 vs avg
- 85
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥92nd
- pct among measured MIPS (lower-bound band)
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 Christopher Weiss
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 1659638823), first enumerated 04/12/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 85 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 100/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Christopher Weiss'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 1659638823 · Pediatric Adolescent Medicine Physician
NPI-10 · ENUM-MID · TAX-NARROW · MIPS-ELITE · RX-TRACE · BOOK-THIN · PHOTO-FINISH
- NPI-10 1659638823
- ENUM-MID 2012
- TAX-NARROW 2,592
- MIPS-ELITE 100/100
- RX-TRACE 85
- BOOK-THIN 254 in California
- PHOTO-FINISH Sheila Guelda, M.D. · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Weiss · this pro…
Weiss · this provider
100 MIPS pts
- Karen Soren, MD …
Karen Soren, MD
100 MIPS pts
- Sheila Guelda, M…
Sheila Guelda, M.D.
100 MIPS pts
- Susan Hertweck, …
Susan Hertweck, M.D.
100 MIPS pts
- Eric Meininger, …
Eric Meininger, M.D., M.P.H.
100 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Christopher Weiss'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 Christopher Weiss sits
This provider among pediatric adolescent medicine physician peers
Across the 22 pediatric adolescent medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Christopher Weiss writes more Part D claims than 64% of them and scores higher on MIPS quality than 82% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one pediatric adolescent medicine physician peer from a representative sample of 21; the gold marker is Christopher Weiss. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Christopher Weiss practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Christopher Weiss?
High performer (top quartile)Primary specialty
Pediatric Adolescent Medicine Physician
Medicare Part D claims
85 59% vs specialty avg
MIPS final score
100/100 16.5 pts vs avg
Specialty distribution in California
How Pediatric Adolescent Medicine Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Christopher Weiss's 2023 MIPS final score plotted against the Pediatric Adolescent Medicine Physician 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 | 1659638823 |
|---|---|
| Specialty | Pediatric Adolescent Medicine Physician |
| Gender | Male |
| NPI Issued | 04/12/2012 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Measured-score avg: 83.5
96
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Christopher Weiss 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.
Skilled Facility Health Care Solutions Inc
Hayward, 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).
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 Christopher Weiss. To verify Christopher Weiss'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
85
Total Claims
$5K
Total Drug Cost
18
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 85.233
- Total Day Supply
- 1,431
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 77.8 years
- Avg HCC Risk Score
- 3.00
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Clobetasol Propionate | 19 |
| Omeprazole | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Pediatric Adolescent Medicine Physician in CA →
All providers in California →
Compare specialties →
Pediatric Adolescent Medicine Physician Overview
How Christopher Weiss fits within the Pediatric Adolescent Medicine Physician landscape nationally.
2,592
Pediatric Adolescent Medicine Physician Providers in US
52
States with Pediatric Adolescent Medicine Physician
205
Avg Claims per Provider
Christopher Weiss's 85 claims are below the specialty average of 205.
Nationwide Pediatric Adolescent Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Weiss, 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 (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pediatric Adolescent Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Weiss.
One of 254 Pediatric Adolescent Medicine Physician providers enrolled in California, 5 are shown here.
Dr. William Adelman
M.D.
Orange, CA
Dr. Shelley Aggarwal
MD
Palo Alto, CA
Dr. Elsa Aguilar
M.D.
Anaheim, CA
Dr. Saverio Aita
M.D.
Napa, CA
Kaneez Ali
PA
Perris, CA
Compare Pediatric Adolescent Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Christopher Weiss's specialty? ▼
Christopher Weiss specializes in Pediatric Adolescent Medicine Physician and practices in Palo Alto, California.
How much does Christopher Weiss prescribe under Medicare Part D? ▼
In 2024, Christopher Weiss wrote 85 Medicare Part D claims totaling $5K in drug costs for 18 beneficiaries.
What is Christopher Weiss's Medicare quality score? ▼
Christopher Weiss 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 Christopher Weiss located? ▼
Christopher Weiss is located at 725 WELCH RD, Palo Alto, CA, 94304. Phone: (650) 497-8000.
What is Christopher Weiss's NPI number? ▼
Christopher Weiss's National Provider Identifier (NPI) is 1659638823, issued on 04/12/2012.
How many Pediatric Adolescent Medicine Physician providers are there in the US? ▼
There are 2,592 Pediatric Adolescent Medicine Physician providers across 52 states in the US. The average Pediatric Adolescent Medicine Physician provider writes 205 Medicare Part D claims per year.
What drugs does Christopher Weiss prescribe most often? ▼
Based on 2024 Medicare Part D data, Christopher Weiss's most frequently prescribed drugs include Clobetasol Propionate, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher Weiss accept Medicare? ▼
Christopher Weiss appears in CMS Medicare data with 85 Part D claims and 18 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Weiss's credentials? ▼
Christopher Weiss's NPI is 1659638823. 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.