PlainDoctor

2026 NPPES data Allergy & Immunology Physician NPI 1043449788 M.D., PH.D.
Verify on CMS →

Sanny Chan, M.D., PH.D.

Allergy & Immunology Physician in Santa Monica, 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 3,412 in Allergy & Immunology 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
859
Medicare Part D claims · 160 beneficiaries · Allergy & Immunology Physician avg: 788
MIPS score
21.3/100
▼ 62 pts below national avg 83.5 · Below average
Industry payments
$2.3K
103 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Sanny Chan, M.D., PH.D. reported a CMS MIPS final score of 21.3/100 - below the 83.5 national average - and filed 859 Medicare Part D claims in 2024.

21.3/100
MIPS score · -62 vs avg
859
Part D claims, 2024
Likely
board-certified (heuristic)
≥3rd
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 Sanny Chan, M.D., PH.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 1043449788), first enumerated 07/02/2009.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 859 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 21.3/100 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.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Industry payment transparency

    $2.3K in reported industry payments (103 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 Sanny Chan, M.D., PH.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 1043449788 · Allergy & Immunology Physician

NPI-10 · ENUM-MID · TAX-NARROW · MIPS-LOW · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1043449788
  • ENUM-MID 2009
  • TAX-NARROW 3,412
  • MIPS-LOW 21.3/100
  • RX-LIGHT 859
  • BOOK-THIN 380 in California
  • PHOTO-FINISH Henry Fishman · ±0.8

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Sanny Chan, M.D., PH.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.

21 ≥ 3rd percentile 3% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). This entry sits in this band. 30–40: 2,746 measured providers (1%). Above this entry. 40–50: 2,928 measured providers (1%). Above this entry. 50–60: 5,882 measured providers (1%). Above this entry. 60–70: 13,906 measured providers (3%). Above this entry. 70–80: 94,570 measured providers (21%). Above this entry. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

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 Sanny Chan, M.D., PH.D. sits

This provider among allergy & immunology physician peers

Across the 659 allergy & immunology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Sanny Chan, M.D., PH.D. writes more Part D claims than 59% of them and scores higher on MIPS quality than 6% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 30Sanny Chan, M.D., PH.D., Part D claim volume, percentile in specialty: 59 · MIPS quality, percentile: 6
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one allergy & immunology physician peer from a representative sample of 60; the gold marker is Sanny Chan, M.D., PH.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Sanny Chan, M.D., PH.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Sanny Chan, M.D., PH.D.?

Below national average

NPI registry status

Active

Issued 07/02/2009

NPI 1043449788

Primary specialty

Allergy & Immunology Physician

Niche

3,412 US NPIs in this specialty

Medicare Part D claims

859 9% vs specialty avg

2024 prescription claims

Specialty avg: 788

MIPS final score

21.3/100 62.2 pts vs avg

Below average band

vs 83.5 national avg

Specialty distribution in California

How Allergy & Immunology Physician compares to other specialties among California providers

California providers
Behavior Technician17.9%Marriage & Family Therapist5.4%Student in an Organized Heal…5.1%Mental Health Counselor3.7%Pharmacist3.4%Clinical Social Worker3.1%Allergy & Immunology Physici…0%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Sanny Chan, M.D., PH.D.'s 2023 MIPS final score plotted against the Allergy & Immunology Physician national average

Below national average
MIPS Final Score
21.3/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%21.3%
MIPS final score (Allergy & Immunology Physician) - 21.3/100 vs national avg 83.5
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

1301 20TH ST STE 220
Santa Monica, CA 90404
(310) 401-1434

Provider Details

NPI 1043449788
Specialty Allergy & Immunology Physician
Credentials M.D., PH.D.
Gender Male
NPI Issued 07/02/2009

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

21.3405
Final Score
Measured-score avg: 83.5
0
Quality
71.135
Cost

Reporting: Individual

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 Sanny Chan, M.D., PH.D.. Source: openpaymentsdata.cms.gov.

Total received

$2.3K

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 Sanny Chan, M.D., PH.D.. To verify Sanny Chan, M.D., PH.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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

859
Total Claims
$825K
Total Drug Cost
160
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,544.067
Total Day Supply
44,073
Generic Drug Cost
$33K
Antibiotic Claims
24

Patient Demographics

Average Patient Age
75.2 years
Avg HCC Risk Score
1.08
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Sanny Chan, M.D., PH.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Montelukast Sodium
 166
Azelastine Hcl
 93
Ipratropium Bromide
 74
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
55
Fluticasone Propionate
 44
Albuterol Sulfate Hfa
Albuterol Sulfate
40
Epinephrine
 37
Azelastine-Fluticasone
Azelastine/Fluticasone
34
Levocetirizine Dihydrochloride
 27
Prednisone
 21

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

More Allergy & Immunology Physician in CA → All providers in California → Compare specialties →

Allergy & Immunology Physician Overview

How Sanny Chan, M.D., PH.D. fits within the Allergy & Immunology Physician landscape nationally.

3,412
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
788
Avg Claims per Provider

Sanny Chan, M.D., PH.D.'s 859 claims are above the specialty average of 788.

Nationwide Allergy & Immunology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Chan, both outside California so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (21.3 here).

Henry Fishman 20.5 DC Stuart Henochowicz 20.4 VA Michael Blumberg 22.7 VA Thomas Edwards 22.7 MA

Same NPPES enumeration year (2009)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nina Poliak Wilkes Barre, PA Venkatesh Sabhae Gangadharappa Brooklyn, NY Marissa Shams Atlanta, GA Julie Kuriakose New York, NY

Nearby Allergy & Immunology Physician Providers in California

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

One of 380 Allergy & Immunology Physician providers enrolled in California, 5 are shown here.

Dr. Seema Aceves
M.D., PH.D.
San Diego, CA
Dr. Daniel Adelman
M.D.
San Francisco, CA
Dr. Rhonda Alkatib
M.D.
San Diego, CA
Dr. Mercedes Amado
M.D.
San Diego, CA
Dr. Loula Amin
M.D.
Newport Beach, CA

Compare Allergy & Immunology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Sanny Chan, M.D., PH.D.'s specialty? ▼
Sanny Chan, M.D., PH.D. specializes in Allergy & Immunology Physician and practices in Santa Monica, California. Credentials: M.D., PH.D..
How much does Sanny Chan, M.D., PH.D. prescribe under Medicare Part D? ▼
In 2024, Sanny Chan, M.D., PH.D. wrote 859 Medicare Part D claims totaling $825K in drug costs for 160 beneficiaries.
What is Sanny Chan, M.D., PH.D.'s Medicare quality score? ▼
Sanny Chan, M.D., PH.D. has a CMS MIPS Final Score of 21.3/100 (Quality: 0, Cost: 71.1). 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 Sanny Chan, M.D., PH.D. located? ▼
Sanny Chan, M.D., PH.D. is located at 1301 20TH ST STE 220, Santa Monica, CA, 90404. Phone: (310) 401-1434.
What is Sanny Chan, M.D., PH.D.'s NPI number? ▼
Sanny Chan, M.D., PH.D.'s National Provider Identifier (NPI) is 1043449788, issued on 07/02/2009.
How many Allergy & Immunology Physician providers are there in the US? ▼
There are 3,412 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 788 Medicare Part D claims per year.
What drugs does Sanny Chan, M.D., PH.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Sanny Chan, M.D., PH.D.'s most frequently prescribed drugs include Montelukast Sodium, Azelastine Hcl, Ipratropium Bromide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sanny Chan, M.D., PH.D. accept Medicare? ▼
Sanny Chan, M.D., PH.D. appears in CMS Medicare data with 859 Part D claims and 160 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sanny Chan, M.D., PH.D.'s credentials? ▼
Sanny Chan, M.D., PH.D.'s NPI is 1043449788 with credentials M.D., PH.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

Compiled from official public sources by the editorial process.

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.