NPI registry status
Active
2026 NPPES data Allergy & Immunology Physician NPI 1447518535
Verify on CMS → Yi Feng Chen
Allergy & Immunology Physician in Bethlehem, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,390 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
422
Medicare Part D claims · 87 beneficiaries · Allergy & Immunology Physician avg: 764
MIPS score
79.3/100
▼ 4 pts below national avg 83.1 · Above neutral
Industry payments
$2.7K
114 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Yi Feng Chen reported a CMS MIPS final score of 79.3/100 - below the 83.1 national average - and filed 422 Medicare Part D claims in 2023.
- 79.3/100
- MIPS score · -4 vs avg
- 422
- Part D claims, 2023
- 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.
Yi Feng Chen's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
79 30th percentile higher than 30% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Yi Feng Chen sits
This provider among allergy & immunology physician peers
Across the 740 allergy & immunology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Yi Feng Chen writes more Part D claims than 29% of them and scores higher on MIPS quality than 49% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
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 Yi Feng Chen. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Yi Feng Chen 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 Yi Feng Chen?
Near national averagePrimary specialty
Allergy & Immunology Physician
Medicare Part D claims
422 45% vs specialty avg
MIPS final score
79.3/100 3.8 pts vs avg
Specialty distribution in Pennsylvania
How Allergy & Immunology Physician compares to other specialties among Pennsylvania providers
Medicare quality performance, MIPS
Yi Feng Chen's 2023 MIPS final score plotted against the Allergy & Immunology Physician national average
- MIPS Final Score
- 79.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Allergy & Immunology Physician) - 79.3/100 vs national avg 83.1
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).
Yi Feng Chen appears in the CMS NPPES registry as a Allergy & Immunology Physician provider at 3101 EMRICK BLVD STE 211, Bethlehem, PA, 18020, with a listed phone of (610) 954-9260. NPI 1447518535 was issued on 04/26/2012.
Medicare Part D records for calendar year 2023 show 422 prescription claims written by this provider, covering 87 Medicare beneficiaries and totaling roughly $114K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3/100 for the 2023 performance year (Quality 50.1, Cost 97.5), compared with the national average of 83.1.
Allergy & Immunology Physician is a narrow specialty nationwide, with 3,390 enrolled providers across 52 states and an average of 764 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 | 1447518535 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Gender | Male |
| NPI Issued | 04/26/2012 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.2795
Final Score
Avg: 83.1
50.064
Quality
97.513
Cost
Reporting: Group practice
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 Yi Feng Chen. Source: openpaymentsdata.cms.gov.
Total received
$2.7K
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 - Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Yi Feng Chen. To verify Yi Feng Chen's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM 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 Pennsylvania 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 2023.
422
Total Claims
$114K
Total Drug Cost
87
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 646
- Total Day Supply
- 17,510
- Generic Drug Cost
- $35K
- Antibiotic Claims
- 18
Patient Demographics
- Average Patient Age
- 71.7 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 67% female / 33% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Yi Feng Chen prescribes most
Top Medicare Part D drugs by claim count, 2023
- Albuterol Sulfate …
Albuterol Sulfate Hfa
44 claims
- Montelukast Sodium
Montelukast Sodium
43 claims
- Fluticasone Propio…
Fluticasone Propionate
35 claims
- Prednisone
Prednisone
28 claims
- Mometasone Furoate
Mometasone Furoate
27 claims
- Advair Diskus
Advair Diskus
26 claims
- Wixela Inhub
Wixela Inhub
22 claims
- Levocetirizine Dih…
Levocetirizine Dihydrochloride
19 claims
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 44 |
| Montelukast Sodium | 43 |
| Fluticasone Propionate | 35 |
| Prednisone | 28 |
| Mometasone Furoate | 27 |
| Advair Diskus Fluticasone Propion/Salmeterol | 26 |
| Wixela Inhub Fluticasone Propion/Salmeterol | 22 |
| Levocetirizine Dihydrochloride | 19 |
| Azelastine Hcl | 16 |
| Azelastine-Fluticasone Azelastine/Fluticasone | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Allergy & Immunology Physician Overview
How Yi Feng Chen fits within the Allergy & Immunology Physician landscape nationally.
3,390
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider
Yi Feng Chen's 422 claims are below the specialty average of 764.
Nearby Allergy & Immunology Physician Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Chen.
Dr. Jerome Aarons
M.D.
Pittsburgh, PA
Dr. Elias Abboud
M.D.
Jenkintown, PA
Dr. Carol Actor
M.D.
Phoenixville, PA
Dr. Neha Agnihotri
MD
Cranberry Township, PA
Dr. Sartaj Ahmed
M.D.
Erie, PA
Compare Allergy & Immunology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Pennsylvania medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Allergy & Immunology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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How to Find a Doctor
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Pennsylvania
Frequently Asked Questions
What is Yi Feng Chen's specialty? ▼
Yi Feng Chen specializes in Allergy & Immunology Physician and practices in Bethlehem, Pennsylvania.
How much does Yi Feng Chen prescribe under Medicare Part D? ▼
In 2023, Yi Feng Chen wrote 422 Medicare Part D claims totaling $114K in drug costs for 87 beneficiaries.
What is Yi Feng Chen's Medicare quality score? ▼
Yi Feng Chen has a CMS MIPS Final Score of 79.3/100 (Quality: 50.1, Cost: 97.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Yi Feng Chen located? ▼
Yi Feng Chen is located at 3101 EMRICK BLVD STE 211, Bethlehem, PA, 18020. Phone: (610) 954-9260.
What is Yi Feng Chen's NPI number? ▼
Yi Feng Chen's National Provider Identifier (NPI) is 1447518535, issued on 04/26/2012.
How many Allergy & Immunology Physician providers are there in the US? ▼
There are 3,390 Allergy & Immunology Physician providers across 52 states in the US. The average Allergy & Immunology Physician provider writes 764 Medicare Part D claims per year.
What drugs does Yi Feng Chen prescribe most often? ▼
Based on 2023 Medicare Part D data, Yi Feng Chen's most frequently prescribed drugs include Albuterol Sulfate Hfa, Montelukast Sodium, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Yi Feng Chen accept Medicare? ▼
Yi Feng Chen appears in CMS Medicare data with 422 Part D claims and 87 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Yi Feng Chen's credentials? ▼
Yi Feng Chen's NPI is 1447518535. 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 (2023). 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 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
Compiled from official public sources by the PlainDoctor editorial team.