NPI registry status
Active
2026 NPPES data Allergy & Immunology Physician NPI 1235520990 MD
Verify on CMS → Ruizhi Dong, MD
Allergy & Immunology Physician in Ann Arbor, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,394 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
452
Medicare Part D claims · 75 beneficiaries · Allergy & Immunology Physician avg: 764
MIPS score
95.3/100
▲ 12 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Ruizhi Dong, MD reported a CMS MIPS final score of 95.3/100 - above the 83.1 national average - and filed 452 Medicare Part D claims in 2023.
- 95.3/100
- MIPS score · +12 vs avg
- 452
- 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.
Ruizhi Dong, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
95 Top 21% higher than 79% 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 Ruizhi Dong, MD 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, Ruizhi Dong, MD writes more Part D claims than 30% of them and scores higher on MIPS quality than 84% - placing this provider in the lower-volume, high-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 Ruizhi Dong, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Ruizhi Dong, MD 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 Ruizhi Dong, MD?
High performer (top quartile)Primary specialty
Allergy & Immunology Physician
Medicare Part D claims
452 41% vs specialty avg
MIPS final score
95.3/100 12.2 pts vs avg
Specialty distribution in Michigan
How Allergy & Immunology Physician compares to other specialties among Michigan providers
Medicare quality performance, MIPS
Ruizhi Dong, MD's 2023 MIPS final score plotted against the Allergy & Immunology Physician national average
- MIPS Final Score
- 95.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Allergy & Immunology Physician) - 95.3/100 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).
Ruizhi Dong, MD appears in the CMS NPPES registry as an Allergy & Immunology Physician provider holding MD credentials at 24 FRANK LLOYD WRIGHT DR, Ann Arbor, MI, 48105, with a listed phone of (734) 647-5940. NPI 1235520990 was issued on 02/16/2015.
Medicare Part D records for calendar year 2023 show 452 prescription claims written by this provider, covering 75 Medicare beneficiaries and totaling roughly $85K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 95.3/100 for the 2023 performance year (Quality 76.6), compared with the national average of 83.1.
Allergy & Immunology Physician is a narrow specialty nationwide, with 3,394 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 | 1235520990 |
|---|---|
| Specialty | Allergy & Immunology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 02/16/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
95.311
Final Score
Avg: 83.1
76.5856
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Ruizhi Dong, MD 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.
Regents OF The University OF Michigan
Brighton, MI
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 - Michigan MI-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 ~41K Michigan medical licensees in 2023 - they are NOT specific to Ruizhi Dong, MD. To verify Ruizhi Dong, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-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 Michigan 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.
452
Total Claims
$85K
Total Drug Cost
75
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 906
- Total Day Supply
- 26,575
- Generic Drug Cost
- $14K
Patient Demographics
- Average Patient Age
- 67.8 years
- Avg HCC Risk Score
- 1.40
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 21, 65-74: 34, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ruizhi Dong, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
36 claims
- Lisinopril
Lisinopril
21 claims
- Levothyroxine Sodium
Levothyroxine Sodium
18 claims
- Amlodipine Besylate
Amlodipine Besylate
16 claims
- Losartan Potassium
Losartan Potassium
16 claims
- Potassium Chloride
Potassium Chloride
16 claims
- Albuterol Sulfate … 13
Albuterol Sulfate Hfa
13 claims
- Trazodone Hcl 12
Trazodone Hcl
12 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 36 |
| Lisinopril | 21 |
| Levothyroxine Sodium | 18 |
| Amlodipine Besylate | 16 |
| Losartan Potassium | 16 |
| Potassium Chloride | 16 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 13 |
| Trazodone Hcl | 12 |
| Pregabalin | 11 |
* 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 Ruizhi Dong, MD fits within the Allergy & Immunology Physician landscape nationally.
3,394
Allergy & Immunology Physician Providers in US
52
States with Allergy & Immunology Physician
764
Avg Claims per Provider
Ruizhi Dong, MD's 452 claims are below the specialty average of 764.
Nearby Allergy & Immunology Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Dong.
Dr. Farrah Ahmad
M.D.
Flint, MI
Dr. Cem Akin
MD
Northville, MI
Dr. Michel Alkhalil
MD
Troy, MI
Dr. Jasmine Alsukhon
MD
Novi, MI
Dr. Suresh Anne
MD
Flint, MI
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 Michigan 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.
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Frequently Asked Questions
What is Ruizhi Dong, MD's specialty? ▼
Ruizhi Dong, MD specializes in Allergy & Immunology Physician and practices in Ann Arbor, Michigan. Credentials: MD.
How much does Ruizhi Dong, MD prescribe under Medicare Part D? ▼
In 2023, Ruizhi Dong, MD wrote 452 Medicare Part D claims totaling $85K in drug costs for 75 beneficiaries.
What is Ruizhi Dong, MD's Medicare quality score? ▼
Ruizhi Dong, MD has a CMS MIPS Final Score of 95.3/100 (Quality: 76.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ruizhi Dong, MD located? ▼
Ruizhi Dong, MD is located at 24 FRANK LLOYD WRIGHT DR, Ann Arbor, MI, 48105. Phone: (734) 647-5940.
What is Ruizhi Dong, MD's NPI number? ▼
Ruizhi Dong, MD's National Provider Identifier (NPI) is 1235520990, issued on 02/16/2015.
How many Allergy & Immunology Physician providers are there in the US? ▼
There are 3,394 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 Ruizhi Dong, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Ruizhi Dong, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ruizhi Dong, MD accept Medicare? ▼
Ruizhi Dong, MD appears in CMS Medicare data with 452 Part D claims and 75 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ruizhi Dong, MD's credentials? ▼
Ruizhi Dong, MD's NPI is 1235520990 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
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.
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 May 2026.