NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1164401550 M.D.
Verify on CMS → Jay Ryu, M.D.
Pulmonary Disease Physician in Rochester, Minnesota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,271 in Pulmonary Disease 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
201
Medicare Part D claims · 68 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
53%
generic claims · 47% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Jay Ryu, M.D. filed 201 Medicare Part D claims in 2023 as a Pulmonary Disease Physician in Rochester, Minnesota, prescribing 53% generic.
- 201
- Part D claims, 2023
- 53%
- generic prescribing
- 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.
Jay Ryu, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
201 49th percentile higher than 49% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Jay Ryu, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Jay Ryu, M.D.?
Quality data not reportedPrimary specialty
Pulmonary Disease Physician
Medicare Part D claims
201 86% vs specialty avg
Specialty distribution in Minnesota
How Pulmonary Disease Physician compares to other specialties among Minnesota providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pulmonary Disease Physician. Verify directly:
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).
Jay Ryu, M.D. appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding M.D. credentials at 200 1ST ST SW, Rochester, MN, 55905, with a listed phone of (507) 284-2511. NPI 1164401550 was issued on 01/13/2006.
Medicare Part D records for calendar year 2023 show 201 prescription claims written by this provider, covering 68 Medicare beneficiaries and totaling roughly $57K in drug spend, split 47% brand-name and 53% generic by claim count.
Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,271 enrolled providers across 53 states and an average of 1,457 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 | 1164401550 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 01/13/2006 |
Hospital and facility affiliations
Facilities where Jay Ryu, 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.
Mayo Clinic
Rochester, MN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Above average
Jay Ryu, M.D. - brand share 47.0%
Pulmonary Disease Physician average
47% brand-name claims vs 53% generic, on 201 2023 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 2023.
201
Total Claims
$57K
Total Drug Cost
68
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 330
- Total Day Supply
- 9,622
- Brand vs Generic
- 47% brand / 53% generic
- Brand Drug Cost
- $45K
- Generic Drug Cost
- $11K
- Antibiotic Claims
- 19
Patient Demographics
- Average Patient Age
- 73.9 years
- Avg HCC Risk Score
- 1.88
- Gender Split
- 50% female / 50% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jay Ryu, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
41 claims
- Advair Hfa
Advair Hfa
18 claims
- Sulfamethoxazole-T… 15
Sulfamethoxazole-Trimethoprim
15 claims
- Albuterol Sulfate … 13
Albuterol Sulfate Hfa
13 claims
- Breztri Aerosphere 12
Breztri Aerosphere
12 claims
- Anoro Ellipta 11
Anoro Ellipta
11 claims
| Drug | Claims |
|---|---|
| Prednisone | 41 |
| Advair Hfa Fluticasone Propion/Salmeterol | 18 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 15 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 13 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 12 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pulmonary Disease Physician Overview
How Jay Ryu, M.D. fits within the Pulmonary Disease Physician landscape nationally.
9,271
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider
Jay Ryu, M.D.'s 201 claims are below the specialty average of 1,457.
Nearby Pulmonary Disease Physician Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Ryu.
Dr. Abdallah Abboud
M.D.
Minneapolis, MN
Dr. Timothy Aksamit
M.D.
Rochester, MN
Dr. Talal Almasri
MBBS
Rochester, MN
Dr. Ghadah Alrehaili
MBBS
Rochester, MN
Dr. Blair Anderson
MD
St Louis Park, MN
Compare Pulmonary Disease 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 Minnesota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pulmonary Disease 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
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
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 Minnesota
Frequently Asked Questions
What is Jay Ryu, M.D.'s specialty? ▼
Jay Ryu, M.D. specializes in Pulmonary Disease Physician and practices in Rochester, Minnesota. Credentials: M.D..
How much does Jay Ryu, M.D. prescribe under Medicare Part D? ▼
In 2023, Jay Ryu, M.D. wrote 201 Medicare Part D claims totaling $57K in drug costs for 68 beneficiaries.
Where is Jay Ryu, M.D. located? ▼
Jay Ryu, M.D. is located at 200 1ST ST SW, Rochester, MN, 55905. Phone: (507) 284-2511.
What is Jay Ryu, M.D.'s NPI number? ▼
Jay Ryu, M.D.'s National Provider Identifier (NPI) is 1164401550, issued on 01/13/2006.
Does Jay Ryu, M.D. prescribe more brand-name or generic drugs? ▼
Jay Ryu, M.D.'s prescribing is 47% brand-name and 53% generic drugs by claim count, with $45K in brand drug costs.
How many Pulmonary Disease Physician providers are there in the US? ▼
There are 9,271 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does Jay Ryu, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Jay Ryu, M.D.'s most frequently prescribed drugs include Prednisone, Advair Hfa, Sulfamethoxazole-Trimethoprim. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jay Ryu, M.D. accept Medicare? ▼
Jay Ryu, M.D. appears in CMS Medicare data with 201 Part D claims and 68 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jay Ryu, M.D.'s credentials? ▼
Jay Ryu, M.D.'s NPI is 1164401550 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 (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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.