NPI registry status
Active
2026 NPPES data Hospitalist Physician NPI 1275277972 MD
Verify on CMS → Jiyun Li, MD
Hospitalist Physician in New Haven, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 17,950 in Hospitalist 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
366
Medicare Part D claims · 134 beneficiaries · Hospitalist Physician avg: 940
Generic prescribing
84%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Jiyun Li, MD filed 366 Medicare Part D claims in 2024 as a Hospitalist Physician in New Haven, Connecticut, prescribing 84% generic.
- 366
- Part D claims, 2024
- 84%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥56th
- pct by Part D claim volume (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 Jiyun Li, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1275277972), first enumerated 04/27/2022.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 366 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- 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
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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.
Compare Li with other Hospitalist Physician providers
Same primary specialty, same federal CMS NPPES roster.
All 99 Hospitalist Physician providers in New Haven, CT →
Also enrolled in Connecticut
- Lilyan Abraham Farmington, CT
- Dr. Suja Abraham, MD Stamford, CT
- Dr. Adam Ackerman, MD New Haven, CT
- Dr. Nana Addo, M.D Norwalk, CT
- Dr. Santosh Adhikari, MD Hartford, CT
- Edin Adilovic Bridgeport, CT
Other specialties in New Haven: Student in an Organized Health Care Education/Training Program (2,279) · Clinical Social Worker (516) · Internal Medicine Physician (490) · Physician Assistant (304)
CMS NPPES provider registry desk
NPI 1275277972 · Hospitalist Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1275277972
- ENUM-RECENT 2022
- TAX-MID 18K Hospitalist Physician
- RX-LIGHT 366
- BOOK-THIN 311 in Connecticut
- PHOTO-ENUM Vinathi Polamraju, MD · 2022
Jiyun Li, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
366 ≥ 56th percentile 56% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Jiyun Li, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Jiyun Li, MD?
Quality data not reportedPrimary specialty
Hospitalist Physician
Medicare Part D claims
366 61% vs specialty avg
Specialty distribution in Connecticut
How Hospitalist Physician compares to other specialties among Connecticut 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 Hospitalist 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).
Practice Address
Provider Details
| NPI | 1275277972 |
|---|---|
| Specialty | Hospitalist Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 04/27/2022 |
Hospital and facility affiliations
Facilities where Jiyun Li, 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.
Northeast Medical Group Inc
New Haven, CT
Sinai Hospital OF Baltimore, Inc
Baltimore, MD
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 · Typical
Jiyun Li, MD - brand share 13.0%
Hospitalist Physician average
13% brand-name claims vs 84% generic, on 366 2024 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 2024.
366
Total Claims
$34K
Total Drug Cost
134
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 754.867
- Total Day Supply
- 21,956
- Brand vs Generic
- 13% brand / 84% generic
- Brand Drug Cost
- $30K
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 68.3 years
- Avg HCC Risk Score
- 2.11
- Gender Split
- 50% female / 50% male
- Age Distribution
- <65: 36, 65-74: 61, 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.
What Jiyun Li, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amlodipine Besylate
Amlodipine Besylate
36 claims
- Atorvastatin Calcium
Atorvastatin Calcium
33 claims
- Lisinopril
Lisinopril
22 claims
- Metoprolol Succinate
Metoprolol Succinate
19 claims
- Omeprazole 12
Omeprazole
12 claims
- Amlodipine-Valsartan 11
Amlodipine-Valsartan
11 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 36 |
| Atorvastatin Calcium | 33 |
| Lisinopril | 22 |
| Metoprolol Succinate | 19 |
| Omeprazole | 12 |
| Amlodipine-Valsartan Amlodipine Besylate/Valsartan | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hospitalist Physician Overview
How Jiyun Li, MD fits within the Hospitalist Physician landscape nationally.
17,950
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
940
Avg Claims per Provider
Jiyun Li, MD's 366 claims are below the specialty average of 940.
Nationwide Hospitalist Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Li, both outside Connecticut so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hospitalist Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Li.
One of 311 Hospitalist Physician providers enrolled in Connecticut, 11 are shown on this page.
Dr. Fernando Afonso
M.D.
Danbury, CT
Dr. Mohamed Ahmed
M.D.
Danbury, CT
Dr. Folasade Ajayi
M.D.
Farmington, CT
Dr. Mhd Yassin Al Mouslmani
M.D
New Haven, CT
Dr. Gustavo Alday
M.D.
Danbury, CT
Compare Hospitalist Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Jiyun Li, MD's specialty? ▼
Jiyun Li, MD specializes in Hospitalist Physician and practices in New Haven, Connecticut. Credentials: MD.
How much does Jiyun Li, MD prescribe under Medicare Part D? ▼
In 2024, Jiyun Li, MD wrote 366 Medicare Part D claims totaling $34K in drug costs for 134 beneficiaries.
Where is Jiyun Li, MD located? ▼
Jiyun Li, MD is located at 20 YORK ST, New Haven, CT, 06510. Phone: (240) 856-4539.
What is Jiyun Li, MD's NPI number? ▼
Jiyun Li, MD's National Provider Identifier (NPI) is 1275277972, issued on 04/27/2022.
Does Jiyun Li, MD prescribe more brand-name or generic drugs? ▼
Jiyun Li, MD's prescribing is 13% brand-name and 84% generic drugs by claim count, with $30K in brand drug costs.
How many Hospitalist Physician providers are there in the US? ▼
There are 17,950 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 940 Medicare Part D claims per year.
What drugs does Jiyun Li, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Jiyun Li, MD's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jiyun Li, MD accept Medicare? ▼
Jiyun Li, MD appears in CMS Medicare data with 366 Part D claims and 134 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jiyun Li, MD's credentials? ▼
Jiyun Li, MD's NPI is 1275277972 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 (2024). 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 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.