NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1275029084 MD
Verify on CMS → Jinwook Park, MD
Nephrology Physician in Indianapolis, Indiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,806 in Nephrology 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
231
Medicare Part D claims · 65 beneficiaries · Nephrology Physician avg: 2K
Generic prescribing
84%
generic claims · 16% 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
Jinwook Park, MD filed 231 Medicare Part D claims in 2024 as a Nephrology Physician in Indianapolis, Indiana, prescribing 84% generic.
- 231
- Part D claims, 2024
- 84%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥48th
- 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 Jinwook Park, 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 1275029084), first enumerated 07/04/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 231 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
1 CMS Care Compare hospital affiliation 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.
CMS NPPES provider registry desk
NPI 1275029084 · Nephrology Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1275029084
- ENUM-RECENT 2018
- TAX-MID 11K Nephrology Physician
- RX-LIGHT 231
- BOOK-THIN 210 in Indiana
- PHOTO-ENUM Osman Yilmam, MD · 2018
Jinwook Park, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
231 ≥ 48th percentile 48% 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)
Jinwook Park, MD 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 Jinwook Park, MD?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
231 85% vs specialty avg
Specialty distribution in Indiana
How Nephrology Physician compares to other specialties among Indiana 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 Nephrology 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 | 1275029084 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/04/2018 |
Hospital and facility affiliations
Facilities where Jinwook Park, 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.
University OF Louisville Physicians Inc
Louisville, KY
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
Jinwook Park, MD - brand share 16.0%
Nephrology Physician average
16% brand-name claims vs 84% generic, on 231 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.
231
Total Claims
$68K
Total Drug Cost
65
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 542.633
- Total Day Supply
- 16,086
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $24K
- Generic Drug Cost
- $44K
Patient Demographics
- Average Patient Age
- 67.7 years
- Avg HCC Risk Score
- 3.27
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 21, 65-74: 27, 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 Jinwook Park, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Carvedilol
Carvedilol
30 claims
- Olmesartan Medoxomil
Olmesartan Medoxomil
29 claims
- Amlodipine Besylate
Amlodipine Besylate
18 claims
- Kerendia
Kerendia
12 claims
| Drug | Claims |
|---|---|
| Carvedilol | 30 |
| Olmesartan Medoxomil | 29 |
| Amlodipine Besylate | 18 |
| Kerendia Finerenone | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Jinwook Park, MD fits within the Nephrology Physician landscape nationally.
10,806
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,511
Avg Claims per Provider
Jinwook Park, MD's 231 claims are below the specialty average of 1,511.
Nationwide Nephrology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Park, both outside Indiana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2018)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nephrology Physician Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as Park.
One of 210 Nephrology Physician providers enrolled in Indiana, 5 are shown here.
Nabigha Abdul Baki
Indianapolis, IN
Dr. Raied Abdullah
M.D.
Gary, IN
Dr. Stuart Abramson
MD
Indianapolis, IN
Roulan Abu Hweij
Danville, IN
Dr. Rajiv Agarwal
M.D.
Indianapolis, IN
Compare Nephrology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Jinwook Park, MD's specialty? ▼
Jinwook Park, MD specializes in Nephrology Physician and practices in Indianapolis, Indiana. Credentials: MD.
How much does Jinwook Park, MD prescribe under Medicare Part D? ▼
In 2024, Jinwook Park, MD wrote 231 Medicare Part D claims totaling $68K in drug costs for 65 beneficiaries.
Where is Jinwook Park, MD located? ▼
Jinwook Park, MD is located at 950 W WALNUT ST, Indianapolis, IN, 46202. Phone: (317) 274-7453.
What is Jinwook Park, MD's NPI number? ▼
Jinwook Park, MD's National Provider Identifier (NPI) is 1275029084, issued on 07/04/2018.
Does Jinwook Park, MD prescribe more brand-name or generic drugs? ▼
Jinwook Park, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $24K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,806 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,511 Medicare Part D claims per year.
What drugs does Jinwook Park, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Jinwook Park, MD's most frequently prescribed drugs include Carvedilol, Olmesartan Medoxomil, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jinwook Park, MD accept Medicare? ▼
Jinwook Park, MD appears in CMS Medicare data with 231 Part D claims and 65 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jinwook Park, MD's credentials? ▼
Jinwook Park, MD's NPI is 1275029084 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.