NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1104872381 MD
Verify on CMS → Mark Chin, MD
Cardiovascular Disease Physician in Farmington, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,810 in Cardiovascular 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
469
Medicare Part D claims · 122 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Mark Chin, MD filed 469 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Farmington, Missouri, prescribing 91% generic.
- 469
- Part D claims, 2023
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥62nd
- 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.
Mark Chin, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
469 ≥ 62nd percentile 62% of 1,370,886 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 · 2023
✓
Board certification likely (heuristic, not verified)
Mark Chin, 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 Mark Chin, MD?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
469 85% vs specialty avg
Specialty distribution in Missouri
How Cardiovascular Disease Physician compares to other specialties among Missouri 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 Cardiovascular 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).
Mark Chin, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 1103 W LIBERTY ST, Farmington, MO, 63640, with a listed phone of (573) 760-8488. NPI 1104872381 was issued on 05/26/2006.
Medicare Part D records for calendar year 2023 show 469 prescription claims written by this provider, covering 122 Medicare beneficiaries and totaling roughly $25K in drug spend, split 9% brand-name and 91% generic by claim count.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,810 enrolled providers across 54 states and an average of 3,033 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 | 1104872381 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/26/2006 |
Hospital and facility affiliations
Facilities where Mark Chin, 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.
Heart And Vascular Associates LLC
Farmington, MO
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 · Generic-heavy
Mark Chin, MD - brand share 9.0%
Cardiovascular Disease Physician average
9% brand-name claims vs 91% generic, on 469 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.
469
Total Claims
$25K
Total Drug Cost
122
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 856
- Total Day Supply
- 24,588
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $20K
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 70.4 years
- Avg HCC Risk Score
- 1.34
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 25, 65-74: 61, 75-84: 24, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mark Chin, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
53 claims
- Metoprolol Tartrate
Metoprolol Tartrate
44 claims
- Nitroglycerin
Nitroglycerin
41 claims
- Metoprolol Succinate
Metoprolol Succinate
39 claims
- Isosorbide Mononit…
Isosorbide Mononitrate Er
35 claims
- Furosemide
Furosemide
30 claims
- Lisinopril
Lisinopril
22 claims
- Losartan Potassium 20
Losartan Potassium
20 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 53 |
| Metoprolol Tartrate | 44 |
| Nitroglycerin | 41 |
| Metoprolol Succinate | 39 |
| Isosorbide Mononitrate Er Isosorbide Mononitrate | 35 |
| Furosemide | 30 |
| Lisinopril | 22 |
| Losartan Potassium | 20 |
| Carvedilol | 18 |
| Clopidogrel Clopidogrel Bisulfate | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Mark Chin, MD fits within the Cardiovascular Disease Physician landscape nationally.
24,810
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Mark Chin, MD's 469 claims are below the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Chin.
Dr. Ala'Eldin Ababneh
MD
Saint Joseph, MO
Dr. Yousef Abdulnabi
M.D.
Saint Louis, MO
Dr. Leni Abraham
MD
St. Louis, MO
Dr. Jose Aguilera Heredia
MD
Lees Summit, MO
Dr. Farhaan Ahmad
MD
St Louis, MO
Compare Cardiovascular 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 Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Cardiovascular 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.
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Frequently Asked Questions
What is Mark Chin, MD's specialty? ▼
Mark Chin, MD specializes in Cardiovascular Disease Physician and practices in Farmington, Missouri. Credentials: MD.
How much does Mark Chin, MD prescribe under Medicare Part D? ▼
In 2023, Mark Chin, MD wrote 469 Medicare Part D claims totaling $25K in drug costs for 122 beneficiaries.
Where is Mark Chin, MD located? ▼
Mark Chin, MD is located at 1103 W LIBERTY ST, Farmington, MO, 63640. Phone: (573) 760-8488.
What is Mark Chin, MD's NPI number? ▼
Mark Chin, MD's National Provider Identifier (NPI) is 1104872381, issued on 05/26/2006.
Does Mark Chin, MD prescribe more brand-name or generic drugs? ▼
Mark Chin, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $20K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,810 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Mark Chin, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mark Chin, MD's most frequently prescribed drugs include Amlodipine Besylate, Metoprolol Tartrate, Nitroglycerin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Chin, MD accept Medicare? ▼
Mark Chin, MD appears in CMS Medicare data with 469 Part D claims and 122 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Chin, MD's credentials? ▼
Mark Chin, MD's NPI is 1104872381 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.
- 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
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.