NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1265041818 MD
Verify on CMS → Vaishnavi Ganesan, MD
Internal Medicine Physician in Columbia, 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 172,737 in Internal Medicine 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
41
Medicare Part D claims · 17 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
51%
generic claims · 49% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$391.54
4 payments · CMS Open Payments (Sunshine Act)
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
Vaishnavi Ganesan, MD filed 41 Medicare Part D claims in 2023 as a Internal Medicine Physician in Columbia, Missouri, prescribing 51% generic.
- 41
- Part D claims, 2023
- 51%
- generic prescribing
- $391.54
- industry payments (Sunshine Act)
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.
Vaishnavi Ganesan, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
41 0th percentile higher than 0% 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-eligible specialty (heuristic, not verified)
Vaishnavi Ganesan, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Vaishnavi Ganesan, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
41 98% vs specialty avg
Specialty distribution in Missouri
How Internal Medicine 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 Internal Medicine 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).
Vaishnavi Ganesan, MD appears in the CMS NPPES registry as an Internal Medicine Physician provider holding MD credentials at 1 HOSPITAL DR, Columbia, MO, 65212, with a listed phone of (573) 882-4141. NPI 1265041818 was issued on 07/29/2020.
Medicare Part D records for calendar year 2023 show 41 prescription claims written by this provider, covering 17 Medicare beneficiaries and totaling roughly $10K in drug spend, split 49% brand-name and 51% generic by claim count.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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 | 1265041818 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 07/29/2020 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Vaishnavi Ganesan, MD. Source: openpaymentsdata.cms.gov.
Total received
$392
Largest payer
Amgen Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Above average
Vaishnavi Ganesan, MD - brand share 49.0%
Internal Medicine Physician average
49% brand-name claims vs 51% generic, on 41 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.
41
Total Claims
$10K
Total Drug Cost
17
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 56
- Total Day Supply
- 1,557
- Brand vs Generic
- 49% brand / 51% generic
- Brand Drug Cost
- $10K
- Generic Drug Cost
- $216
Patient Demographics
- Average Patient Age
- 68.2 years
- Avg HCC Risk Score
- 1.67
Internal Medicine Physician Overview
How Vaishnavi Ganesan, MD fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Vaishnavi Ganesan, MD's 41 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Ganesan.
Dr. Betty Abban
M.D.
Springfield, MO
Dr. Amer Abbas
MD
Chesterfield, MO
Dr. Marghoob Abbas
M.D.
St. Joseph, MO
Dr. Muhammad Khalid Abbas
M.D.
Springfield, MO
Dr. Sundas Abbas
MD
Richmond Heights, MO
Compare Internal Medicine 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 Internal Medicine 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
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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
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Frequently Asked Questions
What is Vaishnavi Ganesan, MD's specialty? ▼
Vaishnavi Ganesan, MD specializes in Internal Medicine Physician and practices in Columbia, Missouri. Credentials: MD.
How much does Vaishnavi Ganesan, MD prescribe under Medicare Part D? ▼
In 2023, Vaishnavi Ganesan, MD wrote 41 Medicare Part D claims totaling $10K in drug costs for 17 beneficiaries.
Where is Vaishnavi Ganesan, MD located? ▼
Vaishnavi Ganesan, MD is located at 1 HOSPITAL DR, Columbia, MO, 65212. Phone: (573) 882-4141.
What is Vaishnavi Ganesan, MD's NPI number? ▼
Vaishnavi Ganesan, MD's National Provider Identifier (NPI) is 1265041818, issued on 07/29/2020.
Does Vaishnavi Ganesan, MD prescribe more brand-name or generic drugs? ▼
Vaishnavi Ganesan, MD's prescribing is 49% brand-name and 51% generic drugs by claim count, with $10K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
Does Vaishnavi Ganesan, MD accept Medicare? ▼
Vaishnavi Ganesan, MD appears in CMS Medicare data with 41 Part D claims and 17 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Vaishnavi Ganesan, MD's credentials? ▼
Vaishnavi Ganesan, MD's NPI is 1265041818 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
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.