NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1457452260 M.D.
Verify on CMS → Ajit Chauhan, M.D.
Internal Medicine Physician in Danville, Virginia.
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
6K
Medicare Part D claims · 300 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$116.02
6 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
Ajit Chauhan, M.D. filed 5,970 Medicare Part D claims in 2023 as a Internal Medicine Physician in Danville, Virginia, prescribing 91% generic.
- 6K
- Part D claims, 2023
- 91%
- generic prescribing
- $116.02
- 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.
Ajit Chauhan, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,970 Top 5% higher than 95% 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
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Board-eligible specialty (heuristic, not verified)
Ajit Chauhan, M.D. 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 Ajit Chauhan, M.D.?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
5,970 120% vs specialty avg
Specialty distribution in Virginia
How Internal Medicine Physician compares to other specialties among Virginia 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).
Ajit Chauhan, M.D. appears in the CMS NPPES registry as an Internal Medicine Physician provider holding M.D. credentials at 1045 MAIN ST, Danville, VA, 24541, with a listed phone of (434) 792-4400. NPI 1457452260 was issued on 09/26/2006.
Medicare Part D records for calendar year 2023 show 5,970 prescription claims written by this provider, covering 300 Medicare beneficiaries and totaling roughly $420K in drug spend, split 9% brand-name and 91% 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 | 1457452260 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/26/2006 |
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 Ajit Chauhan, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$116
Largest payer
MEDICOMP 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 · Generic-heavy
Ajit Chauhan, M.D. - brand share 9.0%
Internal Medicine Physician average
9% brand-name claims vs 91% generic, on 5,970 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.
5,970
Total Claims
$420K
Total Drug Cost
300
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,942
- Total Day Supply
- 351,763
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $291K
- Generic Drug Cost
- $128K
- Antibiotic Claims
- 53
Patient Demographics
- Average Patient Age
- 71.8 years
- Avg HCC Risk Score
- 2.13
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 67, 65-74: 111, 75-84: 81, 85+: 41
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ajit Chauhan, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Montelukast Sodium
Montelukast Sodium
475 claims
- Olmesartan Medoxomil
Olmesartan Medoxomil
401 claims
- Warfarin Sodium
Warfarin Sodium
330 claims
- Amlodipine Besylate
Amlodipine Besylate
278 claims
- Atorvastatin Calcium
Atorvastatin Calcium
249 claims
- Losartan Potassium
Losartan Potassium
229 claims
- Metoprolol Succinate 182
Metoprolol Succinate
182 claims
- Clopidogrel 166
Clopidogrel
166 claims
| Drug | Claims |
|---|---|
| Montelukast Sodium | 475 |
| Olmesartan Medoxomil | 401 |
| Warfarin Sodium | 330 |
| Amlodipine Besylate | 278 |
| Atorvastatin Calcium | 249 |
| Losartan Potassium | 229 |
| Metoprolol Succinate | 182 |
| Clopidogrel Clopidogrel Bisulfate | 166 |
| Carvedilol | 137 |
| Levothyroxine Sodium | 128 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Ajit Chauhan, M.D. 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
Ajit Chauhan, M.D.'s 5,970 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Chauhan.
Dr. Caren Aaron
M.D.
Martinsville, VA
Dr. Michael Abadier
DO
Gloucester, VA
Dr. Salma Abbas
MD
Richmond, VA
Dr. Gohar Abbasi
MD
Chester, VA
Dr. Mustafa Abbasi
MD
Alexandria, VA
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 Virginia 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.
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Frequently Asked Questions
What is Ajit Chauhan, M.D.'s specialty? ▼
Ajit Chauhan, M.D. specializes in Internal Medicine Physician and practices in Danville, Virginia. Credentials: M.D..
How much does Ajit Chauhan, M.D. prescribe under Medicare Part D? ▼
In 2023, Ajit Chauhan, M.D. wrote 5,970 Medicare Part D claims totaling $420K in drug costs for 300 beneficiaries.
Where is Ajit Chauhan, M.D. located? ▼
Ajit Chauhan, M.D. is located at 1045 MAIN ST, Danville, VA, 24541. Phone: (434) 792-4400.
What is Ajit Chauhan, M.D.'s NPI number? ▼
Ajit Chauhan, M.D.'s National Provider Identifier (NPI) is 1457452260, issued on 09/26/2006.
Does Ajit Chauhan, M.D. prescribe more brand-name or generic drugs? ▼
Ajit Chauhan, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $291K 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.
What drugs does Ajit Chauhan, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ajit Chauhan, M.D.'s most frequently prescribed drugs include Montelukast Sodium, Olmesartan Medoxomil, Warfarin Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ajit Chauhan, M.D. accept Medicare? ▼
Ajit Chauhan, M.D. appears in CMS Medicare data with 5,970 Part D claims and 300 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ajit Chauhan, M.D.'s credentials? ▼
Ajit Chauhan, M.D.'s NPI is 1457452260 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.
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.