NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1336520576 MD
Verify on CMS → David Villafuerte Martinez, MD
Internal Medicine Physician in Michigan City, 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 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
2K
Medicare Part D claims · 366 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
49%
generic claims · 51% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$699.5
30 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
David Villafuerte Martinez, MD carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 1,671 Medicare Part D claims in 2023.
- 75/100
- CMS neutral score · not measured
- 2K
- Part D claims, 2023
- 49%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
David Villafuerte Martinez, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,671 ≥ 82nd percentile 82% 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)
David Villafuerte Martinez, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 David Villafuerte Martinez, MD?
CMS neutral score, not measuredPrimary specialty
Internal Medicine Physician
Medicare Part D claims
1,671 38% vs specialty avg
MIPS final score
75/100
Specialty distribution in Indiana
How Internal Medicine Physician compares to other specialties among Indiana providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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).
David Villafuerte Martinez, MD appears in the CMS NPPES registry as an Internal Medicine Physician provider holding MD credentials at 3500 FRANCISCAN WAY STE 400, Michigan City, IN, 46360, with a listed phone of (219) 861-8785. NPI 1336520576 was issued on 06/12/2015.
Medicare Part D records for calendar year 2023 show 1,671 prescription claims written by this provider, covering 366 Medicare beneficiaries and totaling roughly $752K in drug spend, split 51% brand-name and 49% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider carries a Final Score of 75/100 for the 2023 performance year, but CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score: this is the neutral performance threshold CMS assigns where nothing was scored, so it is not comparable with clinicians whose score was measured.
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 | 1336520576 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/12/2015 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Individual
Hospital and facility affiliations
Facilities where David Villafuerte Martinez, 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.
Franciscan Physician Network
Michigan City, IN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 David Villafuerte Martinez, MD. Source: openpaymentsdata.cms.gov.
Total received
$699
Largest payer
Regeneron Healthcare Solutions, 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 · Brand-heavy
David Villafuerte Martinez, MD - brand share 51.0%
Internal Medicine Physician average
51% brand-name claims vs 49% generic, on 1,671 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.
1,671
Total Claims
$752K
Total Drug Cost
366
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,198
- Total Day Supply
- 60,966
- Brand vs Generic
- 51% brand / 49% generic
- Brand Drug Cost
- $716K
- Generic Drug Cost
- $36K
- Antibiotic Claims
- 86
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 2.27
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 41, 65-74: 167, 75-84: 138, 85+: 20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Villafuerte Martinez, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trelegy Ellipta
Trelegy Ellipta
278 claims
- Prednisone
Prednisone
207 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
205 claims
- Breztri Aerosphere
Breztri Aerosphere
121 claims
- Montelukast Sodium 93
Montelukast Sodium
93 claims
- Breo Ellipta 73
Breo Ellipta
73 claims
- Fluticasone Propio… 65
Fluticasone Propionate
65 claims
- Symbicort 51
Symbicort
51 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 278 |
| Prednisone | 207 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 205 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 121 |
| Montelukast Sodium | 93 |
| Breo Ellipta Fluticasone/Vilanterol | 73 |
| Fluticasone Propionate | 65 |
| Symbicort Budesonide/Formoterol Fumarate | 51 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 49 |
| Azithromycin | 45 |
* 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 David Villafuerte Martinez, 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
David Villafuerte Martinez, MD's 1,671 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as Villafuerte Martinez.
Dr. Sami Aasar
MD
Fishers, IN
Dr. Paolo Abada
MD
Indianapolis, IN
Dr. Asad Abbas
DO
Richmond, IN
Dr. Faheem Abbasi
MD
Indianapolis, IN
Dr. Hayder Abbood
MD
Indianapolis, IN
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 Indiana 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 David Villafuerte Martinez, MD's specialty? ▼
David Villafuerte Martinez, MD specializes in Internal Medicine Physician and practices in Michigan City, Indiana. Credentials: MD.
How much does David Villafuerte Martinez, MD prescribe under Medicare Part D? ▼
In 2023, David Villafuerte Martinez, MD wrote 1,671 Medicare Part D claims totaling $752K in drug costs for 366 beneficiaries.
What is David Villafuerte Martinez, MD's Medicare quality score? ▼
David Villafuerte Martinez, MD has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is David Villafuerte Martinez, MD located? ▼
David Villafuerte Martinez, MD is located at 3500 FRANCISCAN WAY STE 400, Michigan City, IN, 46360. Phone: (219) 861-8785.
What is David Villafuerte Martinez, MD's NPI number? ▼
David Villafuerte Martinez, MD's National Provider Identifier (NPI) is 1336520576, issued on 06/12/2015.
Does David Villafuerte Martinez, MD prescribe more brand-name or generic drugs? ▼
David Villafuerte Martinez, MD's prescribing is 51% brand-name and 49% generic drugs by claim count, with $716K 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 David Villafuerte Martinez, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, David Villafuerte Martinez, MD's most frequently prescribed drugs include Trelegy Ellipta, Prednisone, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Villafuerte Martinez, MD accept Medicare? ▼
David Villafuerte Martinez, MD appears in CMS Medicare data with 1,671 Part D claims and 366 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Villafuerte Martinez, MD's credentials? ▼
David Villafuerte Martinez, MD's NPI is 1336520576 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.