NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1245218973 MD
Verify on CMS → Mark Souder, MD
Family Medicine Physician in Auburn, 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 147,760 in Family 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
11K
Medicare Part D claims · 467 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
85%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.2/100
▼ 10 pts below national avg 83.5 · Mid-tier
Industry payments
$4.0K
151 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Mark Souder, MD reported a CMS MIPS final score of 73.2/100 - below the 83.5 national average - and filed 10,600 Medicare Part D claims in 2023.
- 73.2/100
- MIPS score · -10 vs avg
- 11K
- Part D claims, 2023
- 85%
- 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.
CMS NPPES provider registry desk
NPI 1245218973 · Family Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-LOW · RX-HEAVY · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1245218973
- ENUM-LEGACY 2006
- TAX-MEGA 148K Family Medicine
- MIPS-LOW 73.2/100
- RX-HEAVY 11K claims
- BOOK-LIGHT 3,321 in Indiana
- PHOTO-FINISH Nison Abayev · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Souder · this pr…
Souder · this provider
73.2 MIPS pts
- Jonathan Becker …
Jonathan Becker
73.2 MIPS pts
- Nison Abayev · n…
Nison Abayev
73.2 MIPS pts
- Mini Aggarwal · …
Mini Aggarwal
73.2 MIPS pts
- Leticia Allen · …
Leticia Allen
73.2 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Mark Souder, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
73 ≥ 11th percentile 11% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Mark Souder, MD sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mark Souder, MD writes more Part D claims than 90% of them and scores higher on MIPS quality than 14% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Mark Souder, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mark Souder, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Souder, MD?
Below national averagePrimary specialty
Family Medicine Physician
Medicare Part D claims
10,600 210% vs specialty avg
MIPS final score
73.2/100 10.3 pts vs avg
Specialty distribution in Indiana
How Family Medicine Physician compares to other specialties among Indiana providers
Medicare quality performance, MIPS
Mark Souder, MD's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 73.2/100
- vs 83.5 national avg · 2023 performance year
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 | 1245218973 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 01/03/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
73.213
Final Score
Measured-score avg: 83.5
62.5172
Quality
60.6872
Cost
Reporting: Individual
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 Mark Souder, MD. Source: openpaymentsdata.cms.gov.
Total received
$4.0K
Largest payer
AstraZeneca Pharmaceuticals LP
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 · Typical
Mark Souder, MD - brand share 14.0%
Family Medicine Physician average
14% brand-name claims vs 85% generic, on 10,600 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.
10,600
Total Claims
$1.2M
Total Drug Cost
467
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 22,042
- Total Day Supply
- 643,138
- Brand vs Generic
- 14% brand / 85% generic
- Brand Drug Cost
- $994K
- Generic Drug Cost
- $236K
- Opioid Claims
- 305 (2.9% rate)
- Antibiotic Claims
- 294
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 1.26
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 53, 65-74: 249, 75-84: 123, 85+: 42
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mark Souder, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
626 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
318 claims
- Pantoprazole Sodium
Pantoprazole Sodium
317 claims
- Gabapentin
Gabapentin
282 claims
- Metoprolol Succinate
Metoprolol Succinate
253 claims
- Losartan Potassium 225
Losartan Potassium
225 claims
- Lisinopril 210
Lisinopril
210 claims
- Allopurinol 191
Allopurinol
191 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 626 |
| Rosuvastatin Calcium | 318 |
| Pantoprazole Sodium | 317 |
| Gabapentin | 282 |
| Metoprolol Succinate | 253 |
| Losartan Potassium | 225 |
| Lisinopril | 210 |
| Allopurinol | 191 |
| Alprazolam | 190 |
| Atorvastatin Calcium | 187 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Mark Souder, MD fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Mark Souder, MD's 10,600 claims are above the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Souder, both outside Indiana so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (73.2 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as Souder.
One of 3,321 Family Medicine Physician providers enrolled in Indiana, 5 are shown here.
Dr. Faryaal Aamir
MD
Boonville, IN
Dr. Troy Abbott
MD
Muncie, IN
Dr. Musa Abdalla
M. D.
Lagrange, IN
Dr. Azra Abdullah
M.D.
Indianapolis, IN
Dr. Daniel Abel
M.D.
Mishawaka, IN
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mark Souder, MD's specialty? ▼
Mark Souder, MD specializes in Family Medicine Physician and practices in Auburn, Indiana. Credentials: MD.
How much does Mark Souder, MD prescribe under Medicare Part D? ▼
In 2023, Mark Souder, MD wrote 10,600 Medicare Part D claims totaling $1.2M in drug costs for 467 beneficiaries.
What is Mark Souder, MD's Medicare quality score? ▼
Mark Souder, MD has a CMS MIPS Final Score of 73.2/100 (Quality: 62.5, Cost: 60.7). 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 Mark Souder, MD located? ▼
Mark Souder, MD is located at 1310 E 7TH ST, Auburn, IN, 46706. Phone: (260) 925-0305.
What is Mark Souder, MD's NPI number? ▼
Mark Souder, MD's National Provider Identifier (NPI) is 1245218973, issued on 01/03/2006.
Does Mark Souder, MD prescribe more brand-name or generic drugs? ▼
Mark Souder, MD's prescribing is 14% brand-name and 85% generic drugs by claim count, with $994K in brand drug costs.
Does Mark Souder, MD prescribe opioids? ▼
Yes, Mark Souder, MD had 305 opioid claims in 2023 with an opioid prescribing rate of 2.9%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Mark Souder, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mark Souder, MD's most frequently prescribed drugs include Levothyroxine Sodium, Rosuvastatin Calcium, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Souder, MD accept Medicare? ▼
Mark Souder, MD appears in CMS Medicare data with 10,600 Part D claims and 467 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Souder, MD's credentials? ▼
Mark Souder, MD's NPI is 1245218973 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.