NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1235577065 D.O.
Verify on CMS → Ryan Pappas, D.O.
Neurology Physician in Valparaiso, 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 19,885 in Neurology 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
1K
Medicare Part D claims · 341 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
83%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
88/100
▲ 5 pts above national avg 83.1 · Above neutral
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
Ryan Pappas, D.O. reported a CMS MIPS final score of 88/100 - above the 83.1 national average - and filed 1,331 Medicare Part D claims in 2023.
- 88/100
- MIPS score · +5 vs avg
- 1K
- Part D claims, 2023
- 83%
- 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.
Ryan Pappas, D.O.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
88 Top 46% higher than 54% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Ryan Pappas, D.O. sits
This provider among neurology physician peers
Across the 5,437 neurology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ryan Pappas, D.O. writes more Part D claims than 57% of them and scores higher on MIPS quality than 59% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one neurology physician peer from a representative sample of 60; the gold marker is Ryan Pappas, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Ryan Pappas, D.O. 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 Ryan Pappas, D.O.?
High performer (top quartile)Primary specialty
Neurology Physician
Medicare Part D claims
1,331 2% vs specialty avg
MIPS final score
88/100 4.9 pts vs avg
Specialty distribution in Indiana
How Neurology Physician compares to other specialties among Indiana providers
Medicare quality performance, MIPS
Ryan Pappas, D.O.'s 2023 MIPS final score plotted against the Neurology Physician national average
- MIPS Final Score
- 88/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Neurology Physician) - 88/100 vs national avg 83.1
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).
Ryan Pappas, D.O. appears in the CMS NPPES registry as a Neurology Physician provider holding D.O. credentials at 2000 ROOSEVELT RD STE 207, Valparaiso, IN, 46383, with a listed phone of (844) 774-3627. NPI 1235577065 was issued on 06/14/2013.
Medicare Part D records for calendar year 2023 show 1,331 prescription claims written by this provider, covering 341 Medicare beneficiaries and totaling roughly $343K in drug spend, split 16% brand-name and 83% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 88/100 for the 2023 performance year (Quality 74), compared with the national average of 83.1.
Neurology Physician is a mid-sized specialty nationwide, with 19,885 enrolled providers across 54 states and an average of 1,309 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 | 1235577065 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 06/14/2013 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
87.9565
Final Score
Avg: 83.1
74.048
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Brand vs generic prescribing mix · Typical
Ryan Pappas, D.O. - brand share 16.0%
Neurology Physician average
16% brand-name claims vs 83% generic, on 1,331 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.
1,331
Total Claims
$343K
Total Drug Cost
341
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,307
- Total Day Supply
- 68,275
- Brand vs Generic
- 16% brand / 83% generic
- Brand Drug Cost
- $270K
- Generic Drug Cost
- $73K
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 1.50
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 61, 65-74: 108, 75-84: 121, 85+: 51
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ryan Pappas, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Memantine Hcl
Memantine Hcl
167 claims
- Gabapentin
Gabapentin
103 claims
- Carbidopa-Levodopa
Carbidopa-Levodopa
95 claims
- Levetiracetam
Levetiracetam
75 claims
- Donepezil Hcl
Donepezil Hcl
74 claims
- Topiramate 43
Topiramate
43 claims
- Ubrelvy 41
Ubrelvy
41 claims
- Lacosamide 39
Lacosamide
39 claims
| Drug | Claims |
|---|---|
| Memantine Hcl | 167 |
| Gabapentin | 103 |
| Carbidopa-Levodopa Carbidopa/Levodopa | 95 |
| Levetiracetam | 75 |
| Donepezil Hcl | 74 |
| Topiramate | 43 |
| Ubrelvy Ubrogepant | 41 |
| Lacosamide | 39 |
| Carbamazepine | 37 |
| Primidone | 35 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Ryan Pappas, D.O. fits within the Neurology Physician landscape nationally.
19,885
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Ryan Pappas, D.O.'s 1,331 claims are above the specialty average of 1,309.
Nearby Neurology Physician Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as Pappas.
Dr. Dilawer Abbas
MD
Lafayette, IN
Dr. Ashraf Ahmed
MD
Evansville, IN
Dr. Jayme Ahmed
M.D.
Indianapolis, IN
Dr. Syed Ahmed
M.D.
Hammond, IN
Dr. Ender Akan
M.D.
Munster, IN
Compare Neurology 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 Neurology 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 Ryan Pappas, D.O.'s specialty? ▼
Ryan Pappas, D.O. specializes in Neurology Physician and practices in Valparaiso, Indiana. Credentials: D.O..
How much does Ryan Pappas, D.O. prescribe under Medicare Part D? ▼
In 2023, Ryan Pappas, D.O. wrote 1,331 Medicare Part D claims totaling $343K in drug costs for 341 beneficiaries.
What is Ryan Pappas, D.O.'s Medicare quality score? ▼
Ryan Pappas, D.O. has a CMS MIPS Final Score of 88/100 (Quality: 74). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ryan Pappas, D.O. located? ▼
Ryan Pappas, D.O. is located at 2000 ROOSEVELT RD STE 207, Valparaiso, IN, 46383. Phone: (844) 774-3627.
What is Ryan Pappas, D.O.'s NPI number? ▼
Ryan Pappas, D.O.'s National Provider Identifier (NPI) is 1235577065, issued on 06/14/2013.
Does Ryan Pappas, D.O. prescribe more brand-name or generic drugs? ▼
Ryan Pappas, D.O.'s prescribing is 16% brand-name and 83% generic drugs by claim count, with $270K in brand drug costs.
How many Neurology Physician providers are there in the US? ▼
There are 19,885 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Ryan Pappas, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Ryan Pappas, D.O.'s most frequently prescribed drugs include Memantine Hcl, Gabapentin, Carbidopa-Levodopa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ryan Pappas, D.O. accept Medicare? ▼
Ryan Pappas, D.O. appears in CMS Medicare data with 1,331 Part D claims and 341 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ryan Pappas, D.O.'s credentials? ▼
Ryan Pappas, D.O.'s NPI is 1235577065 with credentials D.O.. 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
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.