NPI registry status
Active
2026 NPPES data Chiropractor NPI 1013029735 DC, MSN, ARNP
Verify on CMS → Randall Wiley, DC, MSN, ARNP
Chiropractor in Leonardtown, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 95,504 in Chiropractor, 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
733
Medicare Part D claims · 76 beneficiaries · Chiropractor avg: 824
Generic prescribing
59%
generic claims · 37% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Randall Wiley, DC, MSN, ARNP filed 733 Medicare Part D claims in 2023 as a Chiropractor in Leonardtown, Maryland, prescribing 59% generic.
- 733
- Part D claims, 2023
- 59%
- generic prescribing
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.
Randall Wiley, DC, MSN, ARNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
733 Top 29% higher than 71% 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
What does the federal data show about Randall Wiley, DC, MSN, ARNP?
Quality data not reportedPrimary specialty
Chiropractor
Medicare Part D claims
733 11% vs specialty avg
Specialty distribution in Maryland
How Chiropractor compares to other specialties among Maryland 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 Chiropractor. 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).
Randall Wiley, DC, MSN, ARNP appears in the CMS NPPES registry as a Chiropractor provider holding DC, MSN, ARNP credentials at 23511 HOLLYWOOD RD STE 2, Leonardtown, MD, 20650, with a listed phone of (301) 997-0611. NPI 1013029735 was issued on 08/31/2006.
Medicare Part D records for calendar year 2023 show 733 prescription claims written by this provider, covering 76 Medicare beneficiaries and totaling roughly $121K in drug spend, split 37% brand-name and 59% generic by claim count, with an opioid prescribing rate of 5.5%.
Chiropractor is a high-volume specialty nationwide, with 95,504 enrolled providers across 56 states and an average of 824 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 | 1013029735 |
|---|---|
| Specialty | Chiropractor |
| Credentials | DC, MSN, ARNP |
| Gender | Male |
| NPI Issued | 08/31/2006 |
Hospital and facility affiliations
Facilities where Randall Wiley, DC, MSN, ARNP 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.
Medstar Medical Group II LLC
Leonardtown, MD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Above average
Randall Wiley, DC, MSN, ARNP - brand share 37.0%
Chiropractor average
37% brand-name claims vs 59% generic, on 733 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.
733
Total Claims
$121K
Total Drug Cost
76
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,109
- Total Day Supply
- 29,503
- Brand vs Generic
- 37% brand / 59% generic
- Brand Drug Cost
- $115K
- Generic Drug Cost
- $5K
- Opioid Claims
- 40 (5.5% rate)
- Antibiotic Claims
- 31
Patient Demographics
- Average Patient Age
- 69.5 years
- Avg HCC Risk Score
- 1.13
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 20, 65-74: 34, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Randall Wiley, DC, MSN, ARNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
38 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
29 claims
- Levothyroxine Sodium
Levothyroxine Sodium
27 claims
- Lisinopril
Lisinopril
26 claims
- Ibuprofen
Ibuprofen
24 claims
- Jardiance
Jardiance
22 claims
- Losartan Potassium
Losartan Potassium
22 claims
- Pantoprazole Sodium
Pantoprazole Sodium
22 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 38 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 29 |
| Levothyroxine Sodium | 27 |
| Lisinopril | 26 |
| Ibuprofen | 24 |
| Jardiance Empagliflozin | 22 |
| Losartan Potassium | 22 |
| Pantoprazole Sodium | 22 |
| Pregabalin | 22 |
| Meloxicam | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Chiropractor Overview
How Randall Wiley, DC, MSN, ARNP fits within the Chiropractor landscape nationally.
95,504
Chiropractor Providers in US
56
States with Chiropractor
824
Avg Claims per Provider
Randall Wiley, DC, MSN, ARNP's 733 claims are below the specialty average of 824.
Nearby Chiropractor Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Wiley.
Dr. Fredrick Aaron
DC
College Park, MD
Ashkan Aazami
Landover Hills, MD
Garrett Abadom
Laurel, MD
Victor Abadom
Baltimore, MD
Dr. Paul Abosh
DC
Nottingham, MD
Compare Chiropractor 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 Maryland medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Chiropractor 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 Randall Wiley, DC, MSN, ARNP's specialty? ▼
Randall Wiley, DC, MSN, ARNP specializes in Chiropractor and practices in Leonardtown, Maryland. Credentials: DC, MSN, ARNP.
How much does Randall Wiley, DC, MSN, ARNP prescribe under Medicare Part D? ▼
In 2023, Randall Wiley, DC, MSN, ARNP wrote 733 Medicare Part D claims totaling $121K in drug costs for 76 beneficiaries.
Where is Randall Wiley, DC, MSN, ARNP located? ▼
Randall Wiley, DC, MSN, ARNP is located at 23511 HOLLYWOOD RD STE 2, Leonardtown, MD, 20650. Phone: (301) 997-0611.
What is Randall Wiley, DC, MSN, ARNP's NPI number? ▼
Randall Wiley, DC, MSN, ARNP's National Provider Identifier (NPI) is 1013029735, issued on 08/31/2006.
Does Randall Wiley, DC, MSN, ARNP prescribe more brand-name or generic drugs? ▼
Randall Wiley, DC, MSN, ARNP's prescribing is 37% brand-name and 59% generic drugs by claim count, with $115K in brand drug costs.
Does Randall Wiley, DC, MSN, ARNP prescribe opioids? ▼
Yes, Randall Wiley, DC, MSN, ARNP had 40 opioid claims in 2023 with an opioid prescribing rate of 5.5%.
How many Chiropractor providers are there in the US? ▼
There are 95,504 Chiropractor providers across 56 states in the US. The average Chiropractor provider writes 824 Medicare Part D claims per year.
What drugs does Randall Wiley, DC, MSN, ARNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Randall Wiley, DC, MSN, ARNP's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Albuterol Sulfate Hfa, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Randall Wiley, DC, MSN, ARNP accept Medicare? ▼
Randall Wiley, DC, MSN, ARNP appears in CMS Medicare data with 733 Part D claims and 76 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Randall Wiley, DC, MSN, ARNP's credentials? ▼
Randall Wiley, DC, MSN, ARNP's NPI is 1013029735 with credentials DC, MSN, ARNP. 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.