NPI registry status
Active
2026 NPPES data Chiropractor NPI 1376622829 DC, ND
Verify on CMS → David Milroy, DC, ND
Chiropractor in Salem, Oregon.
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
260
Medicare Part D claims · 35 beneficiaries · Chiropractor avg: 824
Generic prescribing
93%
generic claims · 7% 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
David Milroy, DC, ND filed 260 Medicare Part D claims in 2023 as a Chiropractor in Salem, Oregon, prescribing 93% generic.
- 260
- Part D claims, 2023
- 93%
- 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.
David Milroy, DC, ND's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
260 49th percentile higher than 49% 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 David Milroy, DC, ND?
Quality data not reportedPrimary specialty
Chiropractor
Medicare Part D claims
260 68% vs specialty avg
Specialty distribution in Oregon
How Chiropractor compares to other specialties among Oregon 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).
David Milroy, DC, ND appears in the CMS NPPES registry as a Chiropractor provider holding DC, ND credentials at 4555 LIBERTY RD S, Salem, OR, 97302, with a listed phone of (503) 363-6868. NPI 1376622829 was issued on 11/03/2006.
Medicare Part D records for calendar year 2023 show 260 prescription claims written by this provider, covering 35 Medicare beneficiaries and totaling roughly $19K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 7.3%.
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 | 1376622829 |
|---|---|
| Specialty | Chiropractor |
| Credentials | DC, ND |
| Gender | Male |
| NPI Issued | 11/03/2006 |
Brand vs generic prescribing mix · Generic-heavy
David Milroy, DC, ND - brand share 7.0%
Chiropractor average
7% brand-name claims vs 93% generic, on 260 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.
260
Total Claims
$19K
Total Drug Cost
35
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 646
- Total Day Supply
- 18,834
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $7K
- Generic Drug Cost
- $12K
- Opioid Claims
- 19 (7.3% rate)
Patient Demographics
- Average Patient Age
- 69.3 years
- Avg HCC Risk Score
- 0.64
- Gender Split
- 60% female / 40% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Milroy, DC, ND prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metformin Hcl Er
Metformin Hcl Er
40 claims
- Allopurinol
Allopurinol
31 claims
- Acyclovir
Acyclovir
19 claims
- Liothyronine Sodium
Liothyronine Sodium
19 claims
- Cytomel 11
Cytomel
11 claims
- Oxycodone Hcl 11
Oxycodone Hcl
11 claims
| Drug | Claims |
|---|---|
| Metformin Hcl Er Metformin Hcl | 40 |
| Allopurinol | 31 |
| Acyclovir | 19 |
| Liothyronine Sodium | 19 |
| Cytomel Liothyronine Sodium | 11 |
| Oxycodone Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Chiropractor Overview
How David Milroy, DC, ND fits within the Chiropractor landscape nationally.
95,504
Chiropractor Providers in US
56
States with Chiropractor
824
Avg Claims per Provider
David Milroy, DC, ND's 260 claims are below the specialty average of 824.
Nearby Chiropractor Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Milroy.
Dr. Anna Abbott
DC
Portland, OR
Dr. Scott Abrahamson
D.C.
Lake Oswego, OR
Dr. Kent Achtyes
D.C.
Portland, OR
Morgan Ackermann
Milwaukie, OR
Dr. Cory Adams
DC
Portland, OR
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 Oregon 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Oregon
Frequently Asked Questions
What is David Milroy, DC, ND's specialty? ▼
David Milroy, DC, ND specializes in Chiropractor and practices in Salem, Oregon. Credentials: DC, ND.
How much does David Milroy, DC, ND prescribe under Medicare Part D? ▼
In 2023, David Milroy, DC, ND wrote 260 Medicare Part D claims totaling $19K in drug costs for 35 beneficiaries.
Where is David Milroy, DC, ND located? ▼
David Milroy, DC, ND is located at 4555 LIBERTY RD S, Salem, OR, 97302. Phone: (503) 363-6868.
What is David Milroy, DC, ND's NPI number? ▼
David Milroy, DC, ND's National Provider Identifier (NPI) is 1376622829, issued on 11/03/2006.
Does David Milroy, DC, ND prescribe more brand-name or generic drugs? ▼
David Milroy, DC, ND's prescribing is 7% brand-name and 93% generic drugs by claim count, with $7K in brand drug costs.
Does David Milroy, DC, ND prescribe opioids? ▼
Yes, David Milroy, DC, ND had 19 opioid claims in 2023 with an opioid prescribing rate of 7.3%.
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 David Milroy, DC, ND prescribe most often? ▼
Based on 2023 Medicare Part D data, David Milroy, DC, ND's most frequently prescribed drugs include Metformin Hcl Er, Allopurinol, Acyclovir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Milroy, DC, ND accept Medicare? ▼
David Milroy, DC, ND appears in CMS Medicare data with 260 Part D claims and 35 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Milroy, DC, ND's credentials? ▼
David Milroy, DC, ND's NPI is 1376622829 with credentials DC, ND. 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.