NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1245443506 D.O.
Verify on CMS → Cori Millen, D.O.
Neurology Physician in Englewood, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 20,467 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
701
Medicare Part D claims · 114 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
60%
generic claims · 40% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.3K
85 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Cori Millen, D.O. filed 701 Medicare Part D claims in 2024 as a Neurology Physician in Englewood, Colorado, prescribing 60% generic.
- 701
- Part D claims, 2024
- 60%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥70th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Cori Millen, D.O.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1245443506), first enumerated 05/07/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 701 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.3K in reported industry payments (85 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1245443506 · Neurology Physician
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1245443506
- ENUM-MID 2007
- TAX-MID 20K Neurology Physician
- RX-LIGHT 701
- BOOK-THIN 393 in Colorado
- PHOTO-ENUM David Johnson, M.D. · 2007
Cori Millen, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
701 ≥ 70th percentile 70% of 1,416,883 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 · 2024
✓
Board certification likely (heuristic, not verified)
Cori Millen, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Cori Millen, D.O.?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
701 48% vs specialty avg
Specialty distribution in Colorado
How Neurology Physician compares to other specialties among Colorado 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 Neurology Physician. 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).
Practice Address
Provider Details
| NPI | 1245443506 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 05/07/2007 |
Hospital and facility affiliations
Facilities where Cori Millen, D.O. 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.
Poudre Valley Medical Group LLC
Englewood, CO
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 Cori Millen, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$1.3K
Largest payer
ABBVIE 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 · Above average
Cori Millen, D.O. - brand share 40.0%
Neurology Physician average
40% brand-name claims vs 60% generic, on 701 2024 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 2024.
701
Total Claims
$364K
Total Drug Cost
114
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,117.533
- Total Day Supply
- 31,340
- Brand vs Generic
- 40% brand / 60% generic
- Brand Drug Cost
- $332K
- Generic Drug Cost
- $32K
Patient Demographics
- Average Patient Age
- 64.2 years
- Avg HCC Risk Score
- 1.06
- Gender Split
- 82% female / 18% male
- Age Distribution
- <65: 36, 65-74: 65, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Cori Millen, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Botox
Botox
91 claims
- Naratriptan Hcl
Naratriptan Hcl
45 claims
- Emgality Pen
Emgality Pen
41 claims
- Gabapentin
Gabapentin
37 claims
- Sumatriptan Succin… 29
Sumatriptan Succinate
29 claims
- Qulipta 26
Qulipta
26 claims
- Baclofen 25
Baclofen
25 claims
- Topiramate 25
Topiramate
25 claims
| Drug | Claims |
|---|---|
| Botox Onabotulinumtoxina | 91 |
| Naratriptan Hcl | 45 |
| Emgality Pen Galcanezumab-Gnlm | 41 |
| Gabapentin | 37 |
| Sumatriptan Succinate | 29 |
| Qulipta Atogepant | 26 |
| Baclofen | 25 |
| Topiramate | 25 |
| Ubrelvy Ubrogepant | 24 |
| Nurtec Odt Rimegepant Sulfate | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Cori Millen, D.O. fits within the Neurology Physician landscape nationally.
20,467
Neurology Physician Providers in US
54
States with Neurology Physician
1,356
Avg Claims per Provider
Cori Millen, D.O.'s 701 claims are below the specialty average of 1,356.
Nationwide Neurology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Millen, both outside Colorado so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Neurology Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Millen.
One of 393 Neurology Physician providers enrolled in Colorado, 5 are shown here.
Dr. Elizabeth Ackley
M.D.
Aurora, CO
Dr. Gregory Ales
D.O.
Colorado Springs, CO
Dr. Mihaela Alexander
M.D.
Littleton, CO
Hayder Alhashim
Aurora, CO
Dr. Maysun Ali
D.O.
Englewood, CO
Compare Neurology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Cori Millen, D.O.'s specialty? ▼
Cori Millen, D.O. specializes in Neurology Physician and practices in Englewood, Colorado. Credentials: D.O..
How much does Cori Millen, D.O. prescribe under Medicare Part D? ▼
In 2024, Cori Millen, D.O. wrote 701 Medicare Part D claims totaling $364K in drug costs for 114 beneficiaries.
Where is Cori Millen, D.O. located? ▼
Cori Millen, D.O. is located at 175 INVERNESS DR W STE 300, Englewood, CO, 80112. Phone: (720) 516-0634.
What is Cori Millen, D.O.'s NPI number? ▼
Cori Millen, D.O.'s National Provider Identifier (NPI) is 1245443506, issued on 05/07/2007.
Does Cori Millen, D.O. prescribe more brand-name or generic drugs? ▼
Cori Millen, D.O.'s prescribing is 40% brand-name and 60% generic drugs by claim count, with $332K in brand drug costs.
How many Neurology Physician providers are there in the US? ▼
There are 20,467 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,356 Medicare Part D claims per year.
What drugs does Cori Millen, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, Cori Millen, D.O.'s most frequently prescribed drugs include Botox, Naratriptan Hcl, Emgality Pen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cori Millen, D.O. accept Medicare? ▼
Cori Millen, D.O. appears in CMS Medicare data with 701 Part D claims and 114 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cori Millen, D.O.'s credentials? ▼
Cori Millen, D.O.'s NPI is 1245443506 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.