NPI registry status
Active
2026 NPPES data Optometrist NPI 1528122140 O.D.
Verify on CMS → Corey Christensen, O.D.
Optometrist in Midwest City, Oklahoma.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 61,426 in Optometrist, 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
99
Medicare Part D claims · 49 beneficiaries · Optometrist avg: 279
Generic prescribing
49%
generic claims · 51% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.0K
19 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Corey Christensen, O.D. filed 99 Medicare Part D claims in 2024 as an Optometrist in Midwest City, Oklahoma, prescribing 49% generic.
- 99
- Part D claims, 2024
- 49%
- generic prescribing
- $2.0K
- industry payments (Sunshine Act)
- ≥0th
- 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 Corey Christensen, O.D.
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 1528122140), first enumerated 12/20/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 99 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- 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
$2.0K in reported industry payments (19 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 1528122140 · Optometrist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1528122140
- ENUM-LEGACY 2006
- TAX-MEGA 61K Optometrist
- RX-TRACE 99
- BOOK-LIGHT 873 in Oklahoma
- PHOTO-ENUM Verne Dagenais · 2006
Corey Christensen, O.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
99 ≥ 0th percentile 0% 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
What does the federal data show about Corey Christensen, O.D.?
Quality data not reportedPrimary specialty
Optometrist
Medicare Part D claims
99 65% vs specialty avg
Specialty distribution in Oklahoma
How Optometrist compares to other specialties among Oklahoma 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 Optometrist. 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 | 1528122140 |
|---|---|
| Specialty | Optometrist |
| Credentials | O.D. |
| Gender | Male |
| NPI Issued | 12/20/2006 |
Hospital and facility affiliations
Facilities where Corey Christensen, O.D. 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.
Mid-Del Vision Source, PLLC
Midwest City, OK
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 Corey Christensen, O.D.. Source: openpaymentsdata.cms.gov.
Total received
$2.0K
Largest payer
Bausch & Lomb Americas 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 · Brand-heavy
Corey Christensen, O.D. - brand share 51.0%
Optometrist average
51% brand-name claims vs 49% generic, on 99 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.
99
Total Claims
$25K
Total Drug Cost
49
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 177
- Total Day Supply
- 4,841
- Brand vs Generic
- 51% brand / 49% generic
- Brand Drug Cost
- $23K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 1.42
- Gender Split
- 69% female / 31% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Latanoprost | 24 |
| Loteprednol Etabonate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Corey Christensen, O.D. fits within the Optometrist landscape nationally.
61,426
Optometrist Providers in US
56
States with Optometrist
279
Avg Claims per Provider
Corey Christensen, O.D.'s 99 claims are below the specialty average of 279.
Nationwide Optometrist peers with similar MIPS or enrollment year
Two federal-record peer sets for Christensen, both outside Oklahoma so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Optometrist Providers in Oklahoma
Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as Christensen.
One of 873 Optometrist providers enrolled in Oklahoma, 5 are shown here.
Candace Acord
O.D.L
Harrah, OK
Dr. Britton Adams
OD
Shawnee, OK
Dr. Daniel Adams
O.D.
Stillwater, OK
Dr. Kaylee Aguilar
OD
Edmond, OK
Faisal Ahmed
DOCTOR OF OPTOMETRY
Midwest City, OK
Compare Optometrist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Corey Christensen, O.D.'s specialty? ▼
Corey Christensen, O.D. specializes in Optometrist and practices in Midwest City, Oklahoma. Credentials: O.D..
How much does Corey Christensen, O.D. prescribe under Medicare Part D? ▼
In 2024, Corey Christensen, O.D. wrote 99 Medicare Part D claims totaling $25K in drug costs for 49 beneficiaries.
Where is Corey Christensen, O.D. located? ▼
Corey Christensen, O.D. is located at 2008 S. POST ROAD, Midwest City, OK, 73130. Phone: (405) 732-2277.
What is Corey Christensen, O.D.'s NPI number? ▼
Corey Christensen, O.D.'s National Provider Identifier (NPI) is 1528122140, issued on 12/20/2006.
Does Corey Christensen, O.D. prescribe more brand-name or generic drugs? ▼
Corey Christensen, O.D.'s prescribing is 51% brand-name and 49% generic drugs by claim count, with $23K in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 61,426 Optometrist providers across 56 states in the US. The average Optometrist provider writes 279 Medicare Part D claims per year.
What drugs does Corey Christensen, O.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Corey Christensen, O.D.'s most frequently prescribed drugs include Latanoprost, Loteprednol Etabonate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Corey Christensen, O.D. accept Medicare? ▼
Corey Christensen, O.D. appears in CMS Medicare data with 99 Part D claims and 49 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Corey Christensen, O.D.'s credentials? ▼
Corey Christensen, O.D.'s NPI is 1528122140 with credentials O.D.. 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.