2026 NPPES data Ophthalmology Physician NPI 1669715876 M.D.
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KAREN CHRISTOPHER, M.D.

Ophthalmology Physician in AURORA, Colorado. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Industry payments
$34.73
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KAREN CHRISTOPHER, M.D. is a Ophthalmology Physician in AURORA, Colorado, listed in the federal CMS National Provider Identifier registry.

$34.73
industry payments (Sunshine Act)

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.

Board-eligible specialty (heuristic — not verified)

KAREN CHRISTOPHER, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about KAREN CHRISTOPHER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 04/05/2013

NPI 1669715876

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Specialty distribution in Colorado

How Ophthalmology Physician compares to other specialties among Colorado providers

Colorado providers

Ophthalmology Physician share within Colorado

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within Colorado

Specialty board-certification context

Estimated specialty board-certified rate — Ophthalmology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ophthalmology Physician ABMS/AOA estimate

Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

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).

KAREN CHRISTOPHER, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 1675 AURORA CT, AURORA, CO, 80045, with a listed phone of (720) 848-2020. NPI 1669715876 was issued on 04/05/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHRISTOPHER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Ophthalmology Physician providers operate outside Part D entirely.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

1675 AURORA CT
AURORA, CO 80045

Provider Details

NPI 1669715876
Specialty Ophthalmology Physician
Credentials M.D.
Gender Female
NPI Issued 04/05/2013

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 KAREN CHRISTOPHER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$35

Largest payer

Alcon Vision LLC

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.

Ophthalmology Physician Overview

How KAREN CHRISTOPHER, M.D. fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

Nearby Ophthalmology Physician Providers in Colorado

Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as CHRISTOPHER.

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KAREN CHRISTOPHER, M.D.'s specialty?
KAREN CHRISTOPHER, M.D. specializes in Ophthalmology Physician and practices in AURORA, Colorado. Credentials: M.D..
Where is KAREN CHRISTOPHER, M.D. located?
KAREN CHRISTOPHER, M.D. is located at 1675 AURORA CT, AURORA, CO, 80045. Phone: (720) 848-2020.
What is KAREN CHRISTOPHER, M.D.'s NPI number?
KAREN CHRISTOPHER, M.D.'s National Provider Identifier (NPI) is 1669715876, issued on 04/05/2013.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
Does KAREN CHRISTOPHER, M.D. accept Medicare?
KAREN CHRISTOPHER, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KAREN CHRISTOPHER, M.D.'s credentials?
KAREN CHRISTOPHER, M.D.'s NPI is 1669715876 with credentials M.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

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.
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