2026 NPPES data Corneal and Contact Management Optometrist NPI 1912945338 O.D.
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CHRISTINA PETROU, O.D.

Corneal and Contact Management Optometrist in GLENDALE, Wisconsin. 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.
Prescribing volume
130
Medicare Part D claims · 37 beneficiaries · Corneal and Contact Management Optometrist avg: 235
Generic prescribing
48%
generic claims · 52% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHRISTINA PETROU, O.D. filed 130 Medicare Part D claims in 2023 as a Corneal and Contact Management Optometrist in GLENDALE, Wisconsin, prescribing 48% generic.

130
Part D claims, 2023
48%
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.

CHRISTINA PETROU, O.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

130 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 CHRISTINA PETROU, O.D.?

Quality data not reported

NPI registry status

Active

Issued 06/04/2006

NPI 1912945338

Primary specialty

Corneal and Contact Management Optometrist

Niche

1,549 US NPIs in this specialty

Medicare Part D claims

130 45% vs specialty avg

2023 prescription claims

Specialty avg: 235

Specialty distribution in Wisconsin

How Corneal and Contact Management Optometrist compares to other specialties among Wisconsin providers

Wisconsin providers

Corneal and Contact Management Optometrist share within Wisconsin

1. Corneal and Contact Management Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Corneal and Contact Management Optometrist share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Corneal and Contact Management Optometrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Corneal and Contact Management Optometrist ABMS/AOA estimate

Est. board-certified rate (Corneal and Contact Management Optometrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Corneal and Contact Management Optometrist) — 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).

CHRISTINA PETROU, O.D. appears in the CMS NPPES registry as a Corneal and Contact Management Optometrist provider holding O.D. credentials at 7040 N PORT WASHINGTON RD, GLENDALE, WI, 53217, with a listed phone of (414) 247-2020. NPI 1912945338 was issued on 06/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PETROU 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 records for calendar year 2023 show 130 prescription claims written by this provider, covering 37 Medicare beneficiaries and totaling roughly $29K in drug spend, split 52% brand-name and 48% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Corneal and Contact Management Optometrist is a narrow specialty nationwide, with 1,549 enrolled providers across 52 states and an average of 235 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

7040 N PORT WASHINGTON RD
GLENDALE, WI 53217

Provider Details

NPI 1912945338
Specialty Corneal and Contact Management Optometrist
Credentials O.D.
Gender Female
NPI Issued 06/04/2006

Brand vs generic prescribing mix · Brand-heavy

CHRISTINA PETROU, O.D. — brand share 52.0%
Specialty average (est.)

52% brand-name claims vs 48% generic, on 130 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.

130
Total Claims
$29K
Total Drug Cost
37
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
274
Total Day Supply
7,952
Brand vs Generic
52% brand / 48% generic
Brand Drug Cost
$26K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
75.3 years
Avg HCC Risk Score
1.03
Gender Split
57% female / 43% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Latanoprost
86

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Corneal and Contact Management Optometrist Overview

How CHRISTINA PETROU, O.D. fits within the Corneal and Contact Management Optometrist landscape nationally.

1,549
Corneal and Contact Management Optometrist Providers in US
52
States with Corneal and Contact Management Optometrist
235
Avg Claims per Provider

CHRISTINA PETROU, O.D.'s 130 claims are below the specialty average of 235.

Nearby Corneal and Contact Management Optometrist Providers in Wisconsin

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

Compare Corneal and Contact Management Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHRISTINA PETROU, O.D.'s specialty?
CHRISTINA PETROU, O.D. specializes in Corneal and Contact Management Optometrist and practices in GLENDALE, Wisconsin. Credentials: O.D..
How much does CHRISTINA PETROU, O.D. prescribe under Medicare Part D?
In 2023, CHRISTINA PETROU, O.D. wrote 130 Medicare Part D claims totaling $29K in drug costs for 37 beneficiaries.
Where is CHRISTINA PETROU, O.D. located?
CHRISTINA PETROU, O.D. is located at 7040 N PORT WASHINGTON RD, GLENDALE, WI, 53217. Phone: (414) 247-2020.
What is CHRISTINA PETROU, O.D.'s NPI number?
CHRISTINA PETROU, O.D.'s National Provider Identifier (NPI) is 1912945338, issued on 06/04/2006.
Does CHRISTINA PETROU, O.D. prescribe more brand-name or generic drugs?
CHRISTINA PETROU, O.D.'s prescribing is 52% brand-name and 48% generic drugs by claim count, with $26K in brand drug costs.
How many Corneal and Contact Management Optometrist providers are there in the US?
There are 1,549 Corneal and Contact Management Optometrist providers across 52 states in the US. The average Corneal and Contact Management Optometrist provider writes 235 Medicare Part D claims per year.
What drugs does CHRISTINA PETROU, O.D. prescribe most often?
Based on 2023 Medicare Part D data, CHRISTINA PETROU, O.D.'s most frequently prescribed drugs include Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTINA PETROU, O.D. accept Medicare?
CHRISTINA PETROU, O.D. appears in CMS Medicare data with 130 Part D claims and 37 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTINA PETROU, O.D.'s credentials?
CHRISTINA PETROU, O.D.'s NPI is 1912945338 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

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