2026 NPPES data Ophthalmology Physician NPI 1669900031 MD
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CHRISTIAN MEHREGAN, MD

Ophthalmology Physician in EAST LANSING, Michigan. 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
3K
Medicare Part D claims · 863 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
62%
generic claims · 38% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.9841/100
▲ 15 pts above national avg 83.1 · [object Object]
Industry payments
$112.41
4 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CHRISTIAN MEHREGAN, MD reported a CMS MIPS final score of 97.9841/100 — above the 83.1 national average — and filed 3,447 Medicare Part D claims in 2023.

97.9841/100
MIPS score · +15 vs avg
3K
Part D claims, 2023
62%
generic prescribing
Likely
board-certified (heuristic)

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.

CHRISTIAN MEHREGAN, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

98 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

CHRISTIAN MEHREGAN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 CHRISTIAN MEHREGAN, MD?

High performer (top quartile)

NPI registry status

Active

Issued 05/31/2017

NPI 1669900031

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

3,447 143% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

97.9841/100 14.884100000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Michigan

How Ophthalmology Physician compares to other specialties among Michigan providers

Michigan providers

Ophthalmology Physician share within Michigan

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

Medicare quality performance — MIPS

CHRISTIAN MEHREGAN, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
97.9841/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 97.9841/100 vs national avg 83.1

0%100%National avg83%98%
MIPS final score (Ophthalmology Physician) — 97.9841/100 vs national avg 83.1

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).

CHRISTIAN MEHREGAN, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 2001 COOLIDGE RD, EAST LANSING, MI, 48823, with a listed phone of (517) 337-1668. NPI 1669900031 was issued on 05/31/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MEHREGAN 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 3,447 prescription claims written by this provider, covering 863 Medicare beneficiaries and totaling roughly $383K in drug spend, split 38% brand-name and 62% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.9841/100 for the 2023 performance year (Quality 99.6075), compared with the national average of 83.1.

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

2001 COOLIDGE RD
EAST LANSING, MI 48823

Provider Details

NPI 1669900031
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 05/31/2017

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

97.9841
Final Score
Avg: 83.1
99.6075
Quality
94
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where CHRISTIAN MEHREGAN, MD 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.

LANSING OPHTHALMOLOGY, PC
EAST LANSING, MI

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 CHRISTIAN MEHREGAN, MD. Source: openpaymentsdata.cms.gov.

Total received

$112

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.

License & disciplinary context — Michigan MI-BOM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 — they are NOT specific to CHRISTIAN MEHREGAN, MD. To verify CHRISTIAN MEHREGAN, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

CHRISTIAN MEHREGAN, MD — brand share 38.0%
Specialty average (est.)

38% brand-name claims vs 62% generic, on 3,447 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.

3,447
Total Claims
$383K
Total Drug Cost
863
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,194
Total Day Supply
173,144
Brand vs Generic
38% brand / 62% generic
Brand Drug Cost
$292K
Generic Drug Cost
$91K
Antibiotic Claims
12

Patient Demographics

Average Patient Age
76.1 years
Avg HCC Risk Score
1.24
Gender Split
55% female / 45% male
Age Distribution
<65: 41, 65-74: 347, 75-84: 329, 85+: 146

Top Prescribed Drugs (Medicare Part D)

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

What CHRISTIAN MEHREGAN, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Latanoprost
647
Prednisolone Acetate
536
Moxifloxacin
Moxifloxacin Hcl
514
Timolol Maleate
368
Brimonidine Tartrate
203
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
140
Prolensa
Bromfenac Sodium
128
Ketorolac Tromethamine
122
Dorzolamide Hcl
95
Lumigan
Bimatoprost
85

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

Ophthalmology Physician Overview

How CHRISTIAN MEHREGAN, MD 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

CHRISTIAN MEHREGAN, MD's 3,447 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Michigan

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

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

Frequently Asked Questions

What is CHRISTIAN MEHREGAN, MD's specialty?
CHRISTIAN MEHREGAN, MD specializes in Ophthalmology Physician and practices in EAST LANSING, Michigan. Credentials: MD.
How much does CHRISTIAN MEHREGAN, MD prescribe under Medicare Part D?
In 2023, CHRISTIAN MEHREGAN, MD wrote 3,447 Medicare Part D claims totaling $383K in drug costs for 863 beneficiaries.
What is CHRISTIAN MEHREGAN, MD's Medicare quality score?
CHRISTIAN MEHREGAN, MD has a CMS MIPS Final Score of 97.9841/100 (Quality: 99.6075). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHRISTIAN MEHREGAN, MD located?
CHRISTIAN MEHREGAN, MD is located at 2001 COOLIDGE RD, EAST LANSING, MI, 48823. Phone: (517) 337-1668.
What is CHRISTIAN MEHREGAN, MD's NPI number?
CHRISTIAN MEHREGAN, MD's National Provider Identifier (NPI) is 1669900031, issued on 05/31/2017.
Does CHRISTIAN MEHREGAN, MD prescribe more brand-name or generic drugs?
CHRISTIAN MEHREGAN, MD's prescribing is 38% brand-name and 62% generic drugs by claim count, with $292K in brand drug costs.
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.
What drugs does CHRISTIAN MEHREGAN, MD prescribe most often?
Based on 2023 Medicare Part D data, CHRISTIAN MEHREGAN, MD's most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Moxifloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTIAN MEHREGAN, MD accept Medicare?
CHRISTIAN MEHREGAN, MD appears in CMS Medicare data with 3,447 Part D claims and 863 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTIAN MEHREGAN, MD's credentials?
CHRISTIAN MEHREGAN, MD's NPI is 1669900031 with credentials MD. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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