2026 NPPES data Cornea and External Diseases Specialist Physician NPI 1093100109 MD
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WYATT MESSENGER, MD

Cornea and External Diseases Specialist Physician in BOISE, Idaho. 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
2K
Medicare Part D claims · 487 beneficiaries · Cornea and External Diseases Specialist Physician avg: 1K
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: WYATT MESSENGER, MD is a Cornea and External Diseases Specialist Physician ([object Object]) practicing in BOISE, Idaho with a Medicare Part D prescribing footprint of 2K claims across 487 beneficiaries — 31% brand-name prescribing .

What stands out: WYATT MESSENGER, MD filed 1,801 Medicare Part D claims in 2023 across BOISE, Idaho. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

WYATT MESSENGER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

WYATT MESSENGER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 04/06/2015

NPI 1093100109

Primary specialty

Cornea and External Diseases Specialist Physician

Rare

294 US NPIs in this specialty

Medicare Part D claims

1,801 46% vs specialty avg

2023 prescription claims

Specialty avg: 1,232

Specialty distribution in Idaho

How Cornea and External Diseases Specialist Physician compares to other specialties among Idaho providers

Idaho providers

Cornea and External Diseases Specialist Physician share within Idaho

1. Cornea and External Diseases Specialist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cornea and External Diseases Specialist Physician share within Idaho

Specialty board-certification context

Estimated specialty board-certified rate — Cornea and External Diseases Specialist Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Cornea and External Diseases Specialist Physician ABMS/AOA estimate

Est. board-certified rate (Cornea and External Diseases Specialist Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Cornea and External Diseases Specialist 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).

WYATT MESSENGER, MD is a Cornea and External Diseases Specialist Physician provider practicing in BOISE, Idaho, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1093100109. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

WYATT MESSENGER, MD appears in the CMS NPPES registry as a Cornea and External Diseases Specialist Physician provider holding MD credentials at 360 E MALLARD DR STE 110, BOISE, ID, 83706, with a listed phone of (206) 336-8700. NPI 1093100109 was issued on 04/06/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MESSENGER 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 1,801 prescription claims written by this provider, covering 487 Medicare beneficiaries and totaling roughly $103K in drug spend, split 31% brand-name and 69% 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.

Cornea and External Diseases Specialist Physician is a narrow specialty nationwide, with 294 enrolled providers across 43 states and an average of 1,232 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

360 E MALLARD DR STE 110
BOISE, ID 83706

Provider Details

NPI 1093100109
Specialty Cornea and External Diseases Specialist Physician
Credentials MD
Gender Male
NPI Issued 04/06/2015

Hospital and facility affiliations

Facilities where WYATT MESSENGER, 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.

HOLLINGSHEAD EYE CENTER PC
BOISE, ID
PERMANENTE MEDICAL GROUP INC
SACRAMENTO, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

WYATT MESSENGER, MD — brand share 31.0%
Specialty average (est.)

31% brand-name claims vs 69% generic, on 1,801 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.

1,801
Total Claims
$103K
Total Drug Cost
487
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,447
Total Day Supply
93,279
Brand vs Generic
31% brand / 69% generic
Brand Drug Cost
$70K
Generic Drug Cost
$33K

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
1.24
Gender Split
60% female / 40% male
Age Distribution
<65: 30, 65-74: 184, 75-84: 203, 85+: 70

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisolone Acetate
366
Latanoprost
270
Moxifloxacin
Moxifloxacin Hcl
253
Brimonidine Tartrate
178
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
145
Timolol Maleate
80
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
73
Dorzolamide Hcl
48
Cyclosporine
36
Fluorometholone
32

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

Cornea and External Diseases Specialist Physician Overview

How WYATT MESSENGER, MD fits within the Cornea and External Diseases Specialist Physician landscape nationally.

294
Cornea and External Diseases Specialist Physician Providers in US
43
States with Cornea and External Diseases Specialist Physician
1,232
Avg Claims per Provider

WYATT MESSENGER, MD's 1,801 claims are above the specialty average of 1,232.

Frequently Asked Questions

What is WYATT MESSENGER, MD's specialty?
WYATT MESSENGER, MD specializes in Cornea and External Diseases Specialist Physician and practices in BOISE, Idaho. Credentials: MD.
How much does WYATT MESSENGER, MD prescribe under Medicare Part D?
In 2023, WYATT MESSENGER, MD wrote 1,801 Medicare Part D claims totaling $103K in drug costs for 487 beneficiaries.
Where is WYATT MESSENGER, MD located?
WYATT MESSENGER, MD is located at 360 E MALLARD DR STE 110, BOISE, ID, 83706. Phone: (206) 336-8700.
What is WYATT MESSENGER, MD's NPI number?
WYATT MESSENGER, MD's National Provider Identifier (NPI) is 1093100109, issued on 04/06/2015.
Does WYATT MESSENGER, MD prescribe more brand-name or generic drugs?
WYATT MESSENGER, MD's prescribing is 31% brand-name and 69% generic drugs by claim count, with $70K in brand drug costs.
How many Cornea and External Diseases Specialist Physician providers are there in the US?
There are 294 Cornea and External Diseases Specialist Physician providers across 43 states in the US. The average Cornea and External Diseases Specialist Physician provider writes 1,232 Medicare Part D claims per year.
What drugs does WYATT MESSENGER, MD prescribe most often?
Based on 2023 Medicare Part D data, WYATT MESSENGER, MD's most frequently prescribed drugs include Prednisolone Acetate, Latanoprost, Moxifloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WYATT MESSENGER, MD accept Medicare?
WYATT MESSENGER, MD appears in CMS Medicare data with 1,801 Part D claims and 487 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WYATT MESSENGER, MD's credentials?
WYATT MESSENGER, MD's NPI is 1093100109 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.
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