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2026 NPPES data Pediatric Ophthalmology and Strabismus Specialist Physician NPI 1598142549 MD
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Kathryn Maier, MD

Pediatric Ophthalmology and Strabismus Specialist Physician in Nashville, Tennessee.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 265 in Pediatric Ophthalmology and Strabismus Specialist Physician, 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
20
Medicare Part D claims · Pediatric Ophthalmology and Strabismus Specialist Physician avg: 228
MIPS score
71/100
▼ 12 pts below national avg 83.5 · Mid-tier
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Kathryn Maier, MD reported a CMS MIPS final score of 71/100 - below the 83.5 national average - and filed 20 Medicare Part D claims in 2024.

71/100
MIPS score · -12 vs avg
20
Part D claims, 2024
Likely
board-certified (heuristic)
≥9th
pct among measured MIPS (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 Kathryn Maier, MD

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1598142549), first enumerated 04/29/2015.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 20 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 71/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • 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 1598142549 · Pediatric Ophthalmology and Strabismus Specialist Physician

NPI-10 · ENUM-MID · TAX-TRACE · MIPS-LOW · RX-TRACE · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1598142549
  • ENUM-MID 2015
  • TAX-TRACE 265
  • MIPS-LOW 71/100
  • RX-TRACE 20
  • BOOK-THIN 3 in Tennessee
  • PHOTO-FINISH Nils Mungan · ±1.2

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Kathryn Maier, MD's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

71 ≥ 9th percentile 9% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Kathryn Maier, MD sits

This provider among pediatric ophthalmology and strabismus specialist physician peers

Across the 51 pediatric ophthalmology and strabismus specialist physician providers who report both Medicare Part D prescribing and a MIPS quality score, Kathryn Maier, MD writes more Part D claims than 20% of them and scores higher on MIPS quality than 6% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 4 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 64 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 34 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 24 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 56Point, Part D claim volume, percentile in specialty: 14 · MIPS quality, percentile: 66Point, Part D claim volume, percentile in specialty: 94 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 44 · MIPS quality, percentile: 84Point, Part D claim volume, percentile in specialty: 56 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 54 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 64Point, Part D claim volume, percentile in specialty: 44 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 66 · MIPS quality, percentile: 84Point, Part D claim volume, percentile in specialty: 86 · MIPS quality, percentile: 46Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 54Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 36Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 74 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 36 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 56Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 56Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 16Point, Part D claim volume, percentile in specialty: 24 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 4Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 14 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 4 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 84 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 56Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 26Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 24Point, Part D claim volume, percentile in specialty: 94 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 76 · MIPS quality, percentile: 34Kathryn Maier, MD, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 6
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one pediatric ophthalmology and strabismus specialist physician peer from a representative sample of 50; the gold marker is Kathryn Maier, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Kathryn Maier, 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 Kathryn Maier, MD?

Below national average

NPI registry status

Active

Issued 04/29/2015

NPI 1598142549

Primary specialty

Pediatric Ophthalmology and Strabismus Specialist Physician

Rare

265 US NPIs in this specialty

Medicare Part D claims

20 91% vs specialty avg

2024 prescription claims

Specialty avg: 228

MIPS final score

71/100 12.5 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in Tennessee

How Pediatric Ophthalmology and Strabismus Specialist Physician compares to other specialties among Tennessee providers

Tennessee providers
Family Nurse Practitioner6.4%Pharmacist5.8%Student in an Organized Heal…4.7%Behavior Technician4.5%Physical Therapist4.2%Registered Nurse3.9%Pediatric Ophthalmology and …0%
Largest specialties in Tennessee (% of in-state providers)

Medicare quality performance, MIPS

Kathryn Maier, MD's 2023 MIPS final score plotted against the Pediatric Ophthalmology and Strabismus Specialist Physician national average

Below national average
MIPS Final Score
71/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%71%
MIPS final score (Pediatric Ophthalmology and Strabismus Specialist Physician) - 71/100 vs national avg 83.5
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

3601 THE VANDERBILT CLINIC
Nashville, TN 37232
(615) 936-2000

Provider Details

NPI 1598142549
Specialty Pediatric Ophthalmology and Strabismus Specialist Physician
Credentials MD
Gender Female
NPI Issued 04/29/2015

CMS Quality Score (MIPS)

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

71.0158
Final Score
Measured-score avg: 83.5
76.217
Quality
13.6135
Cost
97
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Kathryn Maier, 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.

Dell Childrens Medical Group
Round Rock, TX

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

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

20
Total Claims
$181
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
20
Total Day Supply
235
Generic Drug Cost
$95

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.01
More Pediatric Ophthalmology and Strabismus Specialist Physician in TN → All providers in Tennessee → Compare specialties →

Pediatric Ophthalmology and Strabismus Specialist Physician Overview

How Kathryn Maier, MD fits within the Pediatric Ophthalmology and Strabismus Specialist Physician landscape nationally.

265
Pediatric Ophthalmology and Strabismus Specialist Physician Providers in US
42
States with Pediatric Ophthalmology and Strabismus Specialist Physician
228
Avg Claims per Provider

Kathryn Maier, MD's 20 claims are below the specialty average of 228.

Nationwide Pediatric Ophthalmology and Strabismus Specialist Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Maier, both outside Tennessee so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (71 here).

Nils Mungan 69.8 MS Cody Richardson 74.4 MD Mona Fayad 74.6 CA Harshad Patel 74.6 CA

Same NPPES enumeration year (2015)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Christina Scelfo New York, NY Ujwala Saboo San Antonio, TX Bradley Henriksen Provo, UT Jennifer Rossen Chicago, IL

Nearby Pediatric Ophthalmology and Strabismus Specialist Physician Providers in Tennessee

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

One of 3 Pediatric Ophthalmology and Strabismus Specialist Physician providers enrolled in Tennessee, 2 are shown here.

Dr. Natalie Kerr
MD
Memphis, TN
Oluchukwu Onwuka
Nashville, TN

Compare Pediatric Ophthalmology and Strabismus Specialist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Kathryn Maier, MD's specialty? ▼
Kathryn Maier, MD specializes in Pediatric Ophthalmology and Strabismus Specialist Physician and practices in Nashville, Tennessee. Credentials: MD.
How much does Kathryn Maier, MD prescribe under Medicare Part D? ▼
In 2024, Kathryn Maier, MD wrote 20 Medicare Part D claims totaling $181 in drug costs for N/A beneficiaries.
What is Kathryn Maier, MD's Medicare quality score? ▼
Kathryn Maier, MD has a CMS MIPS Final Score of 71/100 (Quality: 76.2, Cost: 13.6). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kathryn Maier, MD located? ▼
Kathryn Maier, MD is located at 3601 THE VANDERBILT CLINIC, Nashville, TN, 37232. Phone: (615) 936-2000.
What is Kathryn Maier, MD's NPI number? ▼
Kathryn Maier, MD's National Provider Identifier (NPI) is 1598142549, issued on 04/29/2015.
How many Pediatric Ophthalmology and Strabismus Specialist Physician providers are there in the US? ▼
There are 265 Pediatric Ophthalmology and Strabismus Specialist Physician providers across 42 states in the US. The average Pediatric Ophthalmology and Strabismus Specialist Physician provider writes 228 Medicare Part D claims per year.
Does Kathryn Maier, MD accept Medicare? ▼
Kathryn Maier, MD appears in CMS Medicare data with 20 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kathryn Maier, MD's credentials? ▼
Kathryn Maier, MD's NPI is 1598142549 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

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.
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 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

Compiled from official public sources by the editorial process.

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.