2026 NPPES data Surgery Physician NPI 1386783371 MD
Verify on CMS →

KATHLEEN MAXFIELD, MD

Surgery Physician in DANBURY, Connecticut. 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
56
Medicare Part D claims · 28 beneficiaries · Surgery Physician avg: 169
Generic prescribing
55%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.2464/100
▲ 11 pts above national avg 83.1 · [object Object]
Industry payments
$1.6K
17 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KATHLEEN MAXFIELD, MD reported a CMS MIPS final score of 94.2464/100 — above the 83.1 national average — and filed 56 Medicare Part D claims in 2023.

94.2464/100
MIPS score · +11 vs avg
56
Part D claims, 2023
55%
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.

KATHLEEN MAXFIELD, MD's MIPS score vs every scored U.S. clinician

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

94 Top 25% higher than 75% 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)

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

High performer (top quartile)

NPI registry status

Active

Issued 02/06/2007

NPI 1386783371

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

56 67% vs specialty avg

2023 prescription claims

Specialty avg: 169

MIPS final score

94.2464/100 11.1464% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Connecticut

How Surgery Physician compares to other specialties among Connecticut providers

Connecticut providers

Surgery Physician share within Connecticut

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

Medicare quality performance — MIPS

KATHLEEN MAXFIELD, MD's 2023 MIPS final score plotted against the Surgery Physician national average

High performer (top quartile)
MIPS Final Score
94.2464/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Surgery Physician) — 94.2464/100 vs national avg 83.1

0%100%National avg83%94.2%
MIPS final score (Surgery Physician) — 94.2464/100 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).

KATHLEEN MAXFIELD, MD is a Surgery Physician provider practicing in DANBURY, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1386783371. 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.

KATHLEEN MAXFIELD, MD appears in the CMS NPPES registry as a Surgery Physician provider holding MD credentials at 41 GERMANTOWN RD, DANBURY, CT, 06810, with a listed phone of (203) 399-0399. NPI 1386783371 was issued on 02/06/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAXFIELD 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 56 prescription claims written by this provider, covering 28 Medicare beneficiaries and totaling roughly $15K in drug spend, split 45% brand-name and 55% 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 94.2464/100 for the 2023 performance year (Quality 78.2615), compared with the national average of 83.1.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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

41 GERMANTOWN RD
DANBURY, CT 06810

Provider Details

NPI 1386783371
Specialty Surgery Physician
Credentials MD
Gender Female
NPI Issued 02/06/2007

CMS Quality Score (MIPS)

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

94.2464
Final Score
Avg: 83.1
78.2615
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

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 KATHLEEN MAXFIELD, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.6K

Largest payer

Globus Medical, 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.

Brand vs generic prescribing mix · Above average

KATHLEEN MAXFIELD, MD — brand share 45.0%
Specialty average (est.)

45% brand-name claims vs 55% generic, on 56 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.

56
Total Claims
$15K
Total Drug Cost
28
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
71
Total Day Supply
1,947
Brand vs Generic
45% brand / 55% generic
Brand Drug Cost
$14K
Generic Drug Cost
$696

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.85
Gender Split
46% female / 54% 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
Xarelto
Rivaroxaban
18

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

Surgery Physician Overview

How KATHLEEN MAXFIELD, MD fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

KATHLEEN MAXFIELD, MD's 56 claims are below the specialty average of 169.

Nearby Surgery Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is KATHLEEN MAXFIELD, MD's specialty?
KATHLEEN MAXFIELD, MD specializes in Surgery Physician and practices in DANBURY, Connecticut. Credentials: MD.
How much does KATHLEEN MAXFIELD, MD prescribe under Medicare Part D?
In 2023, KATHLEEN MAXFIELD, MD wrote 56 Medicare Part D claims totaling $15K in drug costs for 28 beneficiaries.
What is KATHLEEN MAXFIELD, MD's Medicare quality score?
KATHLEEN MAXFIELD, MD has a CMS MIPS Final Score of 94.2464/100 (Quality: 78.2615). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is KATHLEEN MAXFIELD, MD located?
KATHLEEN MAXFIELD, MD is located at 41 GERMANTOWN RD, DANBURY, CT, 06810. Phone: (203) 399-0399.
What is KATHLEEN MAXFIELD, MD's NPI number?
KATHLEEN MAXFIELD, MD's National Provider Identifier (NPI) is 1386783371, issued on 02/06/2007.
Does KATHLEEN MAXFIELD, MD prescribe more brand-name or generic drugs?
KATHLEEN MAXFIELD, MD's prescribing is 45% brand-name and 55% generic drugs by claim count, with $14K in brand drug costs.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does KATHLEEN MAXFIELD, MD prescribe most often?
Based on 2023 Medicare Part D data, KATHLEEN MAXFIELD, MD's most frequently prescribed drugs include Xarelto. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHLEEN MAXFIELD, MD accept Medicare?
KATHLEEN MAXFIELD, MD appears in CMS Medicare data with 56 Part D claims and 28 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHLEEN MAXFIELD, MD's credentials?
KATHLEEN MAXFIELD, MD's NPI is 1386783371 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