Doctor profile · Federal record

Dr. Kathleen Maxfield, MD

Vascular Surgery Physician (CMS: Vascular Surgery) · Surgery Physician · Vascular Surgery Physician · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Danbury, CT

  • NPI 1386783371
  • Accepts Medicare
  • MIPS 89.1 / 100 · 2023
  • 20 yrs in practice
  • Licensed in 4 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
41 Germantown RD
Danbury, CT 068104087
(203) 399-0399
Additional location
333 Borthwick Ave Ste 402
Portsmouth, NH 038017128
(603) 559-4111
fax (603) 559-4110
Additional location
6 Healthcare Dr, Suite #1
Rochester, NH 038674499
(603) 994-6400

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
October 10, 2022
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
2086S0129X — NUCC code
State licenses (4)
Connecticut #72618 · New Mexico #2006-0340 · New Hampshire #NH17929 · Montana #34011

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386783371. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,091
Distinct HCPCS
10
Medicare allowed
$58,361
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 172 114 $95
93970 Ultrasound study of arm or leg veins with compression and maneuvers 149 142 $34
93971 Ultrasound study of one arm or leg veins with compression and maneuvers 117 98 $22
93880 Ultrasound of both sides of head and neck blood flow 114 114 $40
93971 Ultrasound study of one arm or leg veins with compression and maneuvers 102 98 $22
99203 New patient office or other outpatient visit, 30-44 minutes 81 81 $118
93970 Ultrasound study of arm or leg veins with compression and maneuvers 62 60 $34
93880 Ultrasound of both sides of head and neck blood flow 53 53 $40
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts 47 44 $39
93926 Ultrasound of one leg arteries or artery grafts 34 30 $23

In context: peer comparison

Among 4 peers in this city , average services per provider: 57. This provider delivers 19× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,553
Transactions
17
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Globus Medical, Inc. 2 $831.26
Silk Road Medical, Inc. 2 $210.36
Bard Peripheral Vascular, Inc. 4 $162.35
Endologix LLC 2 $97.39
W. L. Gore & Associates, Inc. 1 $71.89
Inari Medical, Inc. 2 $67.31
ShockWave Medical, Inc 1 $55.84
Kerecis Limited 1 $28.93
LeMaitre Vascular, Inc. 1 $14.26
Medtronic, Inc. 1 $13.61

By nature of payment

Travel and Lodging
$831
Food and Beverage
$722

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
18
Patients
0
Total drug cost
$10,559
Drug Type Claims Patients Total cost
Xarelto (Rivaroxaban) Brand 18 0 $10,559

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Kathleen Maxfield's medical specialty?
Dr. Kathleen Maxfield practices Vascular Surgery Physician in Danbury, CT.
Where does Dr. Kathleen Maxfield practice?
Dr. Kathleen Maxfield practices at 41 Germantown RD, Danbury, CT 068104087. Office phone: 2033990399.
What is Dr. Kathleen Maxfield's NPI?
Dr. Kathleen Maxfield's National Provider Identifier (NPI) is 1386783371, issued by NPPES.
Does Dr. Kathleen Maxfield accept Medicare assignment?
Yes. Dr. Kathleen Maxfield accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kathleen Maxfield commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Ultrasound study of arm or leg veins with compression and maneuvers (HCPCS 93970); Ultrasound study of one arm or leg veins with compression and maneuvers (HCPCS 93971). Source: CMS Medicare Physician & Other Practitioners file.