NICHOLAS P MAXWELL MD
NPI 1437223807
Surgery in Monroe, WI

Q: What is Nicholas Maxwell's NPI number?

The NPI number for Nicholas Maxwell is 1437223807. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Q: What is Nicholas Maxwell's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Nicholas Maxwell was last updated on December 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 20, 2006PECOS EnrolledAccepts Medicare Assignment

515 22ND AVE, MONROE, WI 53566(608) 324-2000 Get Directions Write a Review

NPPES record last updated: December 29, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Nicholas P Maxwell Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NICHOLAS P MAXWELL MD (NPI 1437223807) is an individual surgery provider in Monroe, Wisconsin, licensed in Wisconsin (30316) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with The Monroe Clinic, and is a graduate of Other (1984).

NPPES Registry Identity

NPI1437223807

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameNICHOLAS P MAXWELLCredential: MD

Location Address515 22ND AVEMonroe, WI 53566-1569

Mailing Address515 22nd AveMonroe, WI 53566-1569 · (608) 324-2000

Phone(608) 324-2000

Sole ProprietorNo

Medical School CMSOtherGraduated 1984

Enumeration DateNovember 20, 2006

Last NPPES UpdateDecember 29, 2020

NPPES CertifiedDecember 29, 2020

✔ NPI 1437223807 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in WI · 30316

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

515 22ND AVE, Monroe, WI 53566

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Other Identifiers 11

Other20022801Medicare Railroad

Medicaid31508500WI

Other390808509Cigna

Other690004890Medicare Railroad

Other39080850968Unity

Other1006060Physicians Plus

Other390808509Wps

Other31508500Hirsp

Other10884Dean Health Plan

Other390808509Ct General

Other90002361Wea Ins

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nicholas P Maxwell Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8224065321

PECOS Enrollment IDI20050720000683

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Nicholas Maxwell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Monroe Clinic, Inc.

Same address

Specialist

515 22ND AVE
Monroe, WI 53566

Reassigned Medicare billing, Wisconsin enrollment
376 clinicians in this Medicare group

NPI 1386720548 (608) 324-2770

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

102 services76 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

64 services57 patients

Destruction of polyp or growth of large bowel using a flexible endoscope 45388

This procedure involves the removal of a polyp or growth in the large bowel. A flexible endoscope, a thin tube with a camera, is inserted through the rectum to visualize and remove the growth. This helps maintain bowel health and prevent complications.

54 services53 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

50 services50 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

40 services21 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

21 services21 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

19 services19 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

18 services18 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

18 services18 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

16 services16 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

13 services13 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

The Monroe Clinic

Acute Care Hospitals · Monroe, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520028

Location515 22nd AveMonroe, WI 53566 · Green County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53566 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$82.92 typical visit price

range $53.90 – $163.24

Typical copayment $20.73 (range $13.47 – $40.81)

Most-billed visit code 99203

Established Patient

$67.37 typical visit price

range $17.40 – $133.76

Typical copayment $16.84 (range $4.35 – $33.44)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NICOLE LYN CARRICO PHARM.D.

Pharmacist (Pharmacotherapy)

515 22ND AVE
MONROE, WI 53566

Green County (608) 324-1242

SUZANNE MARIE CURTISS FNP-BC

Nurse Practitioner (Family)

515 22ND AVE
MONROE, WI 53566

Green County (608) 324-2600

DR. MATTHEW M MICHALSKI MD

Emergency Medicine

515 22ND AVE
MONROE, WI 53566

Green County (608) 324-2000

ANNA METZ PHARM.D.

Pharmacist

515 22ND AVE
MONROE, WI 53566

Green County (608) 324-1242

MICHAEL ROESCH

Family Medicine

515 22ND AVE
MONROE, WI 53566

Green County (608) 324-2000

LINDSEY HOULE DNP, PMHNP-BC

Nurse Practitioner

515 22ND AVE
MONROE, WI 53566

Green County (608) 324-2000

MOHAMMAD SALEEM

Internal Medicine (Cardiovascular Disease)

515 22ND AVE
MONROE, WI 53566

Green County (608) 324-2000

NATALIE L. SEIBERT P.A.

Physician Assistant

515 22ND AVE, MONROE CLINIC
MONROE, WI 53566

Green County (608) 324-2222

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nicholas Maxwell's NPI number?

The NPI number for Nicholas Maxwell is 1437223807. It was assigned to this individual provider in the NPPES registry on November 20, 2006.

Where is Nicholas Maxwell located?

Nicholas Maxwell practices at 515 22nd Ave, Monroe, WI 53566. The listed phone number is (608) 324-2000.

What is Nicholas Maxwell's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Nicholas Maxwell enrolled in Medicare?

Yes. Nicholas Maxwell is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Nicholas Maxwell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Maxwell reassigns Medicare benefits to The Monroe Clinic, Inc. (Monroe, WI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nicholas Maxwell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nicholas Maxwell affiliated with any hospitals?

According to CMS data, Nicholas Maxwell is affiliated with The Monroe Clinic.

When was this NPI record last updated?

The NPPES record for Nicholas Maxwell was last updated on December 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.