MARIE LOUIES LAMSEN M.D.
NPI 1982975710
Internal Medicine in Danbury, CT

Active since January 25, 2012PECOS EnrolledAccepts Medicare Assignment
94.24/100
CMS Quality Rating
24 HOSPITAL AVE, DANBURY, CT 06810(203) 739-6959 Get Directions Write a Review

NPPES record last updated: January 31, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Marie Louies Lamsen M.d. NPPES

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

MARIE LOUIES LAMSEN M.D. (NPI 1982975710) is an individual internal medicine provider in Danbury, Connecticut, licensed in Connecticut (70095) and active in the NPI registry since January 2012. She is enrolled in Medicare PECOS, is affiliated with Northern Westchester Hospital, and maintains a secondary practice location in New Rochelle.

NPPES Registry Identity

NPI1982975710
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARIE LOUIES LAMSENCredential: M.D.
Location Address24 HOSPITAL AVEDanbury, CT 06810-6077
Mailing Address24 Hospital AveDanbury, CT 06810-6077 · (203) 739-6959
Sole ProprietorYes
Medical School CMSSaint Louis University School Of MedicineGraduated 2009
Enumeration DateJanuary 25, 2012
Last NPPES UpdateJanuary 31, 2022
NPPES CertifiedJanuary 31, 2022
NPI 1982975710 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in CT · 70095 Licensed in NY · 274350
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
24 HOSPITAL AVE, Danbury, CT 06810

Secondary Practice Location 1

Location 116 Guion PlNew Rochelle, NY 10801-5502 · Phone (914) 365-3680

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Marie Louies Lamsen M.d. 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 ID4880907955
PECOS Enrollment IDI20150717001971, I20220310000414
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.

Areas of Expertise CMS Part B claims 7

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
515 services278 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
276 services189 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
190 services184 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
94 services92 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
71 services67 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
49 services34 patients

Hospital Affiliations CMS Care Compare 2

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

Northern Westchester Hospital

Acute Care Hospitals · Mount Kisco, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330162
Location400 East Main StreetMount Kisco, NY 10549 · Westchester County
Emergency services Birthing friendly

White Plains Hospital Center

Acute Care Hospitals · White Plains, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330304
Location41 East Post R0adWhite Plains, NY 10601 · Westchester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06810 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.24/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality78.26
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
1 supplier11 claims11 services$923.20 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers21 claims21 services$66.30 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
2 suppliers18 claims18 services$34.89 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Emergency Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Nurse Anesthetist, Certified Registered
24 HOSPITAL AVE
DANBURY, CT 06810
Student in an Organized Health Care Education/Training Program
24 HOSPITAL AVE
DANBURY, CT 06810
Physician Assistant (Surgical)
24 HOSPITAL AVE
DANBURY, CT 06810
Nurse Practitioner (Acute Care)
24 HOSPITAL AVE
DANBURY, CT 06810
Anesthesiology
24 HOSPITAL AVE
DANBURY, CT 06810
Internal Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Emergency Medicine
24 HOSPITAL AVE
DANBURY, CT 06810

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 Marie Louies Lamsen's NPI number?

The NPI number for Marie Louies Lamsen is 1982975710. It was assigned to this individual provider in the NPPES registry on January 25, 2012.

Where is Marie Louies Lamsen located?

Marie Louies Lamsen practices at 24 Hospital Ave, Danbury, CT 06810. The listed phone number is (203) 739-6959.

What is Marie Louies Lamsen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Marie Louies Lamsen enrolled in Medicare?

Yes. Marie Louies Lamsen 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.

Is Marie Louies Lamsen affiliated with any hospitals?

According to CMS data, Marie Louies Lamsen is affiliated with Northern Westchester Hospital and White Plains Hospital Center.

When was this NPI record last updated?

The NPPES record for Marie Louies Lamsen was last updated on January 31, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.