MARLEE DIANA THOMAS DO
NPI 1437736014
Emergency Medicine in Springfield, MA

Q: What is Marlee Thomas's NPI number?

The NPI number for Marlee Thomas is 1437736014. It was assigned to this individual provider in the NPPES registry on March 28, 2021.

Q: What is Marlee Thomas's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Marlee Thomas was last updated on November 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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 March 28, 2021PECOS EnrolledAccepts Medicare Assignment

94.63/100

CMS Quality Rating

759 CHESTNUT ST # S6538, SPRINGFIELD, MA 01107(413) 794-3233(413) 794-9060 Get Directions Write a Review

NPPES record last updated: November 17, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Nov 17, 2025, Jun 15, 2025, Aug 30, 2023 and 1 more (4 updates tracked since 2021).

On this page

About Marlee Diana Thomas Do NPPES

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

MARLEE DIANA THOMAS DO (NPI 1437736014) is an individual emergency medicine provider in Springfield, Massachusetts, licensed in Massachusetts (1022823) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1437736014

Entity TypeIndividualFemale

Primary Taxonomy207P00000X

Provider Legal NameMARLEE DIANA THOMASCredential: DO

Location Address759 CHESTNUT ST # S6538Springfield, MA 01107-1619

Mailing Address280 Chestnut St Fl 2Springfield, MA 01199-1001 · (413) 794-5700 · Fax (413) 794-1629

Phone(413) 794-3233

Fax(413) 794-9060

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateMarch 28, 2021

Last NPPES UpdateNovember 17, 20254 updates tracked since enumeration

NPPES CertifiedNovember 17, 2025

✔ NPI 1437736014 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

Licenses✔ Licensed in MA · 1022823✔ Licensed in OH · 34.016548

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

759 CHESTNUT ST # S6538, Springfield, MA 01107

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

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

Marlee Diana Thomas Do 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 ID345649612

PECOS Enrollment IDI20251209001158

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 2

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

24 services20 patients

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

24 services24 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01107 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

$90.70 typical visit price

range $58.86 – $177.36

Typical copayment $22.67 (range $14.71 – $44.34)

Most-billed visit code 99203

Established Patient

$103.48 typical visit price

range $19.11 – $144.84

Typical copayment $25.87 (range $4.77 – $36.21)

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.

94.63/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

90.64

Improvement Activities

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.

MARISA ROBYN SIEGEL MD

Emergency Medicine