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DR. ALYSSA MIERJESKI M.D.
NPI 1326496118
Emergency Medicine in Providence, RI

Active since June 02, 2016PECOS Enrolled
75/100
CMS Quality Rating
593 EDDY ST, PROVIDENCE, RI 02903(401) 444-4247(401) 444-6662 Get Directions Write a Review

NPPES record last updated: June 2, 2016. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Alyssa Mierjeski M.d. NPPES

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

DR. ALYSSA MIERJESKI M.D. (NPI 1326496118) is an individual emergency medicine provider in Providence, Rhode Island, licensed in Rhode Island (LP03733) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1326496118
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. ALYSSA MIERJESKICredential: M.D.
Location Address593 EDDY STProvidence, RI 02903-4923
Mailing Address593 Eddy StProvidence, RI 02903-4923 · (401) 444-4247 · Fax (401) 444-6662
Phone(401) 444-4247
Fax(401) 444-6662
Sole ProprietorYes
Enumeration DateJune 2, 2016
✔ NPI 1326496118 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in RI · LP03733
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.
593 EDDY ST, Providence, RI 02903
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alyssa Mierjeski M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 3

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.

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.
228 services223 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
198 services196 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
88 services87 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02903 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
$90.48 typical visit price
range $58.57 – $177.03
Typical copayment $22.62 (range $14.64 – $44.25)
Most-billed visit code 99203
Established Patient
$103.10 typical visit price
range $18.92 – $144.38
Typical copayment $25.77 (range $4.73 – $36.09)
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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

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.

DR. KEITH-AUSTIN SCARFO D.O.
Anesthesiology
593 EDDY ST, APC 6
PROVIDENCE, RI 02903
Providence County (401) 444-3777
AILEEN HSUEH
Surgery
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 444-8450
RHODE ISLAND HOSPITAL
General Acute Care Hospital
593 EDDY ST, MAIN 4
PROVIDENCE, RI 02903
Providence County (401) 444-7585
DR. GA HIE NAM M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 444-5057
EUGENIE ATALLAH
Psychiatry & Neurology (Neurology)
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 606-2645
BRIAN CAO MD
Student in an Organized Health Care Education/Training Program
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 606-4286
BRET CAULFIELD
Physician Assistant
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 444-4000
JUNG HO GONG
Student in an Organized Health Care Education/Training Program
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 793-2695

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 Alyssa Mierjeski's NPI number?

The NPI number for Alyssa Mierjeski is 1326496118. It was assigned to this individual provider in the NPPES registry on June 2, 2016.

Where is Alyssa Mierjeski located?

Alyssa Mierjeski practices at 593 Eddy St, Providence, RI 02903. The listed phone number is (401) 444-4247.

What is Alyssa Mierjeski's specialty?

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

Is Alyssa Mierjeski enrolled in Medicare?

Yes. Alyssa Mierjeski is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Alyssa Mierjeski was last updated on June 2, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.