DR. ALEXANDER ROMAN NELSON MD
NPI 1326543372
Emergency Medicine in New Haven, CT

Active since March 29, 2018PECOS EnrolledAccepts Medicare Assignment
73.56/100
CMS Quality Rating
20 YORK ST, NEW HAVEN, CT 06510(203) 668-2222(203) 688-3027 Get Directions Write a Review

NPPES record last updated: April 28, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 28, 2022, Mar 29, 2018 (2 updates tracked since 2018).

About Dr. Alexander Roman Nelson Md NPPES

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

DR. ALEXANDER ROMAN NELSON MD (NPI 1326543372) is an individual emergency medicine provider in New Haven, Connecticut, licensed in Connecticut (7042) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and is a graduate of Florida International Univ, College Of Medicine (2018).

NPPES Registry Identity

NPI1326543372
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. ALEXANDER ROMAN NELSONCredential: MD
Location Address20 YORK STNew Haven, CT 06510-3220
Mailing Address464 Congress Ave Ste 260, P.o. Box 20853New Haven, CT 06519-1362 · (203) 737-2644
Fax(203) 688-3027
Sole ProprietorYes
Medical School CMSFlorida International Univ, College Of MedicineGraduated 2018
Enumeration DateMarch 29, 2018
Last NPPES UpdateApril 28, 20222 updates tracked since enumeration
NPPES CertifiedApril 28, 2022
NPI 1326543372 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License Licensed in CT · 7042
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.

20 YORK ST, New Haven, CT 06510

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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

Dr. Alexander Roman Nelson 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 ID8820345333
PECOS Enrollment IDI20220916002515
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 4

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.
163 services162 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.
42 services42 patients
Ultrasound of heart, follow-up 93308
A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.
21 services21 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.
21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06510 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
$93.86 typical visit price
range $60.82 – $183.10
Typical copayment $23.46 (range $15.20 – $45.77)
Most-billed visit code 99203
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.

73.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.84
Promoting Interoperability74
Improvement Activities40
Cost51.43

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.

Radiology (Diagnostic Radiology)
20 YORK ST, YALE NEW HAVEN HOSPITAL
NEW HAVEN, CT 06510
Emergency Medicine
20 YORK ST, YNHH SOUTH PAVILION 218
NEW HAVEN, CT 06510
Physician Assistant
20 YORK ST, YALE NEW HAVEN HOSPITAL SOUTH PAVILION 218
NEW HAVEN, CT 06510
Medical Genetics (Clinical Genetics (M.D.))
20 YORK ST, YALE CHILDREN'S HOSPITAL, WEST PAVILION, 2ND FLOOR
NEW HAVEN, CT 06510
Medical Genetics (Clinical Genetics (M.D.))
20 YORK ST, CHILDREN'S HOSPITAL AT YALE, WEST PAVILION, 2ND FLOOR
NEW HAVEN, CT 06510
Psychiatry & Neurology (Psychiatry)
20 YORK ST
NEW HAVEN, CT 06510
Radiology (Diagnostic Radiology)
20 YORK ST, YALE NEW HAVEN HOSPITAL-SOUTH PAVILLION-2ND FL
NEW HAVEN, CT 06510
Physician Assistant
20 YORK ST, YALE NEW HAVEN HOSPTIAL EMERGENCY DEPARTMENT
NEW HAVEN, CT 06510

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 Alexander Nelson's NPI number?

The NPI number for Alexander Nelson is 1326543372. It was assigned to this individual provider in the NPPES registry on March 29, 2018.

Where is Alexander Nelson located?

Alexander Nelson practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 668-2222.

What is Alexander Nelson's specialty?

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

Is Alexander Nelson enrolled in Medicare?

Yes. Alexander Nelson 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.

When was this NPI record last updated?

The NPPES record for Alexander Nelson was last updated on April 28, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.