Doctor profile · Federal record

Dr. Claudia Fernandez, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Stony Brook, NY

  • NPI 1619045788
  • Accepts Medicare
  • MIPS 85.0 / 100 · 2023
  • 23 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Stony Brook University Hospital/ Emergency Medicine, Hsc Level 4 Rm 080
Stony Brook, NY 117948350
(631) 444-2478
fax (634) 444-3919
Mailing address
Stony Brook University Hospital, Emergency Medicine
Stony Brook, NY 117940001

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
July 28, 2010
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
New York #240455

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1619045788. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
399
Distinct HCPCS
3
Medicare allowed
$78,399
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 332 325 $204
99284 Emergency department visit with moderate level of medical decision making 53 52 $140
99291 Critical care, first 30-74 minutes 14 14 $246

In context: peer comparison

Among 35 peers in Stony Brook Emergency Medicine Physician, average services per provider: 105. This provider delivers 3.8× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Claudia Fernandez's medical specialty?
Dr. Claudia Fernandez practices Emergency Medicine Physician in Stony Brook, NY.
Where does Dr. Claudia Fernandez practice?
Dr. Claudia Fernandez practices at Stony Brook University Hospital/ Emergency Medicine, Stony Brook, NY 117948350. Office phone: 6314442478.
What is Dr. Claudia Fernandez's NPI?
Dr. Claudia Fernandez's National Provider Identifier (NPI) is 1619045788, issued by NPPES.
Does Dr. Claudia Fernandez accept Medicare assignment?
Yes. Dr. Claudia Fernandez accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Claudia Fernandez commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.