Doctor profile · Federal record

Dr. Alyssa Zupon, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Student in an Organized Health Care Education/Training Program · Boston, MA

  • NPI 1184113110
  • Accepts Medicare
  • 8 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
75 Francis St, Brigham and Women's Emergency Department
Boston, MA 02115
(617) 732-5636
Additional location
55 Fruit St, Massachusetts General Hospital Emergency Department
Boston, MA 02224
(617) 724-4100

Credentials & registration

NPPES · NUCC
NPI registered
May 2018 — 8 yrs on file
Profile last updated
June 29, 2022
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Massachusetts #286287

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184113110. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
602
Distinct HCPCS
8
Medicare allowed
$96,969
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 313 308 $181
99284 Emergency department visit with moderate level of medical decision making 93 86 $125
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 50 50 $184
99291 Critical care, first 30-74 minutes 44 44 $224
93308 Ultrasound of heart, follow-up 37 37 $26
99236 Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes 32 32 $216
76604 Ultrasound scan of chest 17 17 $29
99283 Emergency department visit with low level of medical decision making 16 15 $75

In context: peer comparison

Among 183 peers in Boston Emergency Medicine Physician, average services per provider: 65. This provider delivers 9.3× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alyssa Zupon's medical specialty?
Dr. Alyssa Zupon practices Emergency Medicine Physician in Boston, MA.
Where does Dr. Alyssa Zupon practice?
Dr. Alyssa Zupon practices at 75 Francis St, Boston, MA 02115. Office phone: 6177325636.
What is Dr. Alyssa Zupon's NPI?
Dr. Alyssa Zupon's National Provider Identifier (NPI) is 1184113110, issued by NPPES.
Does Dr. Alyssa Zupon accept Medicare assignment?
Yes. Dr. Alyssa Zupon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alyssa Zupon 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); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.