Doctor profile · Federal record

Dr. Alyssa Stassi, D.O.

Surgical Critical Care Physician (CMS: General Surgery) · Surgery Physician · Surgery Physician · Student in an Organized Health Care Education/Training Program · Phoenix, AZ

  • NPI 1831464858
  • Accepts Medicare
  • 14 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
16601 N 40Th St Ste 204
Phoenix, AZ 850323356
(602) 633-3721
fax (602) 595-1127

Credentials & registration

NPPES · NUCC
NPI registered
March 2012 — 14 yrs on file
Profile last updated
October 21, 2021
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
2086S0102X — NUCC code
State licenses (2)
Arizona #007597 · Ohio #34.011950
Medicaid
AZ #406897

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831464858. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
561
Distinct HCPCS
9
Medicare allowed
$60,198
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 187 130 $77
99291 Critical care, first 30-74 minutes 104 83 $207
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 87 59 $115
76705 Limited ultrasound scan of abdomen 47 47 $28
93308 Ultrasound of heart, follow-up 37 37 $24
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 34 34 $126
99239 Hospital discharge day management, more than 30 minutes 31 31 $111
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 23 23 $168
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 11 11 $48

In context: peer comparison

Among 10 peers in this city , average services per provider: 62. This provider delivers 9.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$687
Transactions
17
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Kerecis Limited 2 $248.11
Avita Medical Americas, Llc 3 $106.93
Solventum Corporation 3 $82.40
BioWound Solutions, Inc. 2 $60.44
Musculoskeletal Transplant Foundation Inc. 2 $46.39
Axonics, Inc. 1 $44.83
MIMEDX Group, Inc. 1 $28.86
Urgo Medical North America, LLC 1 $27.32
COLOPLAST CORP 1 $26.42
Integra LifeSciences Corporation 1 $15.16

By nature of payment

Food and Beverage
$687

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alyssa Stassi's medical specialty?
Dr. Alyssa Stassi practices Surgical Critical Care Physician in Phoenix, AZ.
Where does Dr. Alyssa Stassi practice?
Dr. Alyssa Stassi practices at 16601 N 40Th St Ste 204, Phoenix, AZ 850323356. Office phone: 6026333721.
What is Dr. Alyssa Stassi's NPI?
Dr. Alyssa Stassi's National Provider Identifier (NPI) is 1831464858, issued by NPPES.
Does Dr. Alyssa Stassi accept Medicare assignment?
Yes. Dr. Alyssa Stassi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alyssa Stassi commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.