Doctor profile · Federal record

Dr. Liam Gross, DO

Pulmonary Disease Physician (CMS: Pulmonary Disease) · Critical Care Medicine (Internal Medicine) Physician · Brooklyn, NY

  • NPI 1578862769
  • Accepts Medicare
  • 15 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
506 6Th St
Brooklyn, NY 112153609
(718) 780-5835

Credentials & registration

NPPES · NUCC
NPI registered
March 2011 — 15 yrs on file
Profile last updated
January 27, 2023
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
New York #288137

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1578862769. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
886
Distinct HCPCS
8
Medicare allowed
$139,626
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 243 107 $92
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 207 93 $136
99291 Critical care, first 30-74 minutes 205 83 $252
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 90 89 $202
99292 Critical care, each additional 30 minutes 69 39 $127
99214 Established patient office or other outpatient visit, 30-39 minutes 37 28 $151
99204 New patient office or other outpatient visit, 45-59 minutes 23 23 $198
76604 Ultrasound scan of chest 12 12 $32

In context: peer comparison

Among 39 peers in Brooklyn Pulmonary Disease Physician, average services per provider: 162. This provider delivers 5.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$753
Transactions
29
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
Genzyme Corporation 13 $248.39
Inspire Medical Systems, INC. 1 $161.51
AstraZeneca Pharmaceuticals Lp 5 $104.54
Mylan Specialty L.P. 2 $44.90
Regeneron Healthcare Solutions, INC. 1 $30.97
GlaxoSmithKline, LLC. 1 $30.37
Insmed, INC. 1 $24.40
Amgen INC. 1 $23.80
Boehringer Ingelheim Pharmaceuticals, INC. 1 $23.68
Baxter Healthcare 1 $21.35
Lilly USA, LLC 1 $19.91
Ultragenyx Pharmaceutical INC. 1 $18.97

By nature of payment

Food and Beverage
$753

Frequently asked questions

Auto-generated from federal data
What is Dr. Liam Gross's medical specialty?
Dr. Liam Gross practices Pulmonary Disease Physician in Brooklyn, NY.
Where does Dr. Liam Gross practice?
Dr. Liam Gross practices at 506 6Th St, Brooklyn, NY 112153609. Office phone: 7187805835.
What is Dr. Liam Gross's NPI?
Dr. Liam Gross's National Provider Identifier (NPI) is 1578862769, issued by NPPES.
Does Dr. Liam Gross accept Medicare assignment?
Yes. Dr. Liam Gross accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Liam Gross commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.