Doctor profile · Federal record

Dr. Michael Grossbard, MD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · New York, NY

  • NPI 1740263276
  • Accepts Medicare
  • MIPS 84.5 / 100 · 2023
  • 40 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1000 10Th Ave Fl 11, Suite 11C02
New York, NY 100191147
(212) 523-5419
Mailing address
Po Box 95000-2467
Philadelphia, PA 191952467

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
November 29, 2012
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
New York #216357
Medicaid
NY #02052808

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1740263276. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
715
Distinct HCPCS
8
Medicare allowed
$84,891
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 462 208 $110
99215 Established patient office or other outpatient visit, 40-54 minutes 74 50 $163
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 47 25 $90
99213 Established patient office or other outpatient visit, 20-29 minutes 45 42 $74
99205 New patient office or other outpatient visit, 60-74 minutes 34 34 $207
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 22 11 $135
99238 Hospital discharge day management, 30 minutes or less 18 17 $92
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 13 13 $197

In context: peer comparison

Among 103 peers in this city , average services per provider: 411. This provider delivers 1.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
71
Patients
0
Total drug cost
$4,251
Drug Type Claims Patients Total cost
Prednisone Generic 17 0 $103
Anastrozole Generic 15 0 $482
Acyclovir Generic 13 0 $228
Allopurinol Generic 13 0 $83
Tenofovir Disoproxil Fumarate Generic 13 0 $3,354

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Grossbard's medical specialty?
Dr. Michael Grossbard practices Hematology & Oncology Physician in New York, NY.
Where does Dr. Michael Grossbard practice?
Dr. Michael Grossbard practices at 1000 10Th Ave Fl 11, New York, NY 100191147. Office phone: 2125235419.
What is Dr. Michael Grossbard's NPI?
Dr. Michael Grossbard's National Provider Identifier (NPI) is 1740263276, issued by NPPES.
Does Dr. Michael Grossbard accept Medicare assignment?
Yes. Dr. Michael Grossbard accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Grossbard commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.