Doctor profile · Federal record

Dr. Matthew Ornstein, M.D.

Rheumatology Physician (CMS: Rheumatology) · Carmel, NY

  • NPI 1598737066
  • Accepts Medicare
  • 38 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
672 Stoneleigh Ave, Caremount Medical PC
Carmel, NY 105124634
(845) 231-5600
fax (845) 231-5489
Mailing address
110 S Bedford RD, Caremount Medical PC
Mount Kisco, NY 105493446

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
November 18, 2016
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207RR0500X — NUCC code
State license (1)
New York #179957-1
Medicaid
NY #01415127

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598737066. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
6,290
Distinct HCPCS
10
Medicare allowed
$208,944
HCPCS Description Services Patients Avg allowed
J0897 Injection, denosumab, 1 mg 1,380 15 $23
99214 Established patient office or other outpatient visit, 30-39 minutes 719 339 $143
36415 Insertion of needle into vein for collection of blood sample 564 279 $8
85652 Red blood cell sedimentation rate, to detect inflammation, automated 538 272 $3
86140 Measurement c-reactive protein for detection of infection or inflammation 484 257 $5
80053 Blood test, comprehensive group of blood chemicals 453 243 $10
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 437 231 $8
86431 Rheumatoid factor level 184 151 $6
84550 Uric acid level, blood 160 106 $4
86618 Analysis for antibody borrelia burgdorferi (lyme disease bacteria) 156 138 $17

In context: peer comparison

Among 1 peers in this city , average services per provider: 190. This provider delivers 33× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,583
Patients
519
Total drug cost
$1,244,717
Drug Type Claims Patients Total cost
Hydroxychloroquine Sulfate Generic 334 100 $20,892
Prednisone Generic 334 155 $2,766
Methylprednisolone Generic 137 47 $4,162
Methotrexate (Methotrexate Sodium) Brand 122 34 $3,666
Enbrel Sureclick (Etanercept) Brand 121 14 $1,019,949
Allopurinol Generic 91 34 $1,685
Gabapentin Generic 91 33 $1,185
Meloxicam Generic 90 28 $515
Omeprazole Generic 51 22 $717
Pregabalin Generic 46 0 $1,623

Frequently asked questions

Auto-generated from federal data
What is Dr. Matthew Ornstein's medical specialty?
Dr. Matthew Ornstein practices Rheumatology Physician in Carmel, NY.
Where does Dr. Matthew Ornstein practice?
Dr. Matthew Ornstein practices at 672 Stoneleigh Ave, Carmel, NY 105124634. Office phone: 8452315600.
What is Dr. Matthew Ornstein's NPI?
Dr. Matthew Ornstein's National Provider Identifier (NPI) is 1598737066, issued by NPPES.
Does Dr. Matthew Ornstein accept Medicare assignment?
Yes. Dr. Matthew Ornstein accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Matthew Ornstein commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.