Doctor profile · Federal record

Dr. Isabel Casimiro, M.D., PH.D.

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Endocrinology, Diabetes & Metabolism Physician · Honolulu, HI

  • NPI 1942615596
  • Accepts Medicare
  • 12 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
550 S Beretania St Ste 202
Honolulu, HI 968132496
(808) 691-8526
Additional location
5841 S Maryland Ave # Mc1027
Chicago, IL 606371443
(773) 702-6840
fax (773) 702-2230

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
July 25, 2022
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State licenses (3)
Hawaii #MD-22557 · Illinois #125064887 · Illinois #036.142507

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942615596. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
398
Distinct HCPCS
4
Medicare allowed
$53,340
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 314 133 $127
99204 New patient office or other outpatient visit, 45-59 minutes 47 47 $168
99213 Established patient office or other outpatient visit, 20-29 minutes 22 19 $89
99205 New patient office or other outpatient visit, 60-74 minutes 15 15 $231

In context: peer comparison

Among 8 peers in this city , average services per provider: 127. This provider delivers 3.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$440
Transactions
6
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Amgen Inc. 2 $151.24
Kyowa Kirin, Inc. 2 $150.48
Corcept Therapeutics 1 $113.09
Alexion Pharmaceuticals, Inc. 1 $24.74

By nature of payment

Food and Beverage
$440

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,188
Patients
403
Total drug cost
$977,021
Drug Type Claims Patients Total cost
Ozempic (Semaglutide) Brand 182 51 $338,037
Levothyroxine Sodium Generic 161 59 $3,268
Atorvastatin Calcium Generic 120 44 $4,503
Trulicity (Dulaglutide) Brand 100 22 $162,850
Jardiance (Empagliflozin) Brand 85 30 $138,968
Novolog Flexpen (Insulin Aspart) Brand 73 27 $77,126
Metformin Hcl Generic 70 29 $857
Farxiga (Dapagliflozin Propanediol) Brand 60 19 $76,010
Hydrocortisone Generic 59 11 $2,089
Metformin Hcl Er (Metformin Hcl) Brand 59 22 $577

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Isabel Casimiro's medical specialty?
Dr. Isabel Casimiro practices Endocrinology, Diabetes & Metabolism Physician in Honolulu, HI.
Where does Dr. Isabel Casimiro practice?
Dr. Isabel Casimiro practices at 550 S Beretania St Ste 202, Honolulu, HI 968132496. Office phone: 8086918526.
What is Dr. Isabel Casimiro's NPI?
Dr. Isabel Casimiro's National Provider Identifier (NPI) is 1942615596, issued by NPPES.
Does Dr. Isabel Casimiro accept Medicare assignment?
Yes. Dr. Isabel Casimiro accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Isabel Casimiro commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.