Doctor profile · Federal record
Dr. Makoto Iwahara, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · New York, NY
- NPI 1366627143
- 46 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
120 E 79Th St, Suite 1C
New York, NY 100750319
(212) 879-2328
fax (212) 879-1933
Credentials & registration
- NPI registered
- December 2007 — 19 yrs on file
- Profile last updated
- April 18, 2008
- Year of graduation
- 1980 — 46 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- New York #147656
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366627143. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
359
Distinct HCPCS
10
Medicare allowed
$43,244
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 117 | 78 | $98 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 56 | 42 | $138 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 44 | 44 | $123 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 31 | 30 | $136 | |
90686 |
Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage | 24 | 23 | $22 | |
G0008 |
Administration of influenza virus vaccine | 24 | 23 | $35 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 22 | 22 | $273 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 16 | 16 | $180 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 13 | 13 | $139 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 12 | 12 | $199 |
In context: peer comparison
Among 165 peers in this city , average services per provider: 69. This provider delivers 5.2× the peer median.Open Payments
Industry payments received
All-time total
$65
Transactions
3
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Phathom Pharmaceuticals, Inc. | 2 | $46.25 | |
| Seqirus USA Inc | 1 | $18.58 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
543
Patients
144
Total drug cost
$8,800
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 77 | 21 | $684 |
| Atorvastatin Calcium | Generic | 70 | 18 | $542 |
| Simvastatin | Generic | 68 | 16 | $753 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 52 | 12 | $553 |
| Omeprazole | Generic | 51 | 23 | $699 |
| Lisinopril | Generic | 44 | 12 | $388 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 42 | 42 | $3,413 |
| Levothyroxine Sodium | Generic | 33 | 0 | $556 |
| Allopurinol | Generic | 20 | 0 | $499 |
| Losartan Potassium | Generic | 18 | 0 | $260 |
Frequently asked questions
What is Dr. Makoto Iwahara's medical specialty?
Dr. Makoto Iwahara practices Gastroenterology Physician in New York, NY.
Where does Dr. Makoto Iwahara practice?
Dr. Makoto Iwahara practices at 120 E 79Th St, New York, NY 100750319. Office phone: 2128792328.
What is Dr. Makoto Iwahara's NPI?
Dr. Makoto Iwahara's National Provider Identifier (NPI) is 1366627143, issued by NPPES.
Does Dr. Makoto Iwahara accept Medicare assignment?
Dr. Makoto Iwahara does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Makoto Iwahara commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.