Doctor profile · Federal record
Dr. Gary Hamamoto, M.D.
Surgery Physician (CMS: General Surgery) · Owings Mills, MD
- NPI 1356348833
- MIPS 73.9 / 100 · 2023
- 47 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
23 Crossroads Dr, Suite #240
Owings Mills, MD 211175420
(410) 581-0700
fax (410) 581-0705
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- August 21, 2024
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- Maryland #D0030516
- Medicaid
- MD #373981300
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1356348833. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
867
Distinct HCPCS
10
Medicare allowed
$176,909
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 186 | 150 | $136 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 159 | 159 | $234 | |
76705 |
Limited ultrasound scan of abdomen | 103 | 95 | $96 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 103 | 89 | $96 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 48 | 46 | $83 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 43 | 42 | $232 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 38 | 38 | $173 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 38 | 34 | $190 | |
82270 |
Stool analysis for blood to screen for colon tumors | 36 | 36 | $4 | |
49650 |
Repair of groin hernia using an endoscope | 33 | 33 | $503 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 90. This provider delivers 9.6× the peer median.Open Payments
Industry payments received
All-time total
$9,001
Transactions
16
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| INTUITIVE SURGICAL, INC. | 10 | $8,521.39 | |
| Medtronic, Inc. | 1 | $159.14 | |
| Boston Scientific Corporation | 2 | $111.04 | |
| Ethicon US, LLC | 1 | $109.28 | |
| Davol Inc. | 1 | $85.71 | |
| Micro-tech Endoscopy USA, Inc. | 1 | $14.82 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
65
Patients
63
Total drug cost
$128
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone Hcl | Generic | 65 | 63 | $128 |
Hospital affiliations
Frequently asked questions
What is Dr. Gary Hamamoto's medical specialty?
Dr. Gary Hamamoto practices Surgery Physician in Owings Mills, MD.
Where does Dr. Gary Hamamoto practice?
Dr. Gary Hamamoto practices at 23 Crossroads Dr, Owings Mills, MD 211175420. Office phone: 4105810700.
What is Dr. Gary Hamamoto's NPI?
Dr. Gary Hamamoto's National Provider Identifier (NPI) is 1356348833, issued by NPPES.
Does Dr. Gary Hamamoto accept Medicare assignment?
Dr. Gary Hamamoto does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Gary Hamamoto 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 99205); Limited ultrasound scan of abdomen (HCPCS 76705). Source: CMS Medicare Physician & Other Practitioners file.