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DR. GARY HAMAMOTO M.D.
NPI 1356348833
Surgery in Owings Mills, MD

Active since June 30, 2005PECOS Enrolled
76.58/100
CMS Quality Rating
23 CROSSROADS DR, SUITE #240, OWINGS MILLS, MD 21117(410) 581-0700(410) 581-0705 Get Directions Write a Review

NPPES record last updated: August 21, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Gary Hamamoto M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GARY HAMAMOTO M.D. (NPI 1356348833) is an individual surgery provider in Owings Mills, Maryland, licensed in Maryland (D0030516) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Northwest Hospital Center, and is a graduate of R Franklin University Of Med & Sci/chicago Medical School (1979).

NPPES Registry Identity

NPI1356348833
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. GARY HAMAMOTOCredential: M.D.
Location Address23 CROSSROADS DR, SUITE #240Owings Mills, MD 21117-5420
Mailing Address23 Crossroads Dr, Suite #240Owings Mills, MD 21117-5420 · (410) 581-0700 · Fax (410) 469-5690
Phone(410) 581-0700
Fax(410) 581-0705
Sole ProprietorNo
Medical School CMSR Franklin University Of Med & Sci/chicago Medical SchoolGraduated 1979
Enumeration DateJune 30, 2005
Last NPPES UpdateAugust 21, 2024
NPPES CertifiedAugust 21, 2024
✔ NPI 1356348833 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MD · D0030516
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
23 CROSSROADS DR, Owings Mills, MD 21117
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Other Identifiers 1

Medicaid373981300MD

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gary Hamamoto M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9537139811
PECOS Enrollment IDI20060131000873
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
161 services136 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
126 services126 patients
Limited ultrasound scan of abdomen 76705
A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.
117 services106 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
102 services85 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
42 services42 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
40 services40 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwest Hospital Center

Acute Care Hospitals · Randallstown, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210040
Location5401 Old Court RoadRandallstown, MD 21133 · Baltimore County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21117 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.56
Promoting Interoperability100
Improvement Activities40
Cost48.54

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARC ADAM HONIG M.D.
Ophthalmology
23 CROSSROADS DR, SUITE #310
OWINGS MILLS, MD 21117
Baltimore County (410) 581-1500
NOVLET MARVALYN FENWICK CRNA
Nurse Anesthetist, Certified Registered
23 CROSSROADS DR
OWINGS MILLS, MD 21117
Baltimore County (410) 356-0300
MS. LINDA K FULLER M.A., CCC-A
Audiologist
23 CROSSROADS DR, #400
OWINGS MILLS, MD 21117
Baltimore County (410) 356-2626
DR. MARGERY KATES MD
Obstetrics & Gynecology
23 CROSSROADS DR, SUITE 220
OWINGS MILLS, MD 21117
Baltimore County (410) 581-9200
MARK A MASHBURN M.D.
Otolaryngology
23 CROSSROADS DR, SUITE 400
OWINGS MILLS, MD 21117
Baltimore County (410) 356-2626
CHESAPEAKE EAR, NOSE & THROAT, P.A.
Otolaryngology
23 CROSSROADS DR, SUITE 400
OWINGS MILLS, MD 21117
Baltimore County (410) 356-2626
DR. LINDSAY S CREED AU.D., CCC-A, FAAA
Audiologist
23 CROSSROADS DR, SUITE 400
OWINGS MILLS, MD 21117
Baltimore County (410) 356-2626
ERIN ELIZABETH YOUNG AU.D.
Audiologist
23 CROSSROADS DR, SUITE 400
OWINGS MILLS, MD 21117
Baltimore County (410) 356-2626

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gary Hamamoto's NPI number?

The NPI number for Gary Hamamoto is 1356348833. It was assigned to this individual provider in the NPPES registry on June 30, 2005.

Where is Gary Hamamoto located?

Gary Hamamoto practices at 23 Crossroads Dr Suite #240, Owings Mills, MD 21117. The listed phone number is (410) 581-0700.

What is Gary Hamamoto's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Gary Hamamoto enrolled in Medicare?

Yes. Gary Hamamoto is registered in the Medicare PECOS enrollment system.

Is Gary Hamamoto affiliated with any hospitals?

According to CMS data, Gary Hamamoto is affiliated with Northwest Hospital Center.

When was this NPI record last updated?

The NPPES record for Gary Hamamoto was last updated on August 21, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.