Physician Profile
Gregory S. Ishimoto, M.D. is a healthcare provider in Manitowoc, WI specializing in family medicine. Gregory trained at University of Southern California Keck School of Medicine, graduating in 2006. Gregory is also listed as specializing in student in an organized health care education program. According to Medicare claims data, Gregory cared for 383 Medicare patients across 390 services. The services billed most often include emergency department visit with moderate level of medical decision making, emergency department visit with low level of medical decision making, and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
4100 DEWEY ST
Manitowoc, WI 54220
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cardiometabolic
Digestive
Genitourinary and reproductive
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
Skin
Common childhood and ear conditions
Pain & Joints
Most searched procedures
Preventive interventions
Screening and testing
Diagnostic Tests
Exams & Screenings
Foot and Leg Pain
Heart & Circulation
Injections
Lungs & Breathing
Minor Procedures
Occupational Health
Office procedures
Pain Management
Preventive Care
Respiratory
Senior Care
Sexual & Reproductive Health
Skin Procedures
Sleep Health
Urgent Care Procedures
Wellness & Weight
Women's Health
390 services · 383 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
69 | More often than most peers in Family Medicine |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
115 | More often than most peers in Family Medicine |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
111 | More than most peers in Family Medicine |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
67 | As often as other peers in Family Medicine |
| Emergency department visit with straightforward medical decision making | Office visit | 99282 |
28 | More often than most peers in Family Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Gregory S. Ishimoto is a family doctor in Manitowoc, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
Gregory S. Ishimoto is listed at 4100 Dewey St, Manitowoc, WI 54220. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (805) 624-0615. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Gregory S. Ishimoto's National Provider Identifier is 1164681896. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Gregory S. Ishimoto attended University of Southern California Keck School of Medicine, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
Gregory S. Ishimoto has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Gregory S. Ishimoto provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Gregory S. Ishimoto. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.