Physician Profile
Maki Yamamoto, MD
Unclaimed ProfileAbout Dr. Yamamoto
Maki Yamamoto, MD practices general surgery in Orange, CA. Maki is a 2004 graduate of New York Medical College. Maki is also listed as specializing in surgery and surgery of the hand. According to Medicare claims data, Maki cared for 506 Medicare patients across 574 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. The provider's National Provider Identifier (NPI) is 1336328194.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (714) 456-6847
- Email not available
Practice Locations
333 CITY BLVD W SUITE 1600
Orange, CA 92868
Conditions Commonly Evaluated or Treated
Within General Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Anorectal
Appendix, bowel, and emergency
Gallbladder and biliary
Hernia and abdominal wall
Skin and soft tissue
Abdominal
Abdominal wall
Breast
Colorectal
Digestive
- Acid reflux
- Acute pancreatitis
- Bleeding Stomach Ulcer
- Bowel Fistula
- Gastroparesis
- Swallowing difficulties
Emergency surgery
Endocrine
Gastrointestinal
Hernia
Infections
Lymphatic
Oncology
Procedures & services
Most searched procedures
Bowel and emergency abdominal
- Colon resection
- Exploratory laparoscopy
- Exploratory laparotomy
- Repair of perforated peptic ulcer
- Small-bowel resection
- Surgery for bowel obstruction
- Surgical drainage of abdominal abscess
- Surgical lysis of adhesions
Gallbladder and appendix
Hernia repair
Skin and soft tissue
Abdominal surgery
Abdominal wall
Access and nutrition
Anorectal
- Anal fistula surgery
- Drainage of anal abscess
- Hemorrhoid removal
- Rubber-band ligation of hemorrhoids
- Surgery for chronic anal fissure
Biopsy
Breast surgery
- Axillary lymph-node dissection
- Excisional biopsy of a breast mass
- Mastectomy
- Sentinel lymph-node biopsy
Breast Surgery
Colorectal
Colorectal surgery
Digestive procedures
Endocrine surgery
Gastrointestinal
Hernia surgery
Skin & Soft Tissue
Surgical Oncology
Surgical procedures
Vascular Access
Wound care
Procedures Most Often Billed to Medicare
574 services · 506 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm | Procedure | 11603 |
21 | As often as other peers in General Surgery |
| Imaging of lymph nodes during surgery | Procedure | 38900 |
19 | As often as other peers in General Surgery |
| Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm | Procedure | 12034 |
16 | Too few peers to compare |
| Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 2.1-3.0 cm | Procedure | 11643 |
13 | Too few peers to compare |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
13 | Too few peers to compare |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
144 | More than most peers in General Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
92 | More than most peers in General Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
67 | More often than most peers in General Surgery |
| Telephone medical discussion with physician, 5-10 minutes | Office visit | 99441 |
54 | More often than most peers in General Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
54 | More often than most peers in General Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other general surgeons at this location 5
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other general surgeons in Orange 6
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
Class of 2004 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Yamamoto specialize in?
Dr. Yamamoto is a general surgeon in Orange, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “General Surgery”.
NPI registry
Where is Dr. Yamamoto located?
Dr. Yamamoto is listed at 333 City Blvd W Suite 1600, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Yamamoto's phone number?
The number on file is (714) 456-6847. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Yamamoto's NPI number?
Dr. Yamamoto's National Provider Identifier is 1336328194. 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
Where did Dr. Yamamoto go to medical school?
Dr. Yamamoto attended New York Medical College, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Yamamoto been practicing?
Dr. Yamamoto has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Yamamoto do most often?
According to Medicare billing data, Dr. Yamamoto performs procedures including removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm, imaging of lymph nodes during surgery and intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 7.6-12.5 cm, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Yamamoto confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Yamamoto. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.