Physician Profile
Michael A. Esparza, MD
Unclaimed ProfileAbout Dr. Esparza
Michael A. Esparza, MD is a healthcare provider in Walnut Creek, CA specializing in trauma surgery. Michael is also listed as specializing in surgical critical care. According to Medicare claims data, Michael cared for 247 Medicare patients across 374 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and critical care, first 30-74 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
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.
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
- (925) 937-0404
- Email not available
Practice Locations
1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598
Procedures Most Often Billed to Medicare
374 services · 247 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Limited ultrasound scan of abdomen | Imaging | 76705 |
11 | |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
120 | More often than most peers in Trauma Surgery |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
84 | More often than most peers in Trauma Surgery |
| Critical care, first 30-74 minutes | Office visit | 99291 |
78 | More often than most peers in Trauma Surgery |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
32 | More than most peers in Trauma Surgery |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
24 | As often as other peers in Trauma Surgery |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
14 | |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
11 |
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.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2014 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Limited ultrasound scan of abdomen 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Esparza specialize in?
Dr. Esparza is a trauma surgeon in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Trauma Surgery”.
NPI registry
Where is Dr. Esparza located?
Dr. Esparza is listed at 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Esparza's phone number?
The number on file is (925) 937-0404. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Esparza's NPI number?
Dr. Esparza's National Provider Identifier is 1295149540. 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. Esparza go to medical school?
Dr. Esparza attended Other, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Esparza been practicing?
Dr. Esparza has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Esparza do most often?
According to Medicare billing data, Dr. Esparza performs imaging including limited ultrasound scan of abdomen, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Esparza confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Esparza. 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.