Dr. Zachary Brian Atto, DO
- Industry payments
- $428
- State licenses
- 2
- Year NPI issued
- 2019
- Practice address
- 155 N Fresno St, Fresno, CA 93701-2302
- Practice phone
- Call (559) 499-6400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Atto's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Zachary Brian Atto is a general surgeon in Fresno, California
Dr. Atto practices in Fresno, California.
Dr. Atto's NPI, 1487113056, was assigned on March 13, 2019. Dr. Atto graduated from Texas College of Osteopathic Medicine in 2019. Dr. Atto holds California license 20A22824.
- NPI
- 1487113056NPI Registry (opens in a new tab)
- NPI enumeration date
- March 13, 2019
- NPI status
- Active
- Practice phone
- (559) 499-6400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Zachary Brian Atto's practice address is in Fresno, California
Dr. Atto's practice address in the NPI Registry is 155 N Fresno St, Fresno, CA 93701-2302. The practice phone is (559) 499-6400.
- NPI Registry address155 N Fresno St, Fresno, CA 93701-2302Phone(559) 499-6400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Zachary Brian Atto's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Atto practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Atto's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zachary Brian Atto is one of 2,926 general surgeons in California
Surgery is Dr. Atto's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dmand AI has Dr. Atto's licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Military health care provider, Texas
General surgeons near Dr. Atto
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Zachary Brian Atto's patients have a median age of 52
Across all payers, Dmand AI patient panel data puts Dr. Atto's median patient age at 52, with 19% women.
Dr. Atto's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women19%
- Men81%
Source: Dmand AI Patient Panel Data
Dr. Zachary Brian Atto received $428 in industry payments from 2024 to 2025
CMS Open Payments shows 3 general payments to Dr. Atto from 3 drug and device companies from 2024 to 2025. Education make up the largest share, 71% of the total. Medical Device Business Services, Inc. paid the most, $305.
General payments to Dr. Atto by program year, 2024 to 2025
General payments to Dr. Atto by kind, 2024 to 2025
- Education$30571%
- Food and beverage$12329%
Companies that paid Dr. Atto the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Zachary Brian Atto graduated from Texas College of Osteopathic Medicine
Dr. Atto graduated from Texas College of Osteopathic Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Zachary Brian Atto's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Zachary Brian Atto
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Zachary Brian Atto's NPI number?
Dr. Zachary Brian Atto's NPI number is 1487113056. It was assigned on March 13, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary Brian Atto?
Dr. Zachary Brian Atto is a general surgeon in Fresno, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Zachary Brian Atto practice?
Dr. Atto practices at 155 N Fresno St, Fresno, CA 93701-2302.
What is Dr. Zachary Brian Atto's office phone number?
The practice phone on file for Dr. Atto is (559) 499-6400.
What is Dr. Zachary Brian Atto's medical license number?
Dr. Atto holds California license 20A22824, one of the licenses on file in 2 states.
Which states has Dr. Zachary Brian Atto been licensed in?
Dmand AI has state licenses on file for Dr. Atto in California (2024 to 2026) and Texas (2020 to 2024).
Where did Dr. Zachary Brian Atto go to medical school?
Dr. Atto graduated from Texas College of Osteopathic Medicine in 2019.
Has Dr. Zachary Brian Atto received payments from drug or device companies?
CMS Open Payments shows $428 in general payments to Dr. Atto from 3 companies from 2024 to 2025. The largest total came from Medical Device Business Services, Inc.
How long has Dr. Zachary Brian Atto been practicing?
Dr. Atto graduated from medical school in 2019, 7 years ago.
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