Dr. Nhat M. To, MD
- Medicare services, 2020
- 15
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $420
- Medical groups
- 2
- Practice address
- 1425 S Main Street, Walnut Creek, CA 94596
- Practice phone
- Call (925) 295-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. To'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. Nhat M. To is an anesthesiologist in Walnut Creek, California
Dr. To practices at Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente.
Dr. To's NPI, 1639494172, was assigned on March 27, 2010. Dr. To graduated from UC Davis School of Medicine in 2010. Dr. To's California license number on file is A119070.
- NPI
- 1639494172NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163737891
- NPI enumeration date
- March 27, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 295-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nhat M. To practices at Walnut Creek Medical Center in Walnut Creek, California
Dr. To's primary practice is Walnut Creek Medical Center, at 1425 S Main Street, Walnut Creek, CA 94596 in Contra Costa County. The practice phone is (925) 295-4000.
- Walnut Creek Medical Center1425 S Main Street, Walnut Creek, CA 94596 · Contra Costa CountyPhone(925) 295-4000
Source: Dmand AI Affiliation Data
Dr. Nhat M. To is affiliated with 2 sites of care and 2 medical groups
Dr. To's primary practice is Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente. Dr. To is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. To to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nhat M. To's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. To practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Walnut Creek Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nhat M. To is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. To's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. To is board certified in anesthesiology by the American Board of Anesthesiology. Dr. To has a license on file in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. To
Counts of anesthesiologists 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. Nhat M. To billed Medicare for 15 services in 2020
CMS data shows 15 Medicare services from Dr. To across 1 procedure code in 2020. Medicare paid $1,908 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. To's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Anesthesia
- 2019: 1292020: 1588%
- Imaging
- 2019: 282020: 0100%
- Surgery
- 2019: 302020: 0100%
Dr. To compared with the California median for anesthesiologists, 2020
- Dr. To
- California median
- Medicare services
- 15vs 7279% below
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. To's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. To?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. To and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nhat M. To's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. To's median patient age at 55, with 60% women.
Dr. To's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women60%
- Men38%
Source: Dmand AI Patient Panel Data
How Dr. Nhat M. To takes part in Medicare
Dr. To accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nhat M. To has 1 publication on record
Dmand AI links 1 paper to Dr. To. Dr. To's most frequent co-authors are Amir A. Jamali, MD and Christopher J. Salgado, MD.
Dr. To's most frequent co-authors
Recent publications by Dr. To
See who Dr. To researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. To works with, so you can find a warm path to the right anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nhat M. To received $420 in industry payments from 2016 to 2021
CMS Open Payments shows 4 general payments to Dr. To from 4 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Baudax Bio Inc. paid the most, $195.
General payments to Dr. To by program year, 2016 to 2021
Companies that paid Dr. To the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nhat M. To graduated from UC Davis School of Medicine
Dr. To graduated from UC Davis School of Medicine in 2010.
- Medical school
- Board certified in anesthesiology
- Board certified in pediatric anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Nhat M. To accepts plans from 1 insurance carrier
Dr. To is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. To accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Nhat M. To'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Nhat M. To
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. Nhat M. To's NPI number?
Dr. Nhat M. To's NPI number is 1639494172. It was assigned on March 27, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Nhat M. To?
Dr. Nhat M. To is an anesthesiologist in Walnut Creek, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Nhat M. To practice?
Dr. To practices at 1425 S Main Street, Walnut Creek, CA 94596. Dr. To's primary practice is Walnut Creek Medical Center in Walnut Creek, California, part of Kaiser Permanente. Dmand AI also links Dr. To to 1 medical group.
What is Dr. Nhat M. To's office phone number?
The practice phone on file for Dr. To is (925) 295-4000.
What is Dr. Nhat M. To's medical license number?
Dr. To's California license number on file is A119070.
Which hospitals is Dr. Nhat M. To affiliated with?
Dr. To practices at Walnut Creek Medical Center in Walnut Creek, California. Dr. To is also affiliated with Ronald Reagan UCLA Medical Center.
What medical group is Dr. Nhat M. To part of?
Dr. To is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. To to 1 more medical group.
Does Dr. Nhat M. To accept Medicare?
Yes. CMS data shows Dr. To billed Medicare for 15 services in 2020, and Dr. To accepts Medicare assignment.
Is Dr. Nhat M. To board certified?
Yes. Dr. To is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Nhat M. To bill to Medicare?
In 2020, Dr. To's most billed Medicare services were anesthesia (00142).
Show 6 more questionsShow fewer questions
Where did Dr. Nhat M. To go to medical school?
Dr. To graduated from UC Davis School of Medicine in 2010.
Has Dr. Nhat M. To received payments from drug or device companies?
CMS Open Payments shows $420 in general payments to Dr. To from 4 companies from 2016 to 2021. The largest total came from Baudax Bio Inc.
How long has Dr. Nhat M. To been practicing?
Dr. To graduated from medical school in 2010, 16 years ago.
Does Dr. Nhat M. To do research?
Dmand AI links 1 publication to Dr. To.
Who does Dr. Nhat M. To publish with?
Dr. To's most frequent co-authors are Amir A. Jamali, MD (1 shared paper) and Christopher J. Salgado, MD (1 shared paper).
What insurance does Dr. Nhat M. To accept?
Dr. To is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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