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Dr. Richard The Nguyen, DO
NPI1023185030PAC ID7719087063
- Medicare services, 2024
- 655
- Medicare patients, 2024
- 212
- Part D claims, 2024
- 136
- Publications
- 1
- Hospital affiliations
- 3
- Practice address
- 2637 Shadelands Drive, Walnut Creek, CA 94598
- Practice phone
- Call (925) 329-3710
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
BASS Imaging Center - Walnut Creek
Mammography / Breast Imaging Center · Walnut Creek, California
Find Dr. Nguyen'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. Richard The Nguyen is a general surgeon in Walnut Creek, California
Dr. Nguyen practices at BASS Imaging Center - Walnut Creek in Walnut Creek, California.
Dr. Nguyen's NPI, 1023185030, was assigned on November 29, 2006. Dr. Nguyen graduated from Touro University California - Vallejo in 2001. Dr. Nguyen holds California license 20A10031.
NPI and contact details
- NPI
- 1023185030NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719087063
- NPI enumeration date
- November 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (925) 329-3710
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard The Nguyen practices at BASS Imaging Center - Walnut Creek in Walnut Creek, California
Dr. Nguyen's primary practice is BASS Imaging Center - Walnut Creek, at 2637 Shadelands Drive, Walnut Creek, CA 94598. The practice phone is (925) 329-3710.
- BASS Imaging Center - Walnut Creek2637 Shadelands Drive, Walnut Creek, CA 94598Phone(925) 329-3710
Source: Dmand AI Affiliation Data
Dr. Richard The Nguyen is affiliated with 5 sites of care and 1 medical group
Dr. Nguyen's primary practice is BASS Imaging Center - Walnut Creek in Walnut Creek, California. Dr. Nguyen is also affiliated with El Camino Health - Mountain View Hospital. The medical group on file is BASS Medical Group. Dmand AI also links Dr. Nguyen to 2 more hospitals and 1 group practice or clinic, each named with a free account. Dr. Nguyen's employer is on file too: a breast imaging center.
BASS Imaging Center - Walnut CreekPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Richard The Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| BASS Imaging Center - Walnut Creek | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Richard The Nguyen is one of 2,926 general surgeons in California
Surgery is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Nguyen is board certified in general surgery by the American Osteopathic Board of Surgery. Dmand AI has Dr. Nguyen's licenses on file in 4 states: California, Maine, Michigan and Tennessee.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Maine license
- Michigan license
- Tennessee license
Clinical focus
Dmand AI lists abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal, groin hernia surgery and upper GI endoscopy among the conditions Dr. Nguyen treats.
General surgeons near Dr. Nguyen
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. Richard The Nguyen billed Medicare for 655 services in 2024
CMS data shows 655 Medicare services from Dr. Nguyen across 12 procedure codes in 2024, for 212 Medicare patients. Medicare paid $192,373 for them.
Medicare services, 2024655
Medicare patients212
Paid by Medicare$192,373
Procedure codes12
Dr. Nguyen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2852024: 50376%
- Office and hospital visits
- 2023: 992024: 15254%
Where Dr. Nguyen's Medicare services took place, 2024
- In an office10015%
- In a facility55585%
Dr. Nguyen compared with the California median for general surgeons, 2024
- Dr. Nguyen
- California median
- Medicare services
- 655vs 1663.9 times
- Medicare patients
- 212vs 12175% above
- Part D claims
- 39vs 3415% above
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Nguyen's most billed Medicare procedure codes, 2024
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. Nguyen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nguyen and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard The Nguyen treated 212 Medicare patients in 2024, average age 74
CMS counts 212 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 98 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 57, with 57% women.
Medicare patients, 2024212
Average age74
Average risk score1.42
Also on Medicaid24%
Dr. Nguyen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nguyen's Medicare patients by sex, 2024
- Women11554%
- Men9746%
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Diabetes36%
- Ischemic heart disease33%
- Anxiety29%
- Mood disorders29%
- Atrial fibrillation25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nguyen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard The Nguyen wrote 136 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 136 Medicare Part D claims for 55 patients. 96% of them were for generic drugs. CMS names the drug for 39 of them, across 2 drugs with 11 or more claims each, at $496 in total drug cost. In 2023, CMS named 33 claims across 2 drugs.
Part D claims, 2024136
Drugs named by CMS2
Total drug cost$496
Part D patients55
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic130 claims96%
- Brand-name and other6 claims4%
Dr. Nguyen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nguyen's Part D claims, 2024
- Opioids30%41 of 136 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 332024: 3918%
Drugs named by CMS: 2 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Richard The Nguyen ranks in the 96th percentile for hernia repair (minimally invasive) in Medicare
Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nguyen as offering telehealth. CMS counts 33 procedures of hernia repair (minimally invasive) by Dr. Nguyen, more than 96% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Nguyen ranks in Medicare procedure volume
- Spinal fusion
- 95th percentile292 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 58th percentile35 procedures
- Hernia repair (minimally invasive)
- 96th percentile33 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Richard The Nguyen has 1 publication on record
Dmand AI links 1 paper to Dr. Nguyen in 2018. Dr. Nguyen's most frequent co-authors are Michael V. Seger, MD, Moses Kun-Chi Shieh, DO and Adam B. Smith, DO.
Papers1
Dr. Nguyen's most frequent co-authors
- Michael V. Seger, MD1 shared paper
- Moses Kun-Chi Shieh, DO1 shared paper
- Adam B. Smith, DO1 shared paper
Recent publications by Dr. Nguyen
See who Dr. Nguyen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nguyen works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Richard The Nguyen received $175,457 in industry payments from 2016 to 2025
CMS Open Payments shows 358 general payments to Dr. Nguyen from 24 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 57% of the total. Ethicon Inc. paid the most, $35,271.
General payments to Dr. Nguyen by program year, 2016 to 2025
General payments to Dr. Nguyen by kind, 2016 to 2025
$175.5Kin total
- Consulting fees$100,71057%
- Speaker and faculty fees$23,25013%
- Travel and lodging$20,73012%
- Education$17,00010%
- Other$13,7668%
Companies that paid Dr. Nguyen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Richard The Nguyen has 1 award and honors on record
Dmand AI lists 1 award for Dr. Nguyen.
Awards and honors for Dr. Nguyen
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Richard The Nguyen graduated from Touro University California - Vallejo
Dr. Nguyen graduated from Touro University California - Vallejo in 2001. Dr. Nguyen is a member of ACS, AOA and SAGES.
- Medical school
- Board certified in general surgery
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Richard The Nguyen accepts plans from 8 insurance carriers
Dr. Nguyen is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Humana
- CMS Medicare
- Molina
Plan types Dr. Nguyen accepts, by number of carriers
- Medicare8
- PPO6
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Richard The Nguyen'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Richard The Nguyen
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. Richard The Nguyen's NPI number?
Dr. Richard The Nguyen's NPI number is 1023185030. It was assigned on November 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard The Nguyen?
Dr. Richard The Nguyen is a general surgeon in Walnut Creek, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Richard The Nguyen practice?
Dr. Nguyen practices at 2637 Shadelands Drive, Walnut Creek, CA 94598. Dr. Nguyen's primary practice is BASS Imaging Center - Walnut Creek in Walnut Creek, California. Dmand AI also links Dr. Nguyen to 2 hospitals and 1 group practice or clinic.
What is Dr. Richard The Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (925) 329-3710.
What is Dr. Richard The Nguyen's medical license number?
Dr. Nguyen holds California license 20A10031, one of the licenses on file in 4 states.
Which states has Dr. Richard The Nguyen been licensed in?
Dmand AI has state licenses on file for Dr. Nguyen in California (2007 to 2026), Maine (since 2015), Michigan (2004 to 2021) and Tennessee (2006 to 2009).
Which hospitals is Dr. Richard The Nguyen affiliated with?
Dr. Nguyen is affiliated with El Camino Health - Mountain View Hospital. Dmand AI links Dr. Nguyen to 2 more hospitals.
What medical group is Dr. Richard The Nguyen part of?
Dr. Nguyen is linked to BASS Medical Group.
Does Dr. Richard The Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 655 services in 2024, and Dr. Nguyen accepts Medicare assignment.
Does Dr. Richard The Nguyen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nguyen as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Richard The Nguyen see?
CMS counts 212 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 74.
Is Dr. Richard The Nguyen board certified?
Yes. Dr. Nguyen is board certified in general surgery by the American Osteopathic Board of Surgery.
What services does Dr. Richard The Nguyen bill to Medicare?
In 2024, Dr. Nguyen's most billed Medicare services were surgery: bones and joints (22853), surgery: bones and joints (22558) and surgery: urinary system (50715).
Where did Dr. Richard The Nguyen go to medical school?
Dr. Nguyen graduated from Touro University California - Vallejo in 2001.
What drugs does Dr. Richard The Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Oxycodone-Acetaminophen.
Has Dr. Richard The Nguyen received payments from drug or device companies?
CMS Open Payments shows $175,457 in general payments to Dr. Nguyen from 24 companies from 2016 to 2025. The largest total came from Ethicon Inc.
How long has Dr. Richard The Nguyen been practicing?
Dr. Nguyen graduated from medical school in 2001, 25 years ago.
Does Dr. Richard The Nguyen do research?
Dmand AI links 1 publication to Dr. Nguyen.
Who does Dr. Richard The Nguyen publish with?
Dr. Nguyen's most frequent co-authors are Michael V. Seger, MD (1 shared paper), Moses Kun-Chi Shieh, DO (1 shared paper) and Adam B. Smith, DO (1 shared paper).
What insurance does Dr. Richard The Nguyen accept?
Dr. Nguyen is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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