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Dr. Tom P. Nguyen, MD
NPI1609953553PAC ID1456540798
- Medicare services, 2017
- 22
- Part D claims, 2024
- 172
- Publications
- 1
- Hospital affiliations
- 1
- Industry payments
- $2,940
- Practice address
- 700 Lawrence Expressway, Santa Clara, CA 95051
- Practice phone
- Call (408) 236-6400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Tom P. Nguyen is a hospitalist in Santa Clara, California
Dr. Nguyen practices at Santa Clara Medical Center in Santa Clara, California, part of Kaiser Permanente.
Dr. Nguyen's NPI, 1609953553, was assigned on October 31, 2006. Dr. Nguyen graduated from UC San Diego School of Medicine in 1995. Dr. Nguyen holds California license A61106.
NPI and contact details
- NPI
- 1609953553NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456540798
- NPI enumeration date
- October 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 236-6400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tom P. Nguyen practices at Santa Clara Medical Center in Santa Clara, California
Dr. Nguyen's primary practice is Santa Clara Medical Center, at 700 Lawrence Expressway, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 236-6400.
- Santa Clara Medical Center700 Lawrence Expressway, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 236-6400
Source: Dmand AI Affiliation Data
Dr. Tom P. Nguyen is affiliated with 2 sites of care and 1 medical group
Dr. Nguyen's primary practice is Santa Clara Medical Center in Santa Clara, California, part of Kaiser Permanente. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Nguyen to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Tom P. Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Clara Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tom P. Nguyen is one of 3,186 hospitalists in California
Hospitalist is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Nguyen is licensed in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Hospitalists near Dr. Nguyen
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
3,186hospitalists in California36hospitalists in Santa Clara27hospitalists at Santa Clara Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Tom P. Nguyen billed Medicare for 22 services in 2017
CMS data shows 22 Medicare services from Dr. Nguyen across 1 procedure code in 2017. Medicare paid $1,341 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 201722
Paid by Medicare$1,341
Procedure codes1
Dr. Nguyen compared with the California median for hospitalists, 2017
- Dr. Nguyen
- California median
- Medicare services
- 22vs 43095% below
- Part D claims
- 11vs 6984% below
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Nguyen's most billed Medicare procedure codes, 2017
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 hospitalists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tom P. Nguyen's patients have a median age of 79
Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 79, with 43% women.
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 79
Patient panel by sex, all payers
- Women43%
- Men57%
Source: Dmand AI Patient Panel Data
Dr. Tom P. Nguyen wrote 172 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 172 Medicare Part D claims for 56 patients. 82% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $86 in total drug cost. In 2023, CMS named 22 claims across 2 drugs.
Part D claims, 2024172
Drugs named by CMS1
Total drug cost$86
Part D patients56
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic141 claims82%
- Brand-name and other31 claims18%
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
- Antibiotics16%28 of 172 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: 222024: 1150%
Drugs named by CMS: 1 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
How Dr. Tom P. Nguyen takes part in Medicare
Dr. Nguyen 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. Tom P. Nguyen has 1 publication on record
Dmand AI links 1 paper to Dr. Nguyen in 2019. Dr. Nguyen's most frequent co-authors are Catherine Anne Blish, MD, Hesham Mahmoud Mohamed Eissa, MD and Judith R. Kelsen, MD.
Papers1
Dr. Nguyen's most frequent co-authors
- Catherine Anne Blish, MD1 shared paper
- Hesham Mahmoud Mohamed Eissa, MD1 shared paper
- Judith R. Kelsen, MD1 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 hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Tom P. Nguyen received $2,940 in industry payments from 2021 to 2025
CMS Open Payments shows 6 general payments to Dr. Nguyen from 3 drug and device companies from 2021 to 2025. Consulting fees make up the largest share, 89% of the total. Abbott Laboratories paid the most, $2,781.
General payments to Dr. Nguyen by program year, 2021 to 2025
General payments to Dr. Nguyen by kind, 2021 to 2025
$2.9Kin total
- Consulting fees$2,62589%
- Food and beverage$31511%
Companies that paid Dr. Nguyen the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Tom P. Nguyen graduated from UC San Diego School of Medicine
Dr. Nguyen graduated from UC San Diego School of Medicine in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Tom P. 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 Data |
| 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) |
| 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 |
| 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. Tom P. 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. Tom P. Nguyen's NPI number?
Dr. Tom P. Nguyen's NPI number is 1609953553. It was assigned on October 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Tom P. Nguyen?
Dr. Tom P. Nguyen is a hospitalist in Santa Clara, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Tom P. Nguyen practice?
Dr. Nguyen practices at 700 Lawrence Expressway, Santa Clara, CA 95051. Dr. Nguyen's primary practice is Santa Clara Medical Center in Santa Clara, California, part of Kaiser Permanente. Dmand AI also links Dr. Nguyen to 1 group practice or clinic.
What is Dr. Tom P. Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (408) 236-6400.
What is Dr. Tom P. Nguyen's medical license number?
Dr. Nguyen holds California license A61106.
Which hospitals is Dr. Tom P. Nguyen affiliated with?
Dr. Nguyen practices at Santa Clara Medical Center in Santa Clara, California.
What medical group is Dr. Tom P. Nguyen part of?
Dr. Nguyen is linked to The Permanente Medical Group, Inc.
Does Dr. Tom P. Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 22 services in 2017, and Dr. Nguyen accepts Medicare assignment.
What services does Dr. Tom P. Nguyen bill to Medicare?
In 2017, Dr. Nguyen's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. Tom P. Nguyen go to medical school?
Dr. Nguyen graduated from UC San Diego School of Medicine in 1995.
Show 5 more questionsShow fewer questions
What drugs does Dr. Tom P. Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Atorvastatin Calcium.
Has Dr. Tom P. Nguyen received payments from drug or device companies?
CMS Open Payments shows $2,940 in general payments to Dr. Nguyen from 3 companies from 2021 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Tom P. Nguyen been practicing?
Dr. Nguyen graduated from medical school in 1995, 31 years ago.
Does Dr. Tom P. Nguyen do research?
Dmand AI links 1 publication to Dr. Nguyen.
Who does Dr. Tom P. Nguyen publish with?
Dr. Nguyen's most frequent co-authors are Catherine Anne Blish, MD (1 shared paper), Hesham Mahmoud Mohamed Eissa, MD (1 shared paper) and Judith R. Kelsen, MD (1 shared paper).
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