Phys Med Biol
Magnetic PhenomenaMonte Carlo MethodProtons
Dr. Theodore T. Nguyen, MD
NPI1962573907PAC ID3476540824
- Part D claims, 2024
- 5,625
- Publications
- 2
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 441 N Lakeview Ave, Anaheim, CA 92807
- Practice phone
- Call (714) 279-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern California Permanente Medical Group
Anaheim, 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. Theodore T. Nguyen is an internist in Anaheim, California
Dr. Nguyen practices at Southern California Permanente Medical Group in Anaheim, California.
Dr. Nguyen's NPI, 1962573907, was assigned on November 13, 2006. Dr. Nguyen graduated from New York Medical College in 1999. Dr. Nguyen holds California license A75034.
NPI and contact details
- NPI
- 1962573907NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476540824
- NPI enumeration date
- November 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 279-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Theodore T. Nguyen practices at Southern California Permanente Medical Group in Anaheim, California
Dr. Nguyen's primary practice is Southern California Permanente Medical Group, at 441 N Lakeview Ave, Anaheim, CA 92807 in Orange County. The practice phone is (714) 279-4000.
- Southern California Permanente Medical Group441 N Lakeview Ave, Anaheim, CA 92807 · Orange CountyPhone(714) 279-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Theodore T. Nguyen is affiliated with 3 sites of care and 1 medical group
Dr. Nguyen's primary practice is Southern California Permanente Medical Group in Anaheim, California. Dr. Nguyen is also affiliated with Orange County - Anaheim Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Nguyen to 1 more group practice or clinic, named with a free account.
Southern California Permanente Medical GroupPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Theodore T. 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 |
|---|---|
| Southern California Permanente Medical Group | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Nguyen practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Theodore T. Nguyen is one of 16,751 internists in California
Internal medicine is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nguyen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Nguyen
Counts of internists 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. Theodore T. Nguyen's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 64, with 57% 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 64
Patient panel by sex, all payers
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. Theodore T. Nguyen wrote 5,625 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 5,625 Medicare Part D claims for 481 patients. 92% of them were for generic drugs. CMS names the drug for 5,174 of them, across 86 drugs with 11 or more claims each, at $153,385 in total drug cost. In 2023, CMS named 4,422 claims across 76 drugs.
Part D claims, 20245,625
Drugs named by CMS86
Total drug cost$153,385
Part D patients481
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic5,153 claims92%
- Brand-name378 claims7%
- Other94 claims2%
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
- Opioids5%269 of 5,625 claims
- Antibiotics1%84 of 5,625 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: 4,4222024: 5,17417%
Drugs named by CMS: 86 in 2024, 76 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. Theodore T. 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)
For MedTech and pharma teams
Find internists like Dr. Nguyen by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Theodore T. Nguyen has 2 publications on record
Dmand AI links 2 papers to Dr. Nguyen, published from 2018 to 2019. The most frequent topics are Monte Carlo Method, Protons and Radiosurgery. Dr. Nguyen has published most often in Phys Med Biol. Dr. Nguyen's most frequent co-authors are Jerry D. Slater, MD and Patrick Quinn McGee, MD.
Papers2
Years published2018 to 2019
Topics Dr. Nguyen writes about most
- Monte Carlo Method
- Protons
- Radiosurgery
Dr. Nguyen's most frequent co-authors
Recent publications by Dr. Nguyen
Phys Med Biol
MagneticsMonte Carlo MethodPhantoms, Imaging
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 internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Theodore T. Nguyen graduated from New York Medical College
Dr. Nguyen graduated from New York Medical College in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Theodore T. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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 |
| 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. Theodore T. 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. Theodore T. Nguyen's NPI number?
Dr. Theodore T. Nguyen's NPI number is 1962573907. It was assigned on November 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Theodore T. Nguyen?
Dr. Theodore T. Nguyen is an internist in Anaheim, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Theodore T. Nguyen practice?
Dr. Nguyen practices at 441 N Lakeview Ave, Anaheim, CA 92807. Dr. Nguyen's primary practice is Southern California Permanente Medical Group in Anaheim, California. Dmand AI also links Dr. Nguyen to 1 group practice or clinic.
What is Dr. Theodore T. Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (714) 279-4000.
What is Dr. Theodore T. Nguyen's medical license number?
Dr. Nguyen holds California license A75034.
Which hospitals is Dr. Theodore T. Nguyen affiliated with?
Dr. Nguyen is affiliated with Orange County - Anaheim Medical Center.
What medical group is Dr. Theodore T. Nguyen part of?
Dr. Nguyen is linked to Southern California Permanente Medical Group.
Does Dr. Theodore T. Nguyen accept Medicare?
Yes. CMS lists Dr. Nguyen as accepting Medicare assignment.
Where did Dr. Theodore T. Nguyen go to medical school?
Dr. Nguyen graduated from New York Medical College in 1999.
What drugs does Dr. Theodore T. Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Show 3 more questionsShow fewer questions
How long has Dr. Theodore T. Nguyen been practicing?
Dr. Nguyen graduated from medical school in 1999, 27 years ago.
Does Dr. Theodore T. Nguyen do research?
Dmand AI links 2 publications to Dr. Nguyen, published from 2018 to 2019.
Who does Dr. Theodore T. Nguyen publish with?
Dr. Nguyen's most frequent co-authors are Jerry D. Slater, MD (2 shared papers) and Patrick Quinn McGee, MD (1 shared paper).
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card