Maria Nguyen, M.D.
Family Medicine Physician · Waterloo, IA
Maria Nguyen, M.D. is a family medicine physician with a practice address in Waterloo, Iowa, and NPI 1629325568, issued on Aug 9, 2012. Check the license (Iowa R9418, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Maria Nguyen
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- R9418 IA
Self-reported in NPPES; status is on the state search - Practice location
- 2055 Kimball Ave, Waterloo, IA 50702
- Phone
- (319) 272-2112
- Enumerated
- Aug 9, 2012
- Record last updated
- Aug 9, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (231) 927-2210
- Medicare enrollment
- Enrolled (PECOS I20200310002741); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 2055 Kimball Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Connell, M.D.Family Medicine Physician1073510715
- Cortney Corson, ARNPFamily Nurse Practitioner1053794305
- Danielle Davenport, MDFamily Medicine Physician1255716809
- Gyobanna Driver, MDFamily Medicine Physician1801056874
- Shanna Elliott, DOFamily Medicine Physician1629458302
- Debra Flammang-Roper, LMSWMental Health Counselor1154357812
Verify Maria Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license R9418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family medicine physician in 2024
508 Medicare Part D claims for 323 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin80 claims
- Prednisone65 claims
- Amoxicillin-Clavulanate Potass64 claims
- Azithromycin63 claims
- Doxycycline Hyclate37 claims
- Mupirocin26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Franciscan Medical GroupBainbridge Island, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Nguyen among 2,336 family medicine physician records in Iowa
Maria Nguyen, M.D. is one of 2,336 family medicine physician records with a practice address in Iowa. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 67% of them.
- NPI issued2012 · 67% of these records are older, 31% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2011 · median 2006 among the 1,367 with a school on file
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
93 family medicine physician records list a practice address in Waterloo
They are 93 of the 1,512 NPPES records with a practice address in Waterloo, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Waterloo → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mitchel Bernstrom, M.D.Waterloo, IA 507021265489967
- Mark Bickley, D.O.Waterloo, IA 507021912948126
- Patricia Connell, M.D.Waterloo, IA 507021073510715
- Ronald Flory, MDWaterloo, IA 507021366483547
- Robert Friedman, M.D.Waterloo, IA 507021013915750
- Nicholas Goetsch, D.O.Waterloo, IA 507021740287614
- Michelle Graham, M.D.Waterloo, IA 507021295722106
- Geoffrey Hadlock, MDWaterloo, IA 507021184668709
Common questions
What is Maria Nguyen, M.D.'s NPI number?
Maria Nguyen, M.D.'s National Provider Identifier (NPI) is 1629325568, issued on Aug 9, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Maria Nguyen, M.D. located?
The NPPES record lists a practice address at 2055 Kimball Ave, Waterloo, IA, 50702. Phone: (319) 272-2112. Providers update this record themselves, so call before visiting.
How can I verify Maria Nguyen, M.D.'s license?
NPPES lists Iowa license number R9418, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Maria Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Maria Nguyen, M.D. had 508 Medicare Part D claims for 323 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.