Peter Nguyen, DO
Geriatric Psychiatry Physician · Washington, DC
Peter Nguyen, DO is a geriatric psychiatry physician with a practice address in Washington, District of Columbia, and NPI 1922454172, issued on May 6, 2016. Check the license (District of Columbia DO034764, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Peter Nguyen
- Credential
- DO
- Primary taxonomy
- Geriatric Psychiatry Physician 2084P0805X
- License number
- DO034764 DC
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Alabama Ave SE, Washington, DC 20032
- Phone
- (202) 299-5000
- Enumerated
- May 6, 2016
- Record last updated
- May 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
5 nearest geriatric psychiatry physician records → All 6 in District of Columbia → Look up another NPI →
Also registered at 1100 Alabama Ave SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Peter Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license DO034764Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average geriatric psychiatry physician in 2024
13 Medicare Part D claims, against an average of 1,485 among the 473 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
Most prescribed
- Invega Sustenna13 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.
Industry payments in 2024: $22.78
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 200 providers of this specialty with any payment received $2,189.26 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Geriatric Psychiatry Physician providers in District of Columbia
There are 6 geriatric psychiatry physician records in District of Columbia.
All 6 in District of Columbia → Every provider in Washington → Geriatric Psychiatry Physician nationwide →
The 5 geriatric psychiatry physician records with the nearest ZIP codes
- Tejpal Singh, M.D.Washington, DC 200171629235015
- Walter Bland, MDWashington, DC 200591639101553
- Charles Milliken, M.D.Washington, DC 203071942366224
- Sarah Kleinfeld, MDWashington, DC 204221861836850
- Panakkal David, M.D.Washington, DC 205221942271937
Common questions
What is Peter Nguyen, DO's NPI number?
Peter Nguyen, DO's National Provider Identifier (NPI) is 1922454172, issued on May 6, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Peter Nguyen, DO located?
The NPPES record lists a practice address at 1100 Alabama Ave SE, Washington, DC, 20032. Phone: (202) 299-5000. Providers update this record themselves, so call before visiting.
How can I verify Peter Nguyen, DO's license?
NPPES lists District of Columbia license number DO034764, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Peter Nguyen, DO prescribe under Medicare Part D?
In 2024, Peter Nguyen, DO had 13 Medicare Part D claims; the average among geriatric psychiatry physician prescribers was 1,485. 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.