Xiaoxi Ouyang, MD
Internal Medicine Physician · Nashua, NH
Xiaoxi Ouyang, MD is an internal medicine physician with a practice address in Nashua, New Hampshire, and NPI 1649479064, issued on Jul 16, 2007. Check the license (New Hampshire 16870, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Xiaoxi Ouyang
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 16870 NH
Self-reported in NPPES; status is on the state search - Practice location
- 154 Broad St Ste 1510, Nashua, NH 03063
- Phone
- (617) 272-7057
- Enumerated
- Jul 16, 2007
- Record last updated
- Aug 19, 2025
- Fax
- (949) 864-3519
- Medicare enrollment
- Enrolled (PECOS I20250910002939); accepts Medicare assignment
- Medical or professional school
- Mcgill University Faculty Of Dentistry, 2007
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 673 in New Hampshire → Look up another NPI →
Verify Xiaoxi Ouyang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 16870Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,475 Medicare Part D claims for 175 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Atorvastatin Calcium130 claims
- Lisinopril55 claims
- Levothyroxine Sodium54 claims
- Omeprazole51 claims
- Ozempic51 claims
- Metformin Hcl50 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.
Xiaoxi Ouyang among 673 internal medicine physician records in New Hampshire
Xiaoxi Ouyang, MD is one of 673 internal medicine physician records with a practice address in New Hampshire. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 43% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2007 · median 2005 among the 443 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
75 internal medicine physician records list a practice address in Nashua
They are 75 of the 3,140 NPPES records with a practice address in Nashua, and 673 internal medicine physician records in New Hampshire.
All 673 in New Hampshire → Every provider in Nashua → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Asma Ahmed, MDNashua, NH 030631972788073
- Jacinto Casio, MDNashua, NH 030631689691412
- Corin Dechirico, D.O.Nashua, NH 030631770676371
- Leslie Dionne, MDNashua, NH 030631942211644
- Philip Finocchiaro, M.D.Nashua, NH 030631538143730
- Neera Gupta, M.D.Nashua, NH 030631750599734
- Qi Lu, M.D.Nashua, NH 030631831490408
- Yair Melamed, M.D.Nashua, NH 030631184734493
Common questions
What is Xiaoxi Ouyang, MD's NPI number?
Xiaoxi Ouyang, MD's National Provider Identifier (NPI) is 1649479064, issued on Jul 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Xiaoxi Ouyang, MD located?
The NPPES record lists a practice address at 154 Broad St Ste 1510, Nashua, NH, 03063. Phone: (617) 272-7057. Providers update this record themselves, so call before visiting.
How can I verify Xiaoxi Ouyang, MD's license?
NPPES lists New Hampshire license number 16870, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Xiaoxi Ouyang, MD prescribe under Medicare Part D?
In 2024, Xiaoxi Ouyang, MD had 1,475 Medicare Part D claims for 175 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.