Xi Freda Gu, M.D.
Internal Medicine Physician · New York, NY
Xi Freda Gu, M.D. is an internal medicine physician with a practice address in New York, New York, and NPI 1831142843, issued on May 19, 2006. Check the license (New York 203531, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Xi Freda Gu
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 203531 NY
Self-reported in NPPES; status is on the state search - Practice location
- 15 Elizabeth St, New York, NY 10013
- Phone
- (212) 274-1705
- Enumerated
- May 19, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (212) 274-1936
- Medicaid ID
- 01673569 NY
- Medicare enrollment
- Enrolled (PECOS I20040810000067); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 15 Elizabeth St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edward Cornico, PHARMDPharmacist1417701194
- Faith Zhao, MDInternal Medicine Physician1780623868
Verify Xi Freda Gu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 203531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,152 Medicare Part D claims for 213 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 50 claims were for opioids.
Most prescribed
- Atorvastatin Calcium200 claims
- Losartan Potassium107 claims
- Rosuvastatin Calcium105 claims
- Levothyroxine Sodium98 claims
- Metformin Hcl79 claims
- Amlodipine Besylate76 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.
Xi Freda Gu among 12,067 internal medicine physician records in New York
Xi Freda Gu, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1986 · median 2002 among the 7,221 with a school on file
- Record last updated2007 · 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 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,434 internal medicine physician records list a practice address in New York
They are 2,434 of the 98,468 NPPES records with a practice address in New York, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in New York → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Helang Kravitz, M.D.New York, NY 100131134118706
- Terry Lam, M.D.New York, NY 100131659371078
- Catherine Lee, MDNew York, NY 100131245223049
- Billy Li, M.D.New York, NY 100131659368223
- Fei-Lien Liong, MDNew York, NY 100131457323727
- Jeffrey Low, MDNew York, NY 100131972586881
Common questions
What is Xi Freda Gu, M.D.'s NPI number?
Xi Freda Gu, M.D.'s National Provider Identifier (NPI) is 1831142843, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Xi Freda Gu, M.D. located?
The NPPES record lists a practice address at 15 Elizabeth St, New York, NY, 10013. Phone: (212) 274-1705. Providers update this record themselves, so call before visiting.
How can I verify Xi Freda Gu, M.D.'s license?
NPPES lists New York license number 203531, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Xi Freda Gu, M.D. prescribe under Medicare Part D?
In 2024, Xi Freda Gu, M.D. had 2,152 Medicare Part D claims for 213 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.