Yian Xiao, M.D.
Internal Medicine Physician · Boston, MA
Yian Xiao, M.D. is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1932547221, issued on Jun 7, 2013. Check the license (Massachusetts 266952, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Yian Xiao
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 266952 MA
Self-reported in NPPES; status is on the state search - Practice location
- 801 Massachusetts Avenue, Boston, MA 02118
- Phone
- (617) 414-5951
- Enumerated
- Jun 7, 2013
- Record last updated
- May 9, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (617) 414-9201
- Medicaid ID
- 110112803A MA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
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Verify Yian Xiao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 266952Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $65.19
1 payment: food and beverage; the largest payer was GE Healthcare. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Yian Xiao among 6,825 internal medicine physician records in Massachusetts
Yian Xiao, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 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 2013, is newer than 70% of them.
- NPI issued2013 · 70% of these records are older, 28% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2019 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2,320 internal medicine physician records list a practice address in Boston
They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Boston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Daniel Alford, M.D., M.P.H.Boston, MA 021181194708628
- Lori Balestrero, MDBoston, MA 021181750384046
- Virginia Barrow, M.D.Boston, MA 021181639175466
- Monica Bharel, MDBoston, MA 021181093798084
- Claire Carlo, M.D.Boston, MA 021181336125871
- Chava Chapman, M.D., M.P.H.Boston, MA 021181558346239
- Paul Fallon, MDBoston, MA 021181437145927
- Irene Gavras, M.D.Boston, MA 021181619953601
Common questions
What is Yian Xiao, M.D.'s NPI number?
Yian Xiao, M.D.'s National Provider Identifier (NPI) is 1932547221, issued on Jun 7, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Yian Xiao, M.D. located?
The NPPES record lists a practice address at 801 Massachusetts Avenue, Boston, MA, 02118. Phone: (617) 414-5951. Providers update this record themselves, so call before visiting.
How can I verify Yian Xiao, M.D.'s license?
NPPES lists Massachusetts license number 266952, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.