Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Yi-Lo Yu, M.D.

Obstetrics & Gynecology Physician in Great Barrington, MA · enumerated 2009 · practices at Berkshire Hematology Oncology, P.C..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1194952838

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Registry record

Entity type Individual (Type 1)

Name Dr. Yi-Lo Yu

Credential M.D.

Sex Female

Practice address Great Barrington, MA, 01230

Phone (413) 528-1470

Enumeration date Jun 21, 2009

Last updated in NPPES Dec 1, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 256888 (MA) Primary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 81364 (CT) Secondary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 320720-01 (NY) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
110097222/A	Medicaid	MA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Yi-Lo Yu's NPI record?

Cross-check NPI 1194952838 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1194952838 active?

Yes, as of the latest NPPES snapshot, NPI 1194952838 is active (record last updated 2025-12-01).

Other providers at this practice address

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Pier Boutin Orthopaedic Surgery Physician · Gt Barrington, MA NPI 1811948490 Mani George Internal Medicine Physician · Gt Barrington, MA NPI 1497843650 Berkshire Hematology Oncology, P.C. Durable Medical Equipment & Medical Supplies · Great Barrington, MA NPI 1164619276 Keegan Strzempko Gynecology Physician · Great Barrington, MA NPI 1386229185 Jennifer Rubino Community Health Registered Nurse · Great Barrington, MA NPI 1134853526

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-01.