Active NPI
Yi-Lo Yu, M.D.
- Obstetrics & Gynecology Physician
- Great Barrington, MA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics & Gynecology Physician
- License
- 256888
- Practice address
- 27 Lewis Ave
Great Barrington, MA 01230-1886 - Phone
- (413) 528-1470
- NPI assigned
- Jun 21, 2009
- Last updated
- Dec 1, 2025
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Obstetrics & Gynecology Physician | 207V00000X | 256888 | MA | Primary |
| Obstetrics & Gynecology Physician | 207V00000X | 81364 | CT | |
| Obstetrics & Gynecology Physician | 207V00000X | 320720-01 | NY |
Addresses
Primary practice location
27 Lewis Ave
Great Barrington, MA 01230-1886
Mailing address
27 Lewis Ave
Great Barrington, MA 01230-1886
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 110097222/A | Medicaid | MA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Obstetrics/Gynecology
- Education
- University of Minnesota Medical School, 2009
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
510 N St
Pittsfield, MA 01201-5493
Phone (413) 447-2351
780 Main St
Great Barrington, MA 01230-2148
Phone (413) 528-1470
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 81364 | CT | MD | Obstetrics & Gynecology Physician |
| 320720-01 | NY | MD | Obstetrics & Gynecology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Community Health Programs, Inc. | Current | Accepting new patients | |
| Henry Heywood Memorial Hospital | Current | Accepting new patients | |
| Riverbend Medical Group, Inc | Current | Accepting new patients | |
| Athol Memorial Hospital Incorporated | Current | Accepting new patients | |
| Community Health Programs | Current | Accepting new patients | |
| Henry Heywood Memorial Hospital | Current | Accepting new patients | |
| Berkshire Faculty Services Inc | Current | Accepting new patients | |
| Heywood Medical Group Inc. | Obstetrics & Gynecology | Current | Accepting new patients |
| Riverbend Medical Group, Inc. | Obstetrics & Gynecology | Current | Accepting new patients |
| Fairview Hospital | Current | Accepting new patients | |
| Community Health Programs, Inc. | Current | Accepting new patients | |
| Riverbend Medical Group, Inc | Past | Accepting new patients | |
| Community Health Programs | Past | Accepting new patients | |
| Fairview Hospital | Past | Accepting new patients |
Locations
2033 Main St
Athol, MA 01331
Phone (978) 249-1295
444 Montgomery St
Chicopee, MA 01020
Phone (413) 594-3111
242 Green St
Gardner, MA 01440
Phone (978) 258-4734
250 Green St
Gardner, MA 01440
Phone (978) 630-5050
780 S Main St
Ste 2
Gt Barrington, MA 01230
Phone (413) 447-2498
233 Carew St
#101
Springfield, MA 01104
Phone (413) 748-9212
271 Carew St
Springfield, MA 01104
Phone (413) 748-9000
Interoperability endpoints
- yi-lo.yu.1@3792.direct.athenahealth.com
Organizations & group practices 14
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba CHP community Health Center
- Federally Qualified Health Center (FQHC)
- Great Barrington, MA
- NPI 1013953009
-
- Critical Access Hospital
- Athol, MA
- NPI 1336120047
-
- Multi-Specialty Clinic/Center
- Pittsfield, MA
- NPI 1548212939
-
dba Heywood Hospital
- General Acute Care Hospital
- Gardner, MA
- NPI 1205823879
-
- General Practice Physician
- Gardner, MA
- NPI 1699762286
Obstetrics & Gynecology
-
dba Trinity Health Of New England Medical Group
- Internal Medicine Physician
- Springfield, MA
- NPI 1841651197
Obstetrics & Gynecology
-
dba CHP Barrington Obgyn
- Federally Qualified Health Center (FQHC)
- Great Barrington, MA
- NPI 1447488358
-
dba CHP Berkshire Pediatrics
- Pediatrics Physician
- Pittsfield, MA
- NPI 1942720214
-
dba East Mountain Medical
- Rural Health Clinic/Center
- Great Barrington, MA
- NPI 1881252286
-
dba Heywood Hospital
- Psychiatric Hospital Unit
- Gardner, MA
- NPI 1457685299
-
dba Trinity Health Of New England Medical Group
- Durable Medical Equipment & Medical Supplies
- Springfield, MA
- NPI 1265023154
-
dba CHP Lee Family Practice
- Community Health Clinic/Center
- Lee, MA
- NPI 1689945784
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Pittsfield, MA
- NPI 1295765261
-
- Critical Access Hospital
- Great Barrington, MA
- NPI 1730112251
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1245542400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764547200000",
"number": "1194952838",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "27 LEWIS AVE",
"city": "GREAT BARRINGTON",
"state": "MA",
"postal_code": "012301886"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "27 LEWIS AVE",
"city": "GREAT BARRINGTON",
"state": "MA",
"postal_code": "012301886",
"telephone_number": "413-528-1470"
}
],
"practiceLocations": [],
"basic": {
"last_name": "YU",
"first_name": "YI-LO",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2009-06-21",
"last_updated": "2025-12-01",
"certification_date": "2025-12-01",
"status": "A"
},
"taxonomies": [
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "MA",
"license": "256888",
"primary": true
},
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "CT",
"license": "81364",
"primary": false
},
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "NY",
"license": "320720-01",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "110097222/A",
"state": "MA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Great Barrington, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 1, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.