Active NPI
Flex Medical PC
- Internal Medicine Physician
- New York, NY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 243074
- Legal business name
- FLEX MEDICAL PC
- Practice address
- 225 Broadway
Ste 1420
New York, NY 10007-3001 - Phone
- (212) 571-5000
- NPI assigned
- Nov 28, 2008
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Sofya Kleyn, MD
- Title
- Owner
- Phone
- (212) 571-5000
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 243074 | NY | Primary |
Addresses
Primary practice location
225 Broadway
Ste 1420
New York, NY 10007-3001
Mailing address
225 Broadway Ste 910
New York, NY 10007-3008
Phone (212) 571-5000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY
Enrollment records 1
National Provider Directory
National Provider DirectoryLocations
699 Stanley Ave
#D
Brooklyn, NY 11207
Phone (347) 689-8880
255 E Broadway
Ste 910
New York, NY 10002
Phone (212) 571-5000
Practitioners & affiliated clinicians
Practitioners 1
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.
-
- Geriatric Medicine (Internal Medicine) Physician
- New York, NY
- NPI 1972628865
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1227830400000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1741305600000",
"number": "1255586517",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "225 BROADWAY STE 910",
"city": "NEW YORK",
"state": "NY",
"postal_code": "100073008",
"telephone_number": "212-571-5000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "225 BROADWAY",
"address_2": "STE 1420",
"city": "NEW YORK",
"state": "NY",
"postal_code": "100073001",
"telephone_number": "212-571-5000"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "FLEX MEDICAL PC",
"organizational_subpart": "NO",
"enumeration_date": "2008-11-28",
"last_updated": "2025-03-07",
"certification_date": "2025-03-07",
"status": "A",
"authorized_official_last_name": "KLEYN",
"authorized_official_first_name": "SOFYA",
"authorized_official_title_or_position": "OWNER",
"authorized_official_telephone_number": "212-571-5000",
"authorized_official_credential": "MD"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Internal Medicine",
"state": "NY",
"license": "243074",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in New York, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 7, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.