Active NPI
Stephen Kronenberg, M.D.
- Ophthalmology Physician
- New York, NY
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Ophthalmology Physician
- License
- 132294
- Practice address
- 605 Park Ave Ste 1B
New York, NY 10065-7016 - Phone
- (212) 737-0250
- Fax
- (914) 222-8869
- NPI assigned
- Mar 30, 2006
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Ophthalmology Physician | 207W00000X | 045046 | CT | |
| Ophthalmology Physician | 207W00000X | 132294 | NY | Primary |
Addresses
Primary practice location
605 Park Ave Ste 1B
New York, NY 10065-7016
Mailing address
605 Park Ave Ste 1B
New York, NY 10065-7016
Phone (212) 737-0250
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00460848 | Medicaid | NY |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY
- 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
- Ophthalmology
- Education
- Other, 1977
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
160 W 26TH St
FL 4
New York, NY 10001-6975
275 7TH Ave
FL 4
New York, NY 10001-6757
Phone (212) 924-2510
310 E 14TH St
Opthalmology Department of Mount Sinai
New York, NY 10003-4201
Phone (212) 241-0939
Hospital & facility affiliations
- Ny Eye and Ear Infirmary of Mount Sinai
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Cataract surgery | 1-10 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 045046 | CT | MD | Ophthalmology Physician |
| 132294 | NY | MD | Ophthalmology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Union Health Center, Inc | Current | Accepting new patients | |
| Union Health Center | Current | Accepting new patients | |
| Icahn School of Medicine at Mount Sinai | Ophthalmology | Current | Accepting new patients |
| Icahn School of Medicine at Mount Sinai | Ophthalmology | Current | Accepting new patients |
| Glenn E. Ostriker, M.D. | Ophthalmology | Past | Accepting new patients |
| Union Square Eye Care LLC | Ophthalmology | Past | Accepting new patients |
Locations
160 W 26th St
Fl 4
New York, NY 10001
Phone (212) 812-3736
275 7th Ave
Fl 4
New York, NY 10001
Phone (212) 812-3542
218 2nd Ave
New York, NY 10003
Phone (212) 979-4000
310 E 14th St
New York, NY 10003
Phone (212) 979-4000
Networks
- Healthfirst Medicare Network H3359
- Healthfirst Medicare Network H1722
- Healthfirst Medicare Network H9678
- Healthfirst Medicare Network H5989
Interoperability endpoints
- https://api.platform.athenahealth.com/14049/brand/10/csg/1/fhir/r4
Organizations & group practices 6
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Ophthalmology Physician
- New York, NY
- NPI 1437421252
-
- Multi-Specialty Clinic/Center
- New York, NY
- NPI 1871639989
-
- Internal Medicine Physician
- New York, NY
- NPI 1013900315
-
- Ophthalmology Physician
- New York, NY
- NPI 1508188038
-
- Ophthalmology Physician
- Stamford, CT
- NPI 1851517122
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Special Hospital
- New York City, NY
- NPI 1245251222
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1143676800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763596800000",
"number": "1639130529",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "605 PARK AVE STE 1B",
"city": "NEW YORK",
"state": "NY",
"postal_code": "100657016",
"telephone_number": "212-737-0250",
"fax_number": "914-222-8869"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "605 PARK AVE STE 1B",
"city": "NEW YORK",
"state": "NY",
"postal_code": "100657016",
"telephone_number": "212-737-0250",
"fax_number": "914-222-8869"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KRONENBERG",
"first_name": "STEPHEN",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-03-30",
"last_updated": "2025-11-20",
"certification_date": "2025-11-20",
"status": "A"
},
"taxonomies": [
{
"code": "207W00000X",
"taxonomy_group": "",
"desc": "Ophthalmology",
"state": "CT",
"license": "045046",
"primary": false
},
{
"code": "207W00000X",
"taxonomy_group": "",
"desc": "Ophthalmology",
"state": "NY",
"license": "132294",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "00460848",
"state": "NY"
}
],
"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 Nov 20, 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.