Active NPI
Ryszard Jerzy Chetkowski, M.D.
- Reproductive Endocrinology Physician
- Berkeley, CA
National Provider Identifier
1992883011
On this page
OIG exclusion record
The HHS Office of Inspector General’s List of Excluded Individuals/Entities (LEIE) contains a record with this NPI:
- Section 1128b(4) exclusion effective Jun 19, 2025.
Key facts
NPPES NPI Registry- Primary specialty
- Reproductive Endocrinology Physician
- License
- G47258
- Practice address
- 2999 Regent St Ste 101-a
Berkeley, CA 94705-2116 - Phone
- (510) 649-0440
- Fax
- (510) 649-8700
- NPI assigned
- Nov 2, 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Reproductive Endocrinology Physician | 207VE0102X | G47258 | CA | Primary |
Addresses
Primary practice location
2999 Regent St Ste 101-a
Berkeley, CA 94705-2116
Mailing address
2999 Regent St Ste 101-a
Berkeley, CA 94705-2116
Phone (510) 649-0440
Other names 1
- Dr. Richard Jerzy Chetkowski
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- HHS exclusion list flag
- Flagged The directory lists this NPI on an HHS exclusion list.
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| G47258 | CA | MD | Reproductive Endocrinology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1162425600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1183852800000",
"number": "1992883011",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2999 REGENT ST STE 101-A",
"city": "BERKELEY",
"state": "CA",
"postal_code": "947052116",
"telephone_number": "510-649-0440",
"fax_number": "510-649-8700"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2999 REGENT ST STE 101-A",
"city": "BERKELEY",
"state": "CA",
"postal_code": "947052116",
"telephone_number": "510-649-0440",
"fax_number": "510-649-8700"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHETKOWSKI",
"first_name": "RYSZARD",
"middle_name": "JERZY",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-11-02",
"last_updated": "2007-07-08",
"status": "A"
},
"taxonomies": [
{
"code": "207VE0102X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology, Reproductive Endocrinology",
"state": "CA",
"license": "G47258",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "RICHARD",
"last_name": "CHETKOWSKI",
"middle_name": "JERZY",
"prefix": "DR.",
"credential": "M.D.",
"code": "2",
"type": "Professional Name"
}
]
}
Other providers in Berkeley, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; OIG LEIE.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.