Active NPI
James Frederick 'Rick' Hammesfahr, M.D.
- Specialist
- Marietta, GA
National Provider Identifier
1235187733
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Specialist
- License
- 020113
- Practice address
- 1211 Johnson Ferry Rd
Marietta, GA 30068-2722 - Phone
- (770) 565-0011
- Fax
- (770) 565-9866
- NPI assigned
- May 5, 2006
- Sex
- Male
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Specialist | 174400000X | 020113 | GA | Primary |
Addresses
Primary practice location
1211 Johnson Ferry Rd
Marietta, GA 30068-2722
Mailing address
1211 Johnson Ferry Rd
Marietta, GA 30068-2722
Phone (770) 565-0011
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
- Opted out of Medicare
- Yes, effective Jun 15, 2016 through Jun 15, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1146787200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1235187733",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1211 JOHNSON FERRY RD",
"city": "MARIETTA",
"state": "GA",
"postal_code": "300682722",
"telephone_number": "770-565-0011",
"fax_number": "770-565-9866"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1211 JOHNSON FERRY RD",
"city": "MARIETTA",
"state": "GA",
"postal_code": "300682722",
"telephone_number": "770-565-0011",
"fax_number": "770-565-9866"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HAMMESFAHR",
"first_name": "JAMES",
"middle_name": "FREDERICK 'RICK'",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-05-05",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "174400000X",
"taxonomy_group": "",
"desc": "Specialist",
"state": "GA",
"license": "020113",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Marietta, GA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.