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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JAMES FREDERICK 'RICK' HAMMESFAHR M.D.
NPI 1235187733
Specialist in Marietta, GA

Active since May 05, 2006Opted out of Medicare · through Jun 15, 2028
1211 JOHNSON FERRY RD, MARIETTA, GA 30068(770) 565-0011(770) 565-9866 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About James Frederick 'rick' Hammesfahr M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JAMES FREDERICK 'RICK' HAMMESFAHR M.D. (NPI 1235187733) is an individual specialist in Marietta, Georgia, licensed in Georgia (020113) and active in the NPI registry since May 2006. He has opted out of Medicare through June 15, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1235187733
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameJAMES FREDERICK 'RICK' HAMMESFAHRCredential: M.D.
Location Address1211 JOHNSON FERRY RDMarietta, GA 30068-2722
Mailing Address1211 Johnson Ferry RdMarietta, GA 30068-2722 · (770) 565-0011 · Fax (770) 565-9866
Phone(770) 565-0011
Fax(770) 565-9866
Sole ProprietorNo
Enumeration DateMay 5, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1235187733 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in GA · 020113
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
1211 JOHNSON FERRY RD, Marietta, GA 30068
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

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Opted out of Medicare

James Frederick 'rick' Hammesfahr M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from June 15, 2016 through June 15, 2028.

Opt-Out Effective DateJune 15, 2016
Opt-Out In Effect ThroughJune 15, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CENTER FOR ORTHOPAEDIC AND SPORTS MEDICINE
Specialist
1211 JOHNSON FERRY RD
MARIETTA, GA 30068
Cobb County (770) 565-0011
CRAIG EVAN WEIL M.D.
Specialist
1211 JOHNSON FERRY RD
MARIETTA, GA 30068
Cobb County (770) 565-0011
ERIC SEAN STEENLAGE MD
Orthopaedic Surgery
1211 JOHNSON FERRY RD
MARIETTA, GA 30068
Cobb County (770) 565-0011

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Hammesfahr's NPI number?

The NPI number for James Hammesfahr is 1235187733. It was assigned to this individual provider in the NPPES registry on May 5, 2006.

Where is James Hammesfahr located?

James Hammesfahr practices at 1211 Johnson Ferry Rd, Marietta, GA 30068. The listed phone number is (770) 565-0011.

What is James Hammesfahr's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is James Hammesfahr enrolled in Medicare?

No. James Hammesfahr has opted out of Medicare through June 15, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for James Hammesfahr was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.