Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Theresa Lynn Catlin, NP, RN

Individual provider Oncology Registered Nurse · NPI 1861627028

Theresa Lynn Catlin, NP, RN is a Nurse Practitioner in Marietta, Georgia. Qualified in 2003, 23 years ago. Practices with Wellstar Medical Group LLC, a 3,072-clinician group and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
23
Licensed in
GA
In the registry since
2009
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

613 Roselane St NW
Marietta, GA 30060-6940
Phone: (770) 792-9800
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence RN172224 (GA)
Oncology Registered Nurse Taxonomy 163WX0200X · Licence RN172224 (GA)

Record details

NPI number1861627028
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP , RN
Sole proprietorNo
NPI enumeratedMay 18, 2009
Last updated in NPPESApril 17, 2024
Certification dateApril 17, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Wellstar Medical Group Llc — 3072 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients37
Services billed 44 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $286 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Wellstar Medical Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3072 clinicians in the practice; 12 are shown here.

Other providers in Marietta