NPPES file of Aug 9, 2026

Gena J. Markwalter, NP

Critical Care Medicine Nurse Practitioner · Augusta, GA

Gena J. Markwalter, NP is a critical care medicine nurse practitioner with a practice address in Augusta, Georgia, and NPI 1508993924, issued on Feb 27, 2007. Check the license (Georgia RN129040, as entered in NPPES) with the Georgia board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508993924
Name
Gena J. Markwalter
Credential
NP
Primary taxonomy
Critical Care Medicine Nurse Practitioner 363LC0200X
License number
RN129040 GA
Self-reported in NPPES; status is on the state search
Practice location
3647 J Dewey Gray Cir Ste 200, Augusta, GA 30909
Phone
(706) 504-9712
Enumerated
Feb 27, 2007
Record last updated
Oct 8, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(706) 504-9703
Medicare enrollment
Enrolled (PECOS I20100909001057); accepts Medicare assignment
Medical or professional school
Medical College Of Georgia School Of Medicine, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3647 J Dewey Gray Cir Ste 200

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. James Bardoner, M.D.Surgery Physician1558652032
  2. Kendra Batey, MDSurgical Critical Care Physician1811488505
  3. Mary Boggs, D.O.Surgery Physician1033389218
  4. Phyllis Costello, MSNNurse Practitioner1487081261
  5. Jody Criswell, NPNurse Practitioner1346893161
  6. Colville Ferdinand, MDSurgical Critical Care Physician1306956842

Verify Gena J. Markwalter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Georgia board licenses this profession
    Search for license RN129040
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Georgia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Burn Critical Care Associates LLCAugusta, GA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gena J. Markwalter among 84 critical care medicine nurse practitioner records in Georgia

Gena J. Markwalter, NP is one of 84 critical care medicine nurse practitioner records with a practice address in Georgia. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 5% of them.

  • NPI issued2007 · 5% of these records are older, 90% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 83% of these records are
  • Graduated2016 · median 2019 among the 70 with a school on file
  • Record last updated2018 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LC0200X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine Nurse Practitioner providers in Georgia

There are 84 critical care medicine nurse practitioner records in Georgia.

The 8 critical care medicine nurse practitioner records with the nearest ZIP codes

  1. Starla Wolfe, NPAugusta, GA 309091518508498
  2. Sarah Gaddy, NPAugusta, GA 309121376435339
  3. Ryan O'Hagan, AGACNP-BCAugusta, GA 309121750954814
  4. Taylor BowenDalton, GA 307201649849266
  5. Diana Hutchings, APRN, AGACNP-BCDalton, GA 307201619546645
  6. Brandi Sheppard, NPMacon, GA 312011407360084
  7. Jaimie Hollis, NPAthens, GA 306061023724986
  8. Jennifer Adamski, ARNP,ACNP-BCGainesville, GA 305011649387648

Common questions

What is Gena J. Markwalter, NP's NPI number?

Gena J. Markwalter, NP's National Provider Identifier (NPI) is 1508993924, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gena J. Markwalter, NP located?

The NPPES record lists a practice address at 3647 J Dewey Gray Cir Ste 200, Augusta, GA, 30909. Phone: (706) 504-9712. Providers update this record themselves, so call before visiting.

How can I verify Gena J. Markwalter, NP's license?

NPPES lists Georgia license number RN129040, as entered by the provider. Search the Georgia board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.