Michael Ryan Oldenburg, NP
Critical Care Medicine Nurse Practitioner · Marietta, GA
Michael Ryan Oldenburg, NP is a critical care medicine nurse practitioner with a practice address in Marietta, Georgia, and NPI 1659910800, issued on Jan 4, 2020. Check the license (Georgia RN259503, as entered in NPPES) with the Georgia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Ryan Oldenburg
- Credential
- NP
- Primary taxonomy
- Critical Care Medicine Nurse Practitioner 363LC0200X
- License number
- RN259503 GA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Tower RD NE Ste 200, Marietta, GA 30060
- Phone
- (770) 422-1372
- Enumerated
- Jan 4, 2020
- Record last updated
- Oct 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20211105001514); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine nurse practitioner records → All 84 in Georgia → Look up another NPI →
Also registered at 400 Tower RD NE Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abdel-Rauof AkkariStudent in an Organized Health Care Education/Training Program1669051462
- Tiffany Boulanger, AGACNPAcute Care Nurse Practitioner1700308509
- William Capland, PAPhysician Assistant1073234357
- Ashlee Castro-Scott, N.P.Acute Care Nurse Practitioner1376092015
- Kevin Chapla, M.D.Critical Care Medicine (Internal Medicine) Physician1225398175
- Nikulkumar Chaudhari, M.D.Critical Care Medicine (Internal Medicine) Physician1245526755
Verify Michael Ryan Oldenburg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Georgia board licenses this profession
Search for license RN259503Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 92.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Wellstar Medical Group LLCAustell, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Ryan Oldenburg among 84 critical care medicine nurse practitioner records in Georgia
Michael Ryan Oldenburg, 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 2020, is newer than 51% of them.
- NPI issued2020 · 51% of these records are older, 43% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2021 · median 2019 among the 70 with a school on file
- Record last updated2021 · 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.
All 84 in Georgia → Every provider in Marietta → Critical Care Medicine Nurse Practitioner nationwide →
The 8 critical care medicine nurse practitioner records with the nearest ZIP codes
- Sarah Blackstock, AGACNP-BCMarietta, GA 300601598249211
- Brittaney HaleyMarietta, GA 300601174238224
- Jodi Holland, NPMarietta, GA 300601598136814
- Angela McMichael, AGACNPMarietta, GA 300601912558065
- Talesha Miller, AGACNP-BCMarietta, GA 300601215656442
- Christie Sams, AGACNP-BCMarietta, GA 300601649887118
- John Scarborough, ACNPC-AGMarietta, GA 300601023542925
- Michael Self, NPMarietta, GA 300601235844424
Common questions
What is Michael Ryan Oldenburg, NP's NPI number?
Michael Ryan Oldenburg, NP's National Provider Identifier (NPI) is 1659910800, issued on Jan 4, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Michael Ryan Oldenburg, NP located?
The NPPES record lists a practice address at 400 Tower RD NE Ste 200, Marietta, GA, 30060. Phone: (770) 422-1372. Providers update this record themselves, so call before visiting.
How can I verify Michael Ryan Oldenburg, NP's license?
NPPES lists Georgia license number RN259503, as entered by the provider. Search the Georgia board that licenses this profession; the NPPES record confirms identity only.
What is Michael Ryan Oldenburg, NP's MIPS final score?
The 2023 MIPS final score is 92.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.